My rig idles at 150-160w (dual cpu). There is nothing in this system which consumes this much power. Only 2 sata ssd + gtx 1050ti at idle.@topmysteries5 All system consuption can hit 600-700 watt but thats not mean you pass the TDP limit. Check between idle and underload power consumption difference or CPU/VRM power sensor readings.
Im getting 100-110w while idle on wall and 250-260 watt while stress tests with single 2696.
250-100 =~ 150watt
This value also very close to my mobo's VRM power out sensor reading. (You can check VRM out with HWinfo/Open hardware monitor...)
My 2686v3 are QS. It runs at x31 (105*31=3.25Ghz on all 36 cores (2 cpus) non AVX2 load). On AVX2 load its x29 (105*29=3.05Ghz). To reduce power consumption, I have disabled 8 cores on each cpu which makes it 20 cores 40 threads, with this multiplier is always x35, making it 3.66ghz on 20 cores stable.
Mine is stable at -0.075v with all cores enabled. With 20 cores (2*10) enabled, anything lower than -0.055v is unstable.how much did you undervolt your CPU? mine won't boot under -0.040V
Mine is stable at -0.075v with all cores enabled. With 20 cores (2*10) enabled, anything lower than -0.055v is unstable.
Friends, seeing that this thread is still going strong, I figured I'd ask if anyone has any new developments on v4 Broadwell CPUs... would love to play with my 2x 2696v4s on an Asus Z10PE-D8 WS... much appreciated Trying to figure out how Toolius got these numbers: https://rog.asus.com/articles/news/asus-z10pe-d8-ws-4-new-global-first-places/
His dual E5-2699v4 are scoring 5815CB in Cinebench R15. He is running 102Mhz BCLK OC. His all 44 cores 88 threads are definitely not working at 3.67Ghz as mentioned in website. Scaling of hyper-threading is roughly 120% of amount of cores. So for 44 cores, scaling will be 52.8. Gets 5815CB @ 102 bclk, then it will be ~5700CB @ 100 bclk (2% performance drop). Now 5700cb/52.8=107.95CB per core (when all cores are under load). This means all core isn't even running close to 3.6Ghz.
Now compare this with dual E5-2686v3 which I have. They score ~ 5300CB @ 105mhz bclk (all 36 cores). Single core score is 141CB (x35*105Mhz=3.67GHz).
Without bclk OC they score ~ 5047CB @ 100mhz bclk (5% performance drop). Scaling for 36 cores is 43.2. So 5047cb/43.2=116.8CB per core (when all cores are under load, they run at x30*100Mhz=3GHz). If all 44 cores of dual E5-2699v4 can run at 3.67Ghz under load, then these will score more than 7000CB, ofcourse they'll eat lots of power and cooling can be issue. 2*18 cores E5 2696v3@3.3Ghz can score 5600CB then 2*22 Broadwell-EP cores will score much higher.
TDP is already bypassed on Haswell-EP xeons. Why would my 2*120 watt dual xeon consume 600-650w power in cinebench, if its not bypassed.have someone look into this yet? maybe it's the key to bypass TDP limit in our xeon.
View attachment 9188
from https://www.anandtech.com/show/13748/the-intel-xeon-w-3175x-review-28-unlocked-cores-2999-usd/3
TDP is already bypassed on Haswell-EP xeons. Why would my 2*120 watt dual xeon consume 600-650w power in cinebench, if its not bypassed.
I don't use HWMonitor. I have already provided screenshot from Corsair link (which can't show fake values) and i have confirmed same from watt-meter plugged in to wall. Temps gets too high during benchmarks and forces fans on my H115 to run at full speed. Will you explain which component is eating extra 400w in my PC ?Power comsumption reported by HWMonitor or software is not equal to what actually pulled from the wall. In this case, my wall meter says 220W when my HWMonitor say 120W and it won't go beyond that because TDP is 120W. Therefore it's software limits that we need to bypass. Otherwise, my Xeon E5-2686 v3 would have turbo to 3.6 GHz on all core without undervolting already. Also, if you take a look at Performance limit reason, it will say "IA: Electrical Design Point/Other (ICCmax, PL4, SVID,DDR, RAPL)" I think that my 8 phases VRM can easily handle 300W easily. Take Xeon E5-2679 v4 for example, it rated for 200W TDP but fits on the same socket and I doubt that i7 6950X fully overclock will definitely pull more power then this 18 cores xeon at much lower clock.
I don't use HWMonitor. I have already provided screenshot from Corsair link (which can't show fake values) and i have confirmed same from watt-meter plugged in to wall. Temps gets too high during benchmarks and forces fans on my H115 to run at full speed. Will you explain which component is eating extra 400w in my PC ?
This rig has only 2*sata SSD and GTX 1050ti at idle.
Why do you want to mod bios file and integrate it with ffs ? Why don't you just use microcode removed modded BIOS and use different efi files with different v offsets. It will save your lots of time. BCLK oc is not worth as it messes up with Lan and RAID cards.Any instructions anywhere on how to mod a bios file myself? I've downloaded MOF's EFI and ffs files, but I'm not really sure what to do with these now. I'd like to test out different offsets - hopefully I've got a good chip.
Also, after modding does it make sense to bump BCLK as well for another +100mhz or is the TDP and/or stability walls already being hit?