Weird temps on FX 8350

[nicopucho]

hello i have an fx 8350 with stock fan and been trying to overclock(wthout increasing voltage) for a while but i get really high temps, 65+ ºC in just seconds with Prime95. i tried to reduce the voltage by 0.08v and i was still getting really high temps on prime95 and CPU-Z stress test.

i was thinking about buying a better cooler but i just noticed that on idle i am getting around 18 ºC which i think is pretty low, is it possible that msi afterburner isn't reading the temp properly?
i tried HWMonitor but sometimes it gets stuck and doesn't update the temps

temperature while gaming is fine even in cpu intensive games and low resolution

i also noticed those weird spikes where the cpu temp increases like 5 and then comes down instantly



EDIT: Msi Afterburner and HWMonitor report same high temps
i already changed thermal paste
my pc case is opened

1 minute of Prime-95: https://imgur.com/a/R2HanLp
my CPU: https://imgur.com/a/DPWPlnf
Motherboard: Asus sabertooth 990fx r2.0

 

[justin.m.beauvais]

Well, AMD does have a history of having hard to read temps. My advice is to try a different program like HWMonitor or AMD's overclocking utility (whatever it is called right now).

It could also be that the temp sensor on your specific motherboard is failing, which happens sometimes.

 

[Snipergod87]

Use AMD's own utility to see the thermal margin, other programs can't read it right.

 

[scout_03]

use hwinfo on sensor so you could made a log of it and if temp spikes up and down check if coller is well seated and not jiggling on cpu and the fan spin up as temp raise also a repaste could help .

 

[nicopucho]

this happened in less than a minute of prime 95
https://imgur.com/a/R2HanLp

i'll try the amd utility now

 

[scout_03]

you fans have to speed up to keep cpu cold so repaste and check it .

 

[WildCard999]

[strike]Use AMD Ryzen Master (It'll work with FX CPU's).
https://www.amd.com/en/technologies/ryzen-master

The program should be much more accurate over other non AMD utilities.[/strike]

 

[nicopucho]

i would also like to add that i changed the thermal paste twice this week

 

[WildCard999]

Also MSI Afterburner is for your GPU, not CPU, that's why it shows your GPU and driver version.

 

[nicopucho]

Also MSI Afterburner is for your GPU, not CPU, that's why it shows your GPU and driver version.

it shows cpu usage and temps too

 

[mgallo848]

More importantly, you really shouldn't be trying to overclock with the FX stock fans. Honestly, they are garbage.

 

[madmatt30]

^ what he said - the twin heatpiped cooler that comes with the 8350 is barely enough to run it at stock for prolonged periods.

 

[nicopucho]

Use AMD Ryzen Master (It'll work with FX CPU's).
https://www.amd.com/en/technologies/ryzen-master

The program should be much more accurate over other non AMD utilities.

More importantly, you really shouldn't be trying to overclock with the FX stock fans. Honestly, they are garbage.

it says unsupported CPU when i try to open it

 

[madmatt30]

^ ryzen master doesn't work with am3.

You need to use amd overdrive

https://www.amd.com/en/technologies/amd-overdrive

 

[WildCard999]

My bad, I thought Ryzen Master took over for Overdrive.

 

[nicopucho]

my cpu is idling at around 12 ºC now, i have a vcore offset of -.08 and all fans are running at full speed(2 on the side, 1 on the back, 1 on the front and the cpu fan) but when i stress test it reaches 65 ºC after 2 or 3 minutes, with a voltage this low shouldn't i get better temps?
i just changed the thermal paste and update the bios but nothing seems to work, amd overdrive, msi afterburner and hwMonitor show the same temp, also when i touch the vrm it is quite hot

 

[nicopucho]

i think i just found the solution! i set the "cpu LLC" and "cpu/nb LLC" both to HIGH and now my cpu temp is stable at 55ºC while stressing with prime95

[strike]i ll try setting it as high as possible and see if it reduces the temperatures even further[/strike]

 

[nicopucho]

setting the LLC manually allowed me to get the voltage i wanted and reduced the temps