F5F Stay Refreshed Hardware Desktop Issue with Dual Epyc 7601 on Windows 10

Issue with Dual Epyc 7601 on Windows 10

Issue with Dual Epyc 7601 on Windows 10

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Ward12
Posting Freak
895
05-08-2021, 06:29 AM
#1
Hey there, I've recently moved from my i7 11700k to a dual Epyc 7601 because I was frequently reaching full CPU usage. At first it worked fine, but now something odd started happening. The CPU load appears to be limited at around 10%, making even simple tasks like web browsing feel slow. I checked some forums mentioning CorePrio, but it didn’t help much. Thinking about a Windows scheduling problem, I wanted to test if all cores could actually run at 100%. Using Prime95 SmallFFTs surprised me—it actually improved performance. I’ve never seen anything like this before. I was hoping everything would slow down and focus on p95, but I could still play OBS, run games, and maintain better performance without stressing the system. I really value your advice and would appreciate any suggestions, especially regarding BIOS settings or system info. OS: Win 10 for Workstations (latest update 10.0.19045). 2x Epyc 7601, 32 cores, 256GB ECC RAM, Supermicro H11DSi-NT Rev1.0, RTX 3080ti.
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Ward12
05-08-2021, 06:29 AM #1

Hey there, I've recently moved from my i7 11700k to a dual Epyc 7601 because I was frequently reaching full CPU usage. At first it worked fine, but now something odd started happening. The CPU load appears to be limited at around 10%, making even simple tasks like web browsing feel slow. I checked some forums mentioning CorePrio, but it didn’t help much. Thinking about a Windows scheduling problem, I wanted to test if all cores could actually run at 100%. Using Prime95 SmallFFTs surprised me—it actually improved performance. I’ve never seen anything like this before. I was hoping everything would slow down and focus on p95, but I could still play OBS, run games, and maintain better performance without stressing the system. I really value your advice and would appreciate any suggestions, especially regarding BIOS settings or system info. OS: Win 10 for Workstations (latest update 10.0.19045). 2x Epyc 7601, 32 cores, 256GB ECC RAM, Supermicro H11DSi-NT Rev1.0, RTX 3080ti.

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lebossdu51
Member
61
05-08-2021, 10:58 AM
#2
Checked if power profiles were activated in the Supermicro BIOS. Verified whether a fresh Windows installation was performed or if the setup came from an Intel system.
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lebossdu51
05-08-2021, 10:58 AM #2

Checked if power profiles were activated in the Supermicro BIOS. Verified whether a fresh Windows installation was performed or if the setup came from an Intel system.

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Pizza_Dude_
Member
52
05-08-2021, 11:52 AM
#3
I have switched on the Performance Profile, and yes it's a fresh install.
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Pizza_Dude_
05-08-2021, 11:52 AM #3

I have switched on the Performance Profile, and yes it's a fresh install.

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AlexRoosio
Member
204
05-08-2021, 01:06 PM
#4
No noticeable irregularities in CPU speed during light tasks. Clock speeds remain stable and within expected ranges for web browsing.
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AlexRoosio
05-08-2021, 01:06 PM #4

No noticeable irregularities in CPU speed during light tasks. Clock speeds remain stable and within expected ranges for web browsing.

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Liwings
Junior Member
8
05-09-2021, 04:40 PM
#5
Nothing really, but i haven't checked with anything but taskmanager. One thing to note is, that i tried installing the Chip set Drivers for Windows Server 2016 and CPU load was pinned at 100%, even with nothing but the OS running. Installing the 2012 R2 ones worked fine for a while, but alas...
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Liwings
05-09-2021, 04:40 PM #5

Nothing really, but i haven't checked with anything but taskmanager. One thing to note is, that i tried installing the Chip set Drivers for Windows Server 2016 and CPU load was pinned at 100%, even with nothing but the OS running. Installing the 2012 R2 ones worked fine for a while, but alas...

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Ivy21984242
Junior Member
4
05-13-2021, 10:47 AM
#6
It wouldn't be wise to mix and match drivers, but troubleshooting is essential. Have you attempted a simple Ubuntu installation? If Linux functions properly, the issue likely lies with Windows settings rather than the BIOS.
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Ivy21984242
05-13-2021, 10:47 AM #6

It wouldn't be wise to mix and match drivers, but troubleshooting is essential. Have you attempted a simple Ubuntu installation? If Linux functions properly, the issue likely lies with Windows settings rather than the BIOS.

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Miicrafter_HD
Junior Member
4
05-13-2021, 01:50 PM
#7
I haven't tried yet, though it worked before. It seems like the BIOS might be having issues with some settings, but I'm going to test it now.
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Miicrafter_HD
05-13-2021, 01:50 PM #7

I haven't tried yet, though it worked before. It seems like the BIOS might be having issues with some settings, but I'm going to test it now.

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beschteLars
Member
221
05-13-2021, 05:21 PM
#8
I overlooked that the Server 2016 update was rolled back and replaced with a new setup; the 2012 R2 model remains the sole version running here.
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beschteLars
05-13-2021, 05:21 PM #8

I overlooked that the Server 2016 update was rolled back and replaced with a new setup; the 2012 R2 model remains the sole version running here.

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imTri
Posting Freak
786
05-18-2021, 08:32 AM
#9
The core setup of Windows 10 Workstation seems to cause issues consistently.
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imTri
05-18-2021, 08:32 AM #9

The core setup of Windows 10 Workstation seems to cause issues consistently.

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Skyrocker
Member
55
06-04-2021, 05:48 PM
#10
Initially it didn’t appear, but after about a week these signs emerged. I then updated the drivers, but the issue remained unchanged. My understanding of the problem was unclear.
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Skyrocker
06-04-2021, 05:48 PM #10

Initially it didn’t appear, but after about a week these signs emerged. I then updated the drivers, but the issue remained unchanged. My understanding of the problem was unclear.

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