Question Stuttery mess on High End PC

[Dawid Tr]

Hi there I recently build my own PC and it turns out that I have strange stutters and with that low performance as well.
When I boot my PC motherboard shows CPU led for 5 sec and then the BOOT and VGA leds last till the Windows is loaded which I assume is alright since they go off.
While my PC is idle at Windows my temperatures for CPU are 36 C ( 96 F ) degrees while Graphics card is rising from 26 C ( 78 F ) to same temperature as CPU.

here is a benchmark of a mess

https://imgur.com/a/BIvnN1r

View: https://imgur.com/a/BIvnN1r


Things that I tried:

1. Updating BIOS
2. Updating all drivers
3. Re applying thermal paste
4. Swaping ram sticks

Here are the specs if needed:
Motherboard: NZXT N7 B550
CPU: AMD Ryzen 9 5900X
RAM: Corsair Vengeance 32GB (2x16GB) DDR4 3600MHz C16
GPU: Asus TUF Gaming RTX 3080 12GB
Storage: Western Digital Black SN750 4TB M2 NVMe
PSU: Uneec 850W


I really don't know what's causing this, have been fighting that problem for few months from now on.

 

[punkncat]

PSU: Uneec 850W

Eek!

 

[Jason H.]

Hi there I recently build my own PC and it turns out that I have strange stutters and with that low performance as well.
When I boot my PC motherboard shows CPU led for 5 sec and then the BOOT and VGA leds last till the Windows is loaded which I assume is alright since they go off.
While my PC is idle at Windows my temperatures for CPU are 36 C ( 96 F ) degrees while Graphics card is rising from 26 C ( 78 F ) to same temperature as CPU.

here is a benchmark of a mess

https://imgur.com/a/BIvnN1r

View: https://imgur.com/a/BIvnN1r


Things that I tried:

1. Updating BIOS
2. Updating all drivers
3. Re applying thermal paste
4. Swaping ram sticks

Here are the specs if needed:
Motherboard: NZXT N7 B550
CPU: AMD Ryzen 9 5900X
RAM: Corsair Vengeance 32GB (2x16GB) DDR4 3600MHz C16
GPU: Asus TUF Gaming RTX 3080 12GB
Storage: Western Digital Black SN750 4TB M2 NVMe
PSU: Uneec 850W


I really don't know what's causing this, have been fighting that problem for few months from now on.

Well for starters.. that PSU is trash. You could be getting a insufficient amount of power to the cpu/gpu depending on the voltages that are coming out of that PSU.

Also, is PBO enabled for the CPU? Any overclock? Did you set your XMP profile for the ram?

 

[DSzymborski]

The PSU isn't likely to cause stutters, but this is such dodgy fake junk -- 80 Plus has never heard of this PSU despite its 80 Plus sticker -- that it's dangerous to even diagnose this PC until the garbage is removed.

 

[Dawid Tr]

Well for starters.. that PSU is trash. You could be getting a insufficient amount of power to the cpu/gpu depending on the voltages that are coming out of that PSU.

Also, is PBO enabled for the CPU? Any overclock? Did you set your XMP profile for the ram?

I don't run overcloking as it gets mad with temperatures and yes I did set my XMP profile.

 

[Dawid Tr]

Alright I try with branded PSU then

 

[Dawid Tr]

Would this be a good choice by choosing this one?
https://www.ebay.co.uk/itm/28502667...DpKIM9NGfmHnqEdCHIC/my82fLsD|tkp:BFBM8OOQ-c9h

 

[Jason H.]

Would this be a good choice by choosing this one?
https://www.ebay.co.uk/itm/285026679511?hash=item425ce9fad7:g:Ef4AAOSw7V1jZStb&amdata=enc:AQAHAAAA4FvWT8nRrAC7E3UykT09tnne1rNKGNzjLGU3JpybUnL/naopspCfpmOgF9RD/ruanKIpCkMNeKby9sTE4WW/hu7hxWvlxfrylZhbkyX1GDiNVYLpnI09EVfRM2ix90Q3KeU01wnCxy3iAvk6RD4xNr0HklCiE5s4v9+tgEGlk4X5oRx24vU4rHrHQ583OGW4B7atXaeyVSRqprelMIy/WojEtwpZjofOjm85N0CQOj+pqPWXrkZnL725rabTOYewi2VjLs9FDj10NSCNDpKIM9NGfmHnqEdCHIC/my82fLsD|tkp:BFBM8OOQ-c9h

I dont know much about that specific PSU but it looks like it would be 50x better than the one you have, and its a name brand.

Get it.

 

[Jason H.]

The PSU isn't likely to cause stutters, but this is such dodgy fake junk -- 80 Plus has never heard of this PSU despite its 80 Plus sticker -- that it's dangerous to even diagnose this PC until the garbage is removed.

I mean if the cpu isnt getting enough power, or unreliable power, I would assume it would not work at 100% capacity which would in turn cause some type of performance issue.

Whether the issue shows itself as stutters, crashes, etc .. Im sure there would still be a noticeable problem.