PC Reboots when under stress (I think it's a PSU problem)

[n9ne_x]

Right, so recently, my computer has been rebooting itself when I'm gaming.

Specs:
CPU: AMD FX 8350
GPU: AMD R9 290
RAM: Corsair Vengeance 2x 8GB
Motherboard: Asus Corsshair V Formula-z
PSU: Corsair CX 750w
OS: Win 10

Temps under full load:
CPU: 56-60c
GPU: 70-75c

I used FurMark and Prime 95 to stress test.

I started running stress tests, GPU was fine, running stress test on that didn't shut PC down. Ran a stress test on the CPU and RAM (using 15gbs of RAM, Prime 95) and that didn't shut the PC down either.

HOWEVER, to simulate a game, I put the CPU, RAM and GPU stress tests on at the same time, and then the PC shutdown/rebooted just like it does in games.

Is this a PSU issue...? Where the PSU isn't able to give enough power to the system when it's under full load? Or something else.
If so, what's wrong with the PSU to cause this? As all of my components are under a year old.

[Sanic Abu Sanic]

For anyone looking for a solution, I managed to solve mine by manually adjusting the CPU ratio and Ring ratio in my BIOS overclock settings.

For my i7 4790k it was originally being set as 4ghz for both automatically which I changed to 4.4ghz cpu ratio and 3.0ghz ring ratio.

I just chose the base clock and lowered the ring ratio bit by bit until tests worked stopped crashing the pc.

This stopped my blue screens and instant restarts when playing games/under stress. Prime95 was giving me bluescreens by itself as well but that got fixed too.

Good luck fixing to whoever has this problem!

[_I_]

on intel make sure the bclk is at or lower than 100mhz

also get the latest drivers and update bios
if the board is throttling, it needs to tell windows how to handle it

[Bad 💀 Motha]

a thread from 2015? How are people even finding stuff this old?

[Sanic Abu Sanic]

_I_ の投稿を引用：

on intel make sure the bclk is at or lower than 100mhz

also get the latest drivers and update bios
if the board is throttling, it needs to tell windows how to handle it

Yeah updating drivers/bios should definitely be the first thing to do. Sadly it wasn't enough for me lol

Bad 💀 Motha の投稿を引用：

a thread from 2015? How are people even finding stuff this old?

Haha when you're trying to fix something like this any thread would help. I'm glad I found it tbh

[Bad 💀 Motha]

Sanic Abu Sanic の投稿を引用：

_I_ の投稿を引用：

on intel make sure the bclk is at or lower than 100mhz

also get the latest drivers and update bios
if the board is throttling, it needs to tell windows how to handle it

Yeah updating drivers/bios should definitely be the first thing to do. Sadly it wasn't enough for me lol

Bad 💀 Motha の投稿を引用：

a thread from 2015? How are people even finding stuff this old?

Haha when you're trying to fix something like this any thread would help. I'm glad I found it tbh

Why are you using the old methods of having a base and turbo clock? Just disable speedstep, c-states (such as c1e) and turbo. Set the base to what the Turbo would have been, or higher if proven stable. Set the cpu vcore voltage manually and get this as low as you can possibly get it to be stable at all times. Lock in the RAM using XMP profile.

[Sanic Abu Sanic]

Bad 💀 Motha の投稿を引用：

Sanic Abu Sanic の投稿を引用：

Yeah updating drivers/bios should definitely be the first thing to do. Sadly it wasn't enough for me lol





Haha when you're trying to fix something like this any thread would help. I'm glad I found it tbh

Why are you using the old methods of having a base and turbo clock? Just disable speedstep, c-states (such as c1e) and turbo. Set the base to what the Turbo would have been, or higher if proven stable. Set the cpu vcore voltage manually and get this as low as you can possibly get it to be stable at all times. Lock in the RAM using XMP profile.

Because none of your suggestions worked.

[Bad 💀 Motha]

Sanic Abu Sanic の投稿を引用：

Bad 💀 Motha の投稿を引用：

Why are you using the old methods of having a base and turbo clock? Just disable speedstep, c-states (such as c1e) and turbo. Set the base to what the Turbo would have been, or higher if proven stable. Set the cpu vcore voltage manually and get this as low as you can possibly get it to be stable at all times. Lock in the RAM using XMP profile.

Because none of your suggestions worked.

Sounds like perhaps just a terrible motherboard. Pretty much every PC I've built since Intel Skylake and AMD FX I have used this method so the system runs at the higher OC 24/7