vapinghanso
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For anyone using my setup, I was curious to find more detailed information how to squeeze maximum performance out of a z490 dark kingpin motherboard, 3090 ftw3 ultra, and binned, delidded 10900k from siliconlottery. These are the best in slot components as of this date. For me, price wasn’t really a factor in this build... for better or for worse.
Maybe this information can help someone out there.
That 10900K can pull 350W under a heavy OC, perhaps more if you have a good chip that can handle it. Peak will be a bit higher probably, so you could add on another 50W to CPU to be safe. Total peak CPU ~400W.
You can hit peaks (transients) of around 575W with the 3090 (according to the transient testing I’ve seen). Now, that is only for 1ms, but a high-quality PSU with robust fast-acting OCP (over current protection) might trip when you hit those spikes.
Total, you’re looking at an absolute peak for CPU + GPU of 975W. Now, that’s when the PSU is young. As PSUs age, you should plan on a bit less robustness – I’ve had many I’ve had to retire because the rails get weak after 3 or 4 years, particularly high-wattage models. Best to have a buffer there.
So, all that is to say, you might as well go 1250W. If you have a lot of money in that rig, and power is like the blood of the system. If the blood goes bad, everything else does, too. At least that’s how I think.
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thefinalhope
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/28 23:11:32
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Thanks for this - using a 1200w power supply myself so it should be fine!
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Bcassiman
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/28 23:24:54
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z999z3mystorys
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/28 23:51:59
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Makes me wonder if even a 1600w PSU could handle 3090 SLI, I know the most extreme set ups would have 2 power supplies
575x2 for 1150w for the GPU's peak, +400w would be 1550w, not counting everything else it has to supply.
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ccoyne83
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 00:03:06
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PSU makers are certainly happy
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kevinc313
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 05:53:07
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Are you really trying to convince yourself that it's OK to return the 1600w T2 you have on hand and just use the 1000w T2 you also a have on hand? Or vice versa? We told you in the other thread to keep the 1600w T2 and gave multiple other options. The 1000W T2 is NOT enough if you're going to be pushing OC's all the time. Not because not enough power, but because it's going to be operating at 75%+ often and taking large power swings where it doesn't perform as well as a larger supply.
post edited by kevinc313 - 2020/09/29 06:35:34
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ehabash1
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 06:30:27
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I bought the superNOVA 1200 platinum because i simply didn't want to have to worry about this situation. You didnt even mention efficiency issues... thats a thing and ppl forget. I have 13 fans and 2 pumps... they pull power as well
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ehabash1
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 06:35:51
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A lot of ppl are running 650-750watt psus with the 3080 and 3090. Then they cry out and say why oh why isnt my card boosting higher?
You want it to suck more power? you should be happy it's running at all.. We've got ppl on this very forum saying their ftw3 is pulling 460watts in furmark. We have confirmation of other models pulling even more power like the asus strix. And you have people on reddit saying "oh yea that 700 watt psu is plenty man"
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AHowes
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 06:39:31
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:) I've got 32 fans. Hurt the bank some. And 4 pumps. 2080TI Kingpin and 9900k creative sound card and a hand full of drives.. think it maxes out at around. Maxes out at around 700watts during 3dmark benches. Seems low considering the kingpin can touch around 500 watts overclocked. Thinking I need to slap the Kill-A-Watt on the plug and test again as it's been over a year prob. Looks like 720ish watts max during 3dmark firestrike extreme. Max GPU watts looks like 400watts for firestrike extreme.
post edited by AHowes - 2020/09/29 08:25:10
Intel i9 9900K @ 5.2Ghz Single HUGE Custom Water Loop. Asus Z390 ROG Extreme XI MB G.Skill Trident Z 32GB (4x8GB) 4266MHz DDR4 EVGA 2080ti K|NGP|N w/ Hydro Copper block. 34" Dell Alienware AW3418DW 1440 Ultra Wide GSync Monitor Thermaltake Core P7 Modded w/ 2x EK Dual D5 pump top,2 x EK XE 480 2X 360 rads.1 Corsair 520 Rad.
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Mithrandir8
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 13:40:51
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vapinghanso
For anyone using my setup, I was curious to find more detailed information how to squeeze maximum performance out of a z490 dark kingpin motherboard, 3090 ftw3 ultra, and binned, delidded 10900k from siliconlottery. These are the best in slot components as of this date. For me, price wasn’t really a factor in this build... for better or for worse.
Maybe this information can help someone out there.
That 10900K can pull 350W under a heavy OC, perhaps more if you have a good chip that can handle it. Peak will be a bit higher probably, so you could add on another 50W to CPU to be safe. Total peak CPU ~400W.
You can hit peaks (transients) of around 575W with the 3090 (according to the transient testing I’ve seen). Now, that is only for 1ms, but a high-quality PSU with robust fast-acting OCP (over current protection) might trip when you hit those spikes.
Total, you’re looking at an absolute peak for CPU + GPU of 975W. Now, that’s when the PSU is young. As PSUs age, you should plan on a bit less robustness – I’ve had many I’ve had to retire because the rails get weak after 3 or 4 years, particularly high-wattage models. Best to have a buffer there.
So, all that is to say, you might as well go 1250W. If you have a lot of money in that rig, and power is like the blood of the system. If the blood goes bad, everything else does, too. At least that’s how I think.
Any chance you have a kill-a-watt that you could hook up to this rig and measure actual consumption? These values are worst-case values and I agree that you should plan for them, but I'm curious what a typical load draw would look like under heavy OC.
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thefinalhope
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 14:58:50
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ccoyne83
PSU makers are certainly happy
Lol. This.
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komicaaa
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 15:28:00
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7820X No oc + 3090 ftw3 ultra @ OC 90mhz + 4SSD + 1 HDD + 6 fans
When I run Powermax, it reach highest on 947W, and the 95% time on 840W
so the 1000W is obvious not enough for up to 8 cores or HEDT
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UnusualAttitude
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Re: 10900K and 3090 ftw3 ultra Watts
2020/09/29 21:51:17
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I’m going to try to do a 3090 and 10900k on a custom dual 240mm loop in an ncase m1 with a 800w SFX-L psu. Wish me luck!
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