Hi everyone,
I just finished my build with a 9900k and a Gigabyte Z390 Aorus PRO motherboard. I did not OC the CPU yet, I did a lot of stress testing using various programs (Intel XTU stress test, Realbench, Prime95 etc) and also ran Memtest for couple of hours and everything seems to be working just fine, no BSODs/freezes whatsoever. I use a manual voltage of 1.23 volts along with a NH-D15S cooler and temps are OK (hit 90 degrees for split seconds while stress testing with AVX), and will not get hotter than 70c in games.
This is where it gets interesting: whenever I use Intel XTU Benchmarking app (and only this, other applications or games that I've tested so far will not cause anything) my mobo generates coil whine (I guess it's the VRM?). It's exactly like in this video:
View: https://www.youtube.com/watch?v=_nb5EBYgTes
. It also seems that the benchmarking generates random restarts or BSODs (like 1 in 10 runs). So what would be the issue? Since I successfully ran prime95 for like 20 hrs, I don't think that my BIOS settings are unstable. Could be that the benchmark app has issues/bugs? It's also the latest version. I am curios to see if someone else had this issue and if they managed to fix it somehow.
Thanks.
PS: i really didn't have time to mess that much with Bios settings, pretty much everything is on default settings except for XMP which I enabled and I manually put CPU vcore to 1.23Volts. I will try today to disable C-states or maybe mess a bit with CPU voltage to see if I still have the issue. And I also remember someone saying that using only one 8 pin (my mobo has 8 pin + 4pin eps) for CPU would cause coil whine. I will try to connect the 4 pin aswell.
I just finished my build with a 9900k and a Gigabyte Z390 Aorus PRO motherboard. I did not OC the CPU yet, I did a lot of stress testing using various programs (Intel XTU stress test, Realbench, Prime95 etc) and also ran Memtest for couple of hours and everything seems to be working just fine, no BSODs/freezes whatsoever. I use a manual voltage of 1.23 volts along with a NH-D15S cooler and temps are OK (hit 90 degrees for split seconds while stress testing with AVX), and will not get hotter than 70c in games.
This is where it gets interesting: whenever I use Intel XTU Benchmarking app (and only this, other applications or games that I've tested so far will not cause anything) my mobo generates coil whine (I guess it's the VRM?). It's exactly like in this video:
. It also seems that the benchmarking generates random restarts or BSODs (like 1 in 10 runs). So what would be the issue? Since I successfully ran prime95 for like 20 hrs, I don't think that my BIOS settings are unstable. Could be that the benchmark app has issues/bugs? It's also the latest version. I am curios to see if someone else had this issue and if they managed to fix it somehow.
Thanks.
PS: i really didn't have time to mess that much with Bios settings, pretty much everything is on default settings except for XMP which I enabled and I manually put CPU vcore to 1.23Volts. I will try today to disable C-states or maybe mess a bit with CPU voltage to see if I still have the issue. And I also remember someone saying that using only one 8 pin (my mobo has 8 pin + 4pin eps) for CPU would cause coil whine. I will try to connect the 4 pin aswell.
Last edited:
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