Looking for assistance to adjust your 7820x overclock settings?
Looking for assistance to adjust your 7820x overclock settings?
Hey guys, so recently I upgraded from a 7740x to a 7820x and I SERIOUSLY couldn't be happier. I use my pc mostly to game but I do also record while gaming, as well as do video/photo editing and rendering so finally having the full use of my mobo as well as the added power of 8c/16t CPU was a welcome experience.
My setup:
Roswil full size ATX -Tower
Aorus x299 gaming 3 extreme-Mobo
Aorus 1080ti extreme gaming- GPU
7820x -8 core 16 thread -CPU
Thermo grizzly krayonout for CPU to cooler -Thermo paste
Corsair case fans- 8 in total
Corsair RM750x -PSU
Corsair DDR4 2x8gb RGB -RAM
Corsair H100i-4x corsair high performance fans in push/pull-Cooler
Samsung 256gb SSD Samsung EVO PRO - BOOT
Samsung 500gb EVO SSD -Games only
WD-Blue 1T HDD- Vids/Pics/Backup
Windows 10 PRO -OS
Running latest F6 bios
Currently I got the CPU to 4.9ghz fairly easy on all 8 cores, the voltage is currently 1.29v and it's stable as a rock. My max temps are 80-88c under full load. I'm very happy with this overclock as many ppl can't get passed 4.7-4.8 with this CPU. My idle temps are around 18-22c even immediately after finishing a long stress which is just awesome. My case and AIO offers great cooling because of the way I have it set up.
VRM temps never go below 30 and ever get higher than about 55c and even 55c is pushing it cuz typically my vrm stays in the 38-48c range which is great.
My current benchmark from Cinebench R15 is between 2002 and 2037. My current XTU benchmark is 2790-2800.
My concerns: As you guys prolly saw, my PSU is a little under powered for the task? Do you guys think the rm750x is enough power for this monster CPU and GPU both being overclocked to the max? Currently my CPU under full stress test load pulls around 250-260watts alone, I havnt checked my gpu in awhile but it is overclocked very high as well and I'm assuming it's pulling 200-300watts as well... that's roughly 600watts give or take not including my ram, mobo, drives, fans, pci wifi card and other extras.
What PSU do you guys advise me to jump up to? I was thinking the rm850x or the rm1000x to be my next upgrade.
Now about fine tuning my overclock: Iv always been told that #1 importance in performance is CPU frequency and getting it as high as possible before adjusting ram, cache or anything else.. specially for better gaming performance which gaming is what I do the most.. currently being at 4.9ghz I don't have much more head room to increase my ram from stock bios settings.. I also don't have much room for increasing my cache.. so do you guys think it would be more benifitial to stay where I am at, at stock ram and stock cache but leaving my CPU at 4.9ghz.. or would i gain more performance if I backed it down to 4.8ghz and this way I know for a fact I can get my ram to 3000mhz instead of default.. as well as I can get my stock cache freq. to 3.0ghz instead of the stock freq.
What do you guys think I should do? Which option would give me the best performance? I know increasing my ram speeds and cache will increase my benchmark scores but will I see any better real world or gaming performance gain? Cuz if not then maybe I'm better off just leaving it at 4.9ghz.
Thanks for your help in advance!
RM750X is a solid power supply, though you're likely drawing quite a bit of current, particularly during heavy overclocking. Upgrading to an RM850X would be a wise move.
If your RAM reaches 3000Mhz at 4.8GHz, go for it. The jump from 4.8 to 4.9 GHz is negligible in practice, but the leap from 2133MHz to 3000MHz on RAM offers a substantial improvement. Cache has minimal impact, so keep it as is.
RM750X is a solid power supply, though you're likely drawing quite a bit of current, particularly with heavy overclocking. Upgrading to an RM850X would be a wise move.
If you manage to hit 3000Mhz on your RAM by boosting it to 4.8GHz, go for it. The jump from 4.8 to 4.9 GHz isn't noticeable in everyday use, but the leap from 2133MHz to 3000MHz on RAM offers a substantial improvement. Cache has minimal impact, so keep it as is.
Your rm750x is an excellent PSU, featuring built-in caps on the CPU power cable, 24-pin M.2 slot, and GPU cables too. I chose this specific PSU because I anticipated needing a substantial amount of power for my 7740x, and I didn’t realize just how much more power would be required when upgrading to models like the 7820x.
So you’re suggesting lowering my CPU speed to 4.8ghz and increasing my RAM speed to 3000MHz? And that I should notice better performance from this change compared to leaving the RAM at its default and the CPU running at 4.9ghz?
This is precisely why I reached out to you for your opinion, as I wasn’t entirely sure which adjustment would provide the greatest practical advantage. Thank you very much for your response.
Regarding the PSU itself, I experienced complete shutdowns whenever I increased the cache frequency to 2.8ghz–3.0ghz. This caused my PC to shut down and restart repeatedly during the XTU benchmark. While raising the cache does increase CPU load and power consumption, the fact that it led to shutdowns suggests my PSU might be exceeding its current protection limits. My temperatures were in the 80s, and the VRM temps stayed around the 40s. Once I lowered the cache back to its default setting, the shutdowns ceased.
Do you think this indicates I was approaching the PSU’s power limit? Increasing the cache didn’t seem to cause issues, so I’m okay with keeping it at the default for now. However, if I’m very near the PSU’s maximum capacity, I might consider upgrading to something like the RM850x.
Do you know of any other factors that could have triggered these shutdowns at the start of XTU? I ran several tests last night and narrowed it down to the cache increase being the main culprit.
Any guidance would be greatly appreciated! Thanks again!
So as I mentioned, this issue of the pc automatically shutting down and rebooting only occurs when my cache is increased, and just during benchmarking with XTU. Cinebench and realbench don't trigger it.
I think it's because XTU runs a lot of AVX instructions, so what I believe is happening is that XTU is pushing the CPU to work extremely hard—especially when the cache is boosted—that pushes it well above the normal 250 watts it usually draws. This could be causing the PSU to exceed its limits and trigger the overcurrent protection.
That's my theory. But if a few others can share their thoughts, it would help a lot. It would be comforting to know there are others who agree or think something else might be behind this problem.