• Overclocking Lab
  • [Guide] How to force max voltage & curve overclock with msi afterburner (p.18)
2019/07/09 06:57:18
Purish
Upgraded to a 2080Ti FTW3 Ultra Hybrid and I can't seem to get it past 2100 mhz even at 1087/1093 mV. If I go up a step to 2115 MHz it'll instantly crash out of any game.
 
Might just be my card isn't the best for overclocking. I'm currently keeping it locked to 1087 mV @ 2070 MHz so I don't get VRel Perfcap. Any suggestions/advice? It'll step down to 2040 MHz @ 1087 mV as it approaches 55C.
2019/07/09 07:13:32
bcavnaugh
Purish
Upgraded to a 2080Ti FTW3 Ultra Hybrid and I can't seem to get it past 2100 mhz even at 1087/1093 mV. If I go up a step to 2115 MHz it'll instantly crash out of any game.
 
Might just be my card isn't the best for overclocking. I'm currently keeping it locked to 1087 mV @ 2070 MHz so I don't get VRel Perfcap. Any suggestions/advice? It'll step down to 2040 MHz @ 1087 mV as it approaches 55C.

Maybe your Overclocking of your CPU and Motherboard Memory is not stable with the RTX Graphics Card.
I would set them back to Auto on both and make sure you have Reset the Bios after you installed your RTX Graphics Card and that the Motherboard Bios is updated.
Make sure you are using 2 Separate PCIe Power Cables from the Power Supply to the Graphics Card.
Your Power Supply maybe to small and even to old as well.
2019/07/09 07:22:14
Cool GTX
Purish
Upgraded to a 2080Ti FTW3 Ultra Hybrid and I can't seem to get it past 2100 mhz even at 1087/1093 mV. If I go up a step to 2115 MHz it'll instantly crash out of any game.
 
Might just be my card isn't the best for overclocking. I'm currently keeping it locked to 1087 mV @ 2070 MHz so I don't get VRel Perfcap. Any suggestions/advice? It'll step down to 2040 MHz @ 1087 mV as it approaches 55C.


 
Remove any CPU, MB & RAM OC and test card
 
How are you "loading the GPU" to check for Max MHz ?

Keep the card Cool as possible - Is the Radiator being used as intake ?  (FYI: max voltage can work against this)
 
Room temp ?
 
Sounds like the silicon lottery
2019/07/09 07:24:53
Purish
bcavnaugh
Purish
Upgraded to a 2080Ti FTW3 Ultra Hybrid and I can't seem to get it past 2100 mhz even at 1087/1093 mV. If I go up a step to 2115 MHz it'll instantly crash out of any game.
 
Might just be my card isn't the best for overclocking. I'm currently keeping it locked to 1087 mV @ 2070 MHz so I don't get VRel Perfcap. Any suggestions/advice? It'll step down to 2040 MHz @ 1087 mV as it approaches 55C.

Maybe your Overclocking of your CPU and Motherboard Memory is not stable with the RTX Graphics Card


Could be but I stressed my RAM/CPU with P95 small FFT test for 8 hours and didn't get any errors. I've got a 9700k 5 Ghz 1.3V and my RAM is 16 GB @ 3600 CL 15.


2019/07/09 07:28:42
Purish
Cool GTX
Purish
Upgraded to a 2080Ti FTW3 Ultra Hybrid and I can't seem to get it past 2100 mhz even at 1087/1093 mV. If I go up a step to 2115 MHz it'll instantly crash out of any game.
 
Might just be my card isn't the best for overclocking. I'm currently keeping it locked to 1087 mV @ 2070 MHz so I don't get VRel Perfcap. Any suggestions/advice? It'll step down to 2040 MHz @ 1087 mV as it approaches 55C.


 
Remove any CPU, MB & RAM OC and test card
 
How are you "loading the GPU" to check for Max MHz ?

Keep the card Cool as possible - Is the Radiator being used as intake ?  (FYI: max voltage can work against this)
 
Room temp ?
 
Sounds like the silicon lottery


Radiator is being used as exhaust in a NZXT H400i case with push/pull ML120 Pro fans. Right now I'm just loading it with FFXIV under max settings. I might try putting it under load with Time Spy. Can't really use it as intake as I have a Kraken x62 for the CPU as intake on the front. I'll try removing the OC on my RAM/CPU and see what I can do. This card was also an RMA card because first one had horrible whine coming from the pump. This one wasn't much better I ended up doing the magnet trick to get rid of the whine.
 
Edit: Oh and room temp is 21C.
2019/07/09 08:07:52
bcavnaugh
Purish
bcavnaugh
Purish
Upgraded to a 2080Ti FTW3 Ultra Hybrid and I can't seem to get it past 2100 mhz even at 1087/1093 mV. If I go up a step to 2115 MHz it'll instantly crash out of any game.
 
Might just be my card isn't the best for overclocking. I'm currently keeping it locked to 1087 mV @ 2070 MHz so I don't get VRel Perfcap. Any suggestions/advice? It'll step down to 2040 MHz @ 1087 mV as it approaches 55C.

Maybe your Overclocking of your CPU and Motherboard Memory is not stable with the RTX Graphics Card


Could be but I stressed my RAM/CPU with P95 small FFT test for 8 hours and didn't get any errors. I've got a 9700k 5 Ghz 1.3V and my RAM is 16 GB @ 3600 CL 15.

P95 never tests the Memory to GPU so it would not hurt to test your RTX Card with then Set Auto to see if you get any better GPU Performance.
Are you running X8 or X16 on the Graphics Card and in GEN3 Mode?
You could run 3DMarks PCI Express Feature Test to see how the Bandwidth is on your PCIe Slot.
You would need to keep the GPU Temperatures below 40°C to go any higher.  
2019/07/09 08:24:04
Purish
bcavnaugh
Maybe your Overclocking of your CPU and Motherboard Memory is not stable with the RTX Graphics Card.
I would set them back to Auto on both and make sure you have Reset the Bios after you installed your RTX Graphics Card and that the Motherboard Bios is updated.
Make sure you are using 2 Separate PCIe Power Cables from the Power Supply to the Graphics Card.
Your Power Supply maybe to small and even to old as well.


Set both back to auto and it still crashed. Using 2 PCIe power cables. PSU is a 850w Corsair RMX PSU Gold Certified. Bios are updated.
 
bcavnaugh
P95 never tests the Memory to GPU so it would not hurt to test your RTX Card with then Set Auto to see if you get any better GPU Performance.
Are you running X8 or X16 on the Graphics Card and in GEN3 Mode?
You could run 3DMarks PCI Express Feature Test to see how the Bandwidth is on your PCIe Slot.
You would need to keep the GPU Temperatures below 40°C to go any higher. 



Ran the PCI Express test and got these results
PCIe x16 3.0
12.73 Gb/s
 
Reset my CPU/RAM OC and only OC'd the GPU Core not the memory. This was also at 2145 MHz surprised it didn't crash running the test. Feel like I just lost the silicon lottery here, not sure.
2019/07/09 08:43:40
bcavnaugh
Purish
bcavnaugh
Maybe your Overclocking of your CPU and Motherboard Memory is not stable with the RTX Graphics Card.
I would set them back to Auto on both and make sure you have Reset the Bios after you installed your RTX Graphics Card and that the Motherboard Bios is updated.
Make sure you are using 2 Separate PCIe Power Cables from the Power Supply to the Graphics Card.
Your Power Supply maybe to small and even to old as well.


Set both back to auto and it still crashed. Using 2 PCIe power cables. PSU is a 850w Corsair RMX PSU Gold Certified. Bios are updated.
 
bcavnaugh
P95 never tests the Memory to GPU so it would not hurt to test your RTX Card with then Set Auto to see if you get any better GPU Performance.
Are you running X8 or X16 on the Graphics Card and in GEN3 Mode?
You could run 3DMarks PCI Express Feature Test to see how the Bandwidth is on your PCIe Slot.
You would need to keep the GPU Temperatures below 40°C to go any higher. 



Ran the PCI Express test and got these results
PCIe x16 3.0
12.73 Gb/s
 
Reset my CPU/RAM OC and only OC'd the GPU Core not the memory. This was also at 2145 MHz surprised it didn't crash running the test. Feel like I just lost the silicon lottery here, not sure.

Yep then it looks to be more about silicon lottery on your card.
What I mean about the Memory is that Prime95 never touches the GPU Memory and MB Memory and it seems that the RTX Cards under normal OC of the MB Memory are not as stable as the Memory under a GTX Graphics Card.
I have two of them and one 2040MHz and the other 2160MHz-2200MHz
2019/07/09 08:46:53
Purish
Thanks for the help. Sucks because the original card I RMA'd OC'd to 2145MHz without crashing. Should have just kept it and done the magnet trick. Oh well not a huge performance loss either way.
2019/07/09 08:48:36
bcavnaugh
Purish
Thanks for the help. Sucks because the original card I RMA'd OC'd to 2145MHz without crashing. Should have just kept it and done the magnet trick. Oh well not a huge performance loss either way.

If you don't use MSI Afterburner and use PX1 are you seeing the same low MHz?

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