vernacular
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So my system was running two GIGABYTE 980 Ti in SLI just fine on a Seasonic SS-1050XP³. However, after installing two 1080 Ti in SLI it appears that's just too much for the power supply and it triggers shut off under load. On subsequent boot the motherboard BIOS indicates surge protection was triggered. Even with surge protection turned off in BIOS there is still shut off under heavy load. I have tested the cards separately and neither of them is individually causing shut off. I can only conclude there is not enough power for both cards.
To test that this is a lack of power issue I have a spare PSU; Seasonic SS-1250XM that would theoretically provide 200W of extra headroom. However, I would like to easily swap out the current PSU and use the same cables, but I do not know the pin out of the 1050W PSU. On OC forums I discovered the pin out ONLY for the 1250W. While researching I also noticed some of the models have a small 2 or 3 after the model number and I'm not sure if those revisions altered pin out.
TL;DR - My 1080 Ti in SLI don't seem to be getting enough power. Can I swap a Seasonic SS-1050XP³ with a Seasonic SS-1250XM and use the same cables that are already in the system?
CASE: Lian Li O11-Dynamic (Alpine White) .. MOBO: GIGABYTE Z390 Aorus Master .. CPU: Intel i9-9900K w/ EK Supremacy EVO Nickel .. GPU: EVGA 2080 Ti XC Gaming w/ Phanteks Glacier Waterblock .. RAM: Corsair Vengeance RGB Pro 16GB DDR4 3200Mhz .. RADs: 360mm + 240mm .. PSU: Seasonic Prime 1300w .. DISPLAYs: Asus PG297 + XP-Pen 15.6 .. OS: Windows 10 Pro
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Cool GTX
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 10:47:42
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GTXJackBauer
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 11:00:28
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vernacular
TL;DR - My 1080 Ti in SLI don't seem to be getting enough power. Can I swap a Seasonic SS-1050XP³ with a Seasonic SS-1250XM and use the same cables that are already in the system?
Could be a faulty cable or something not seated right. I would use their designated cables just in case to rule a number of things out. You could temporarily connect externally with the case open. Just make sure you only have connect the essentials and everything else is disconnected, especially those connected to the other PSU. The 1050w PSU is more than enough to power 1080ti's in SLI. I don't see you going beyond 800w-900w at the most.
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aka_STEVE_b
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 11:07:51
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manuals seem to suggest they share the same pin outs . BUT I would send in an email to Seasonic to make triple sure. http://www.overclock.net/...-power-supply-pin-outs P.S. - I think a solid 800 & above PSU is more than enough to power 2x 1080 ti's , Either it's wired in wrong ( rails aren't split properly ) or the unit is going bad * Seasonic suggests you should be running 4 separate cables to the cards. Two separate cables for each graphic card.... https://seasonic.com/troubleshooting/False Anti-surge Shutdown Issue
The built-in anti-surge feature on some motherboards is known to produce false-positive readings while monitoring the output voltages of the power supply. Seasonic power supplies have their own integral safety features to protect all the components against electrical damage. When your system shuts down due to this problem in the motherboard, please follow these steps:
Update the BIOS of your motherboard to the latest version available.
Check the power supply’s output readings in the BIOS.
If all seems to be normal then turn OFF your motherboard’s anti-surge protection.
To make sure that everything runs properly, you can check your benchmark scores (Futuremark, OCCT, etc.) https://seasonic.com/faq/  
post edited by aka_STEVE_b - 2017/06/20 11:22:55
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bob16314
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 11:27:00
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If unsure, you could put your spare SS-1250XM on the desk with only it's PCIe cables to power the graphics cards, then power it on by jumping pins 16 and 17 of the 24-pin connector as shown in the attachment below..That is commonly referred to as the 'paper clip test' to power on a PSU for bench testing..That would take the graphics cards PCIe connector load off your installed SS-1050XP³..The SS-1250XM would be the dedicated power supply to just the PCIe connectors..Then see if it still shuts down..That be what I would do, and have done.
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vernacular
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 11:30:14
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GTXJackBauer
The 1050w PSU is more than enough to power 1080ti's in SLI. I don't see you going beyond 800w-900w at the most.
That's what people say and I don't see why it's not working myself since 1050W worked with two 980 Ti and my overclocked i7-5930K. I have a Cablemod set for the 1050W. Just in case those were faulty I used the original cables that came with PSU to power the GPUs, but had the same result. The reason I considered the 1250W may have the same pin out is because I looked at a Bitfenix set of cables which claims to work with both the 1050W XP³ and 1250W XM², but my 1250W is XM without the ². Here are the cables I'm talking about: https://www.newegg.com/Product/Product.aspx?Item=N82E16812493218 Running the cables again would be an absolute pain especially if it turns out power limitations are not causing the shut off. aka_STEVE_b
manuals seem to suggest they share the same pin outs . BUT I would send in an email to Seasonic to make triple sure.
That's probably the best bet, yet I had hoped someone here would know. I should check with Seasonic themselves.
CASE: Lian Li O11-Dynamic (Alpine White) .. MOBO: GIGABYTE Z390 Aorus Master .. CPU: Intel i9-9900K w/ EK Supremacy EVO Nickel .. GPU: EVGA 2080 Ti XC Gaming w/ Phanteks Glacier Waterblock .. RAM: Corsair Vengeance RGB Pro 16GB DDR4 3200Mhz .. RADs: 360mm + 240mm .. PSU: Seasonic Prime 1300w .. DISPLAYs: Asus PG297 + XP-Pen 15.6 .. OS: Windows 10 Pro
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Sajin
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 11:57:23
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I'd swap the cables just to safe.
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vernacular
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/20 13:54:39
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Waiting for response from Seasonic. In the meantime, I lowered the power target to 90% in MSI Afterburner and the computer no longer shuts off during heavy load. I'm left somewhat convinced that the two 1080 Ti really are taking too much power from the PSU. If I can easily swap out the 1050W for the 1250W I will try that with the default power target of 100% again and if there's no problem I'll maybe do some overclocking. For now, this is more than enough graphics horsepower for anything I have at 4K/60fps even with the power target lowered. EDIT:Seasonic responded and told me that the cables from the Seasonic SS-1050XP³ are compatible with Seasonic SS-1250XM², but not the Seasonic SS-1250XM that I have. Good thing I didn't rush in and took the time to check because using those cables would have been catastrophic otherwise. Looks like I'll have to tediously re-do all the cable management if I want to replace the 1050W with the 1250W. Since the shut off issue went away once I lowered the power target in Afterburner I'm in no rush. It's odd though that the 1080 Ti in SLI were shutting off a 1050W PSU under load. I thought the 1050W PSU would work fine with those GPUs, but then I had those shut offs.
post edited by vernacular - 2017/06/20 19:16:32
CASE: Lian Li O11-Dynamic (Alpine White) .. MOBO: GIGABYTE Z390 Aorus Master .. CPU: Intel i9-9900K w/ EK Supremacy EVO Nickel .. GPU: EVGA 2080 Ti XC Gaming w/ Phanteks Glacier Waterblock .. RAM: Corsair Vengeance RGB Pro 16GB DDR4 3200Mhz .. RADs: 360mm + 240mm .. PSU: Seasonic Prime 1300w .. DISPLAYs: Asus PG297 + XP-Pen 15.6 .. OS: Windows 10 Pro
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raceitchris
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/21 00:57:08
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I began having shutdowns every 1-5 minutes with my 1080Ti FE's in SLi while gaming. Seasonic 1000w Platinum was heavily used everyday for 5 years. Ran across this thread... http://www.overclock.net/...nough-for-oced-1080tis So I took a gamble and bought a new Corsair AX1500i PSU. Not only did the new PSU completely fix my shutdown problems, but the system and games run smoother now and my FE's clock at 2000Mhz OC, whereas the old PSU they would clock @ 1968. New PSU & problem solved.
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PietroBR
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/21 04:32:17
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I have a Corsair HX1050, and I was having Surges in my 1080Ti (note, before reinstalling Win10 again, there wasn't any problem like this).
I run a 1080TI FTW3 with +50 Core Clock / +330 Mem. Clock / 127% Pwr Target.
I entered in Asus Bios (Rampage IV Gene), and checked the monitoring area, my 3.3V Rail was in red, running around 2.9V.
What I did, was unplug all the components of the PC, from the wall, and replugged the 24pin from MOBO and the 8pins from the GPU.
Restarted, checked, and the 3.3 was running around 3.1/3.2V.
Since this, I had no more problems with power surge.
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vernacular
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/21 20:23:49
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PietroBR
I entered in Asus Bios (Rampage IV Gene), and checked the monitoring area, my 3.3V Rail was in red, running around 2.9V.
Under the Monitor section of my BIOS it says: 3.3V Voltage: +3.312V (on another boot it changed to +3.328V)5V Voltage +5.000V (intermittently switches to +5.040V)12V Voltage +12.096V (stays the same) Seems there are no deficits in the power supplied, but it's not enough. The 1080 Ti HYBRID boost clocks over 1900MHz at stock settings so it's likely consuming a bit more power than a stock 1080 Ti. Even when I lower the power target to 90% the boost clock still passes 1900MHz. I've run some things which were most consistent in triggering a shut off before, but since lowering the power target I have not had any more shut offs.
CASE: Lian Li O11-Dynamic (Alpine White) .. MOBO: GIGABYTE Z390 Aorus Master .. CPU: Intel i9-9900K w/ EK Supremacy EVO Nickel .. GPU: EVGA 2080 Ti XC Gaming w/ Phanteks Glacier Waterblock .. RAM: Corsair Vengeance RGB Pro 16GB DDR4 3200Mhz .. RADs: 360mm + 240mm .. PSU: Seasonic Prime 1300w .. DISPLAYs: Asus PG297 + XP-Pen 15.6 .. OS: Windows 10 Pro
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Quad5Ny
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/21 21:52:10
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PietroBR
I have a Corsair HX1050, and I was having Surges in my 1080Ti (note, before reinstalling Win10 again, there wasn't any problem like this).
I run a 1080TI FTW3 with +50 Core Clock / +330 Mem. Clock / 127% Pwr Target.
I entered in Asus Bios (Rampage IV Gene), and checked the monitoring area, my 3.3V Rail was in red, running around 2.9V.
What I did, was unplug all the components of the PC, from the wall, and replugged the 24pin from MOBO and the 8pins from the GPU.
Restarted, checked, and the 3.3 was running around 3.1/3.2V.
Since this, I had no more problems with power surge.
Main power rail specs are +/- 5%. 2.9V is way out and 3.1V is just out of spec. For 3.3V you're looking for 3.135V to 3.465V.
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PietroBR
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/22 04:13:02
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vernacular
Under the Monitor section of my BIOS it says:
3.3V Voltage: +3.312V (on another boot it changed to +3.328V)
5V Voltage +5.000V (intermittently switches to +5.040V)
12V Voltage +12.096V (stays the same)
Seems there are no deficits in the power supplied, but it's not enough. The 1080 Ti HYBRID boost clocks over 1900MHz at stock settings so it's likely consuming a bit more power than a stock 1080 Ti. Even when I lower the power target to 90% the boost clock still passes 1900MHz. I've run some things which were most consistent in triggering a shut off before, but since lowering the power target I have not had any more shut offs.
Mine is usually boosting to 2025 / 2000MHz. But again, with no problems with power surge. Quad5Ny
Main power rail specs are +/- 5%. 2.9V is way out and 3.1V is just out of spec. For 3.3V you're looking for 3.135V to 3.465V.
Sorry Quad5Ny, I wasn't very precise with my answer. What I meant to say, is that the 3.3V Rail wasn't exactly on 3.1, but was rovering around 3.1/3.25. When I arrive home today, I will take a pic. to see how it is in the moment. Also, thanks for the heads up on the recommended spec.
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ArmeniusLOD
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/22 06:27:12
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I would check other components as well instead of just focusing on the video card and power supply. When I was having a shutdown issue it turned out to be the heatsinks over the VRM on my motherboard were loose, causing them to overheat. After reseating that the shutdown issue went away.
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vernacular
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/22 11:19:37
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ArmeniusLOD
When I was having a shutdown issue it turned out to be the heatsinks over the VRM on my motherboard were loose, causing them to overheat. After reseating that the shutdown issue went away.
According to motherboard's temperature readings: VRM is 49°C, PCH is 43°C, Motherboard is 33°C But again, my issue went away when I lowered the power target of the GPUs in MSI Afterburner software. So I must conclude it was related to power consumption.
CASE: Lian Li O11-Dynamic (Alpine White) .. MOBO: GIGABYTE Z390 Aorus Master .. CPU: Intel i9-9900K w/ EK Supremacy EVO Nickel .. GPU: EVGA 2080 Ti XC Gaming w/ Phanteks Glacier Waterblock .. RAM: Corsair Vengeance RGB Pro 16GB DDR4 3200Mhz .. RADs: 360mm + 240mm .. PSU: Seasonic Prime 1300w .. DISPLAYs: Asus PG297 + XP-Pen 15.6 .. OS: Windows 10 Pro
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Cool GTX
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/22 11:46:54
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Yes, your cards are probably capable of pull too much power based on your description
In Folding on my Rigs, I see the power demand change with different work.
So if you OC your card and put a large demand on them they will pull a lot of power
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GTXJackBauer
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/22 12:12:46
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Guys, guys, guys, there's no way this guy is pulling more than 700w-800w on 2 GPUs in SLI. I would try a different outlet at the house on a different breaker for one. I would than test out each hardware outside of the case with a different GPU, etc.
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Valtrius Malleus
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/23 05:51:30
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GTXJackBauer
Guys, guys, guys, there's no way this guy is pulling more than 700w-800w on 2 GPUs in SLI. I would try a different outlet at the house on a different breaker for one. I would than test out each hardware outside of the case with a different GPU, etc.
The 1080Ti FE draws 250W out of the box and although I cant find how much a 5930X draws, its TDP is 140W so we can assume its somewhere around that. With two cards in SLi thats a total of 640W with no overclocking. If the two cards are overclocked then 740W is the minimum without looking to overclock the CPU. If the two 1080Ti's are something like a FTW3 which have a 280W limit, that can be increased to 127% then that is 710 watts of power on the two cards alone! Add in the 140W for the CPU and you're pulling a conservative 850W out of the wall. Taking efficiency and other components into account, 1000W might not be enough.
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GTXJackBauer
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/23 09:45:04
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Valtrius Malleus
GTXJackBauer
Guys, guys, guys, there's no way this guy is pulling more than 700w-800w on 2 GPUs in SLI. I would try a different outlet at the house on a different breaker for one. I would than test out each hardware outside of the case with a different GPU, etc.
The 1080Ti FE draws 250W out of the box and although I cant find how much a 5930X draws, its TDP is 140W so we can assume its somewhere around that. With two cards in SLi thats a total of 640W with no overclocking. If the two cards are overclocked then 740W is the minimum without looking to overclock the CPU.
If the two 1080Ti's are something like a FTW3 which have a 280W limit, that can be increased to 127% then that is 710 watts of power on the two cards alone! Add in the 140W for the CPU and you're pulling a conservative 850W out of the wall. Taking efficiency and other components into account, 1000W might not be enough.
Obviously my post was based on stock settings, especially when you're having issues, it's always best to run things at stock and figure out what could be the problem.
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Cool GTX
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/23 10:55:07
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GTXJackBauer
I would try a different outlet at the house on a different breaker for one. I would than test out each hardware outside of the case with a different GPU, etc.
+1 valid point If the PSU is not up to the task of OC SLI setup, then maybe the +12 is lacking due to age or defect. I've seen it before where the PSU should work, but with enough demand the PC shuts down and a new PSU solves the issue. FYI: My Folding Rig = Nibbler can pull 1250 Watts with CPU OC, but normally it's about 1000 watts as displayed on the ups with 3 GPUs. - spec in signature
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808sting
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/06/23 21:59:52
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Cool GTX
GTXJackBauer
I would try a different outlet at the house on a different breaker for one. I would than test out each hardware outside of the case with a different GPU, etc.
+1 valid point
If the PSU is not up to the task of OC SLI setup, then maybe the +12 is lacking due to age or defect. I've seen it before where the PSU should work, but with enough demand the PC shuts down and a new PSU solves the issue.
FYI: My Folding Rig = Nibbler can pull 1250 Watts with CPU OC, but normally it's about 1000 watts as displayed on the ups with 3 GPUs. - spec in signature
+1 on PSU. If the breaker is not tripping, it still could be a line power problem. Unlikely, but frequency drift, harmonics, etc can affect systems. But we're talking about extremes. Without power quality monitoring, it's guess work. Since lowering the power limits eliminated the PSU shutoff, it seems the power supply is not up to task. 1200w PSU should be a good base for extreme SLI rigs. A reputable 1200 or more PSU is good long term investment. I just ran firestrike and during the 1st test, system hovers in the low-mid 900s. Currently, only CPU is using this UPS. All other devices are using a separate unit. See system config below. 
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hyp36rmax
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/08/30 23:50:21
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vernacular
So my system was running two GIGABYTE 980 Ti in SLI just fine on a Seasonic SS-1050XP³. However, after installing two 1080 Ti in SLI it appears that's just too much for the power supply and it triggers shut off under load. On subsequent boot the motherboard BIOS indicates surge protection was triggered. Even with surge protection turned off in BIOS there is still shut off under heavy load. I have tested the cards separately and neither of them is individually causing shut off. I can only conclude there is not enough power for both cards.
To test that this is a lack of power issue I have a spare PSU; Seasonic SS-1250XM that would theoretically provide 200W of extra headroom. However, I would like to easily swap out the current PSU and use the same cables, but I do not know the pin out of the 1050W PSU. On OC forums I discovered the pin out ONLY for the 1250W. While researching I also noticed some of the models have a small 2 or 3 after the model number and I'm not sure if those revisions altered pin out.
TL;DR - My 1080 Ti in SLI don't seem to be getting enough power. Can I swap a Seasonic SS-1050XP³ with a Seasonic SS-1250XM and use the same cables that are already in the system?
I'm having this problem with EVGA 1080TI FTW3 in SLI with a Seasonic 1200 Watt myself. Trying to isolate each PCIE cable just like the diagram below. Otherwise its a PSU RMA for me. aka_STEVE_b
manuals seem to suggest they share the same pin outs . BUT I would send in an email to Seasonic to make triple sure.
http://www.overclock.net/...-power-supply-pin-outs
P.S. - I think a solid 800 & above PSU is more than enough to power 2x 1080 ti's , Either it's wired in wrong ( rails aren't split properly ) or the unit is going bad
* Seasonic suggests you should be running 4 separate cables to the cards. Two separate cables for each graphic card....
https://seasonic.com/troubleshooting/
False Anti-surge Shutdown Issue
The built-in anti-surge feature on some motherboards is known to produce false-positive readings while monitoring the output voltages of the power supply. Seasonic power supplies have their own integral safety features to protect all the components against electrical damage. When your system shuts down due to this problem in the motherboard, please follow these steps:
Update the BIOS of your motherboard to the latest version available.
Check the power supply’s output readings in the BIOS.
If all seems to be normal then turn OFF your motherboard’s anti-surge protection.
To make sure that everything runs properly, you can check your benchmark scores (Futuremark, OCCT, etc.)
https://seasonic.com/faq/
This looks like the issue for OP since he says he's using Cablemods that have a dual 6+2 PCIe. OP should try the diagram above. vernacular
GTXJackBauer
The 1050w PSU is more than enough to power 1080ti's in SLI. I don't see you going beyond 800w-900w at the most.
That's what people say and I don't see why it's not working myself since 1050W worked with two 980 Ti and my overclocked i7-5930K.
I have a Cablemod set for the 1050W. Just in case those were faulty I used the original cables that came with PSU to power the GPUs, but had the same result. The reason I considered the 1250W may have the same pin out is because I looked at a Bitfenix set of cables which claims to work with both the 1050W XP³ and 1250W XM², but my 1250W is XM without the ². Here are the cables I'm talking about: https://www.newegg.com/Product/Product.aspx?Item=N82E16812493218
Running the cables again would be an absolute pain especially if it turns out power limitations are not causing the shut off.
aka_STEVE_b
manuals seem to suggest they share the same pin outs . BUT I would send in an email to Seasonic to make triple sure.
That's probably the best bet, yet I had hoped someone here would know. I should check with Seasonic themselves.
Both the Cablemod and Seasonic 6+2 PCIE cables are the dual variety. Try isolating to one cable per PSU end just like the diagram above.
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Hoggle
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/08/31 00:25:32
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Cool GTX
GTXJackBauer
I would try a different outlet at the house on a different breaker for one. I would than test out each hardware outside of the case with a different GPU, etc.
+1 valid point
If the PSU is not up to the task of OC SLI setup, then maybe the +12 is lacking due to age or defect. I've seen it before where the PSU should work, but with enough demand the PC shuts down and a new PSU solves the issue.
FYI: My Folding Rig = Nibbler can pull 1250 Watts with CPU OC, but normally it's about 1000 watts as displayed on the ups with 3 GPUs. - spec in signature
I would agree with this since it's not the breaker tripping it could be an old outlet or old wiring but I would wonder more about the +12 rail not being able to handle it though I guess it's kind of a moot point since he replaced the PSU and it works fine.
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KarmNelis
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/08/31 05:18:42
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vernacular
So my system was running two GIGABYTE 980 Ti in SLI just fine on a Seasonic SS-1050XP³. However, after installing two 1080 Ti in SLI it appears that's just too much for the power supply and it triggers shut off under load. On subsequent boot the motherboard BIOS indicates surge protection was triggered. Even with surge protection turned off in BIOS there is still shut off under heavy load. I have tested the cards separately and neither of them is individually causing shut off. I can only conclude there is not enough power for both cards.
To test that this is a lack of power issue I have a spare PSU; Seasonic SS-1250XM that would theoretically provide 200W of extra headroom. However, I would like to easily swap out the current PSU and use the same cables, but I do not know the pin out of the 1050W PSU. On OC forums I discovered the pin out ONLY for the 1250W. While researching I also noticed some of the models have a small 2 or 3 after the model number and I'm not sure if those revisions altered pin out.
TL;DR - My 1080 Ti in SLI don't seem to be getting enough power. Can I swap a Seasonic SS-1050XP³ with a Seasonic SS-1250XM and use the same cables that are already in the system?
I have a Seasonic X-1050 PSU with 1080Ti SLI and a 7700K, using default cables without any problems. You can switch back to original cables since it's not that bad. It's quite soft.  If the problem still happens, PSU is maybe faulty.
CPU - Intel 8700K - 5.1GHz core, 5.0GHz cache, 1.37v GPU - EVGA FTW3 1080Ti SLI - 2.0GHz core, 12GHz memory Motherboard - Asus Maximus X Hero Memory - Corsair Dominator 4x16GB - 3000MHz default XMP 15-17-17-35PSU - EVGA 1600T2Fire Strike 36838 Extreme 25250 Ultra 14464
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vernacular
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/10/23 07:50:16
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UPDATE:
I had lowered the power target to 92% for the SLI 1080 Ti HYBRID cards on my SeaSonic SnowSilent 1050 without any further shut offs (except one that I couldn't duplicate with the same conditions). However it turns out, as some of you may have suspected, the power supply was dying! It died today outright and won't power anything. Luckily, I have that spare 1250W SeaSonic PSU, but man was it a pain to redo the cables. I don't think the SnowSilent 1050 is still within warranty. The 1250W spare PSU is older. It has multicolored wires as opposed to the flat black ones SeaSonic uses in newer models. Hopefully it can last regardless.
It's a sad day. Rest in peace, SeaSonic SnowSilent 1050. I really liked the silver/white aesthetics of it. It went so well with the white Fractal Define R5.
CASE: Lian Li O11-Dynamic (Alpine White) .. MOBO: GIGABYTE Z390 Aorus Master .. CPU: Intel i9-9900K w/ EK Supremacy EVO Nickel .. GPU: EVGA 2080 Ti XC Gaming w/ Phanteks Glacier Waterblock .. RAM: Corsair Vengeance RGB Pro 16GB DDR4 3200Mhz .. RADs: 360mm + 240mm .. PSU: Seasonic Prime 1300w .. DISPLAYs: Asus PG297 + XP-Pen 15.6 .. OS: Windows 10 Pro
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KarmNelis
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/10/23 07:53:09
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looks don't matter in the end
CPU - Intel 8700K - 5.1GHz core, 5.0GHz cache, 1.37v GPU - EVGA FTW3 1080Ti SLI - 2.0GHz core, 12GHz memory Motherboard - Asus Maximus X Hero Memory - Corsair Dominator 4x16GB - 3000MHz default XMP 15-17-17-35PSU - EVGA 1600T2Fire Strike 36838 Extreme 25250 Ultra 14464
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Cool GTX
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/10/23 08:15:18
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Happy the old dying PSU did Not takeout any other hardware on its way out the door. Now with your spare PSU - your up and running stable  Time to start looking for a deal on a New PSU ?
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Ranmacanada
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/10/23 09:34:58
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You're just lucky the PSU didn't go out in a ball of flames haha. Glad it was solved and no hardware was killed in the process.
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GTXJackBauer
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/10/23 11:27:18
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To be fair, it was a Seasonic so that could be the reason why it didn't take the whole house with it.
Glad you got it all figured out and working again. With that said, I would still go with the same company.
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Sajin
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Re: 1080 Ti in SLI Triggers PSU Shut Off When Under Heavy Load
2017/10/23 14:35:59
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vernacular
UPDATE:
I had lowered the power target to 92% for the SLI 1080 Ti HYBRID cards on my SeaSonic SnowSilent 1050 without any further shut offs (except one that I couldn't duplicate with the same conditions). However it turns out, as some of you may have suspected, the power supply was dying! It died today outright and won't power anything. Luckily, I have that spare 1250W SeaSonic PSU, but man was it a pain to redo the cables. I don't think the SnowSilent 1050 is still within warranty. The 1250W spare PSU is older. It has multicolored wires as opposed to the flat black ones SeaSonic uses in newer models. Hopefully it can last regardless.
It's a sad day. Rest in peace, SeaSonic SnowSilent 1050. I really liked the silver/white aesthetics of it. It went so well with the white Fractal Define R5.
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