How to set up GA-990XA-UD3 motherboard BIOS to reduce CPU heating

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KiriKaeshi

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Feb 11, 2015
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Hi,

I have an AMD GA-990XA-UD3 motherboard with FX-6300 CPU installed (both are 3 months old). Recently I upgraded GPU to amd r9 270 as my old one was a bottleneck. I noticed overall great performace boost, but with strange performance drops while under load. I started monitoring CPU and I noticed some cores periodically, and for a short period of time, start to shut down (drop clock to 1400mHz) while CPU goes to 78ºC.

From what I've read, FX CPU's should be allowed to get to 62ºC max. I'll be getting a new cooler for it soon (I've been running it with stock until now), but I'd like to know if there is something I can do in BIOS to reduce CPU heat? (On a sidenote: ambient temperature is 20ºC, I have both sides of the case open and I've cleaned the dust from the heat sink few days ago)

I've read suggestion that auto Vcore setting can cause the CPU to over heat (and that's what it was set in my BIOS by default). What should I set it to? Normal?
How about Core performance boost, Cool and quiet? Perhaps even disable CPU fan speed control to allow it to run at max speed all the time?

I'd appreciate any tips before I go on experimenting with BIOS on my own.

Thanks!
 
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junkeymonkey

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you may of had tis issue all along using the stock cooler - thing is to me I never use the paste that comes on them [ most times its got a pad looking thing on it from the factory ] you may do some good getting some real thermal paste and re apply the stock cooler ..

but if your doing any overclocking on the stock cooler there just meant to work at stock and cool at that ...
 
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KiriKaeshi

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Feb 11, 2015
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I may had it, true, although I tried monitoring CPU once through task manager and it seemed to me that it never gets to a full load (clocks would go to 3000mHz, and CPU is 3500mhz with turbo clock of 4100mHz) due to a GPU bottleneck. I may be mistaken though...

I forgot to mention that I haven't done any overclocking, I left everything on default. I only have graphics overdrive turned on in catalyst control center.

I'll be buying a new cooler and reapply thermal paste, but I'd like to try to do something in BIOS before that, if possible.

Thanks!

 
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junkeymonkey

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what about your fan profiles ?? do your fan ramp up or set at a high enough speed to maintain cooling ?? cooler now not chocked with dust ??

I use amd chips and stock coolers and so far for me it comes down to - goofed cooler install - fan may not be doing right - coolers fins clogged with dust and needs blowing out /cleaning .

when I use the stock coolers I remove that ''crap'' they put on the cooler as thermal paste and apply known good stuff like artic silver or = to ..

to me that 270 card should not make that cpu flinch in any way and should work together just fine
 
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KiriKaeshi

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Sorry for not being too clear. My old GPU was causing a bottleneck so I upgraded to an r9 270.

I cleaned fins few days ago, but I'll check if there's dust left in the sink. I don't like messing with thermal paste, but I guess the best option for now would be to reapply thermal paste. I can't find arctic silver in online stores, would this one serve: TG2 CL-O0028 THERMALTAKE?

And how do I set fan speed? Now it goes to 3400rpm under load. I was thinking about shutting down fan speed control in BIOS. Would that force it to run at full speed at all times? Should I try it?

 
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junkeymonkey

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I'm sure that paste is fine - fan speeds should be in the bios check your manual on that - seems to me 3400 is at the max anyway .at that speed I should be cooling well enough..

applying the new paste is not so hard on amd stock cooler just unlatch the cooler and slightly/lightly twist and lift - clean all old paste and residue - apply about a just smaller then pea sized drop of new paste - set cooler squarely back on chip and re latch down..

http://www.pcworld.com/article/246577/how_to_install_a_cpu_cooler.html

heres a tip if you decide to spread the paste stay just off the chips edge cause when you compress the cooler on to the chip you don't want it to run over the sides and ooze into something it don't need to . don't over do it [I don't spread I just put the drop of paste and let the cooler mash it in place ??]


 
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KiriKaeshi

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Thanks, I'll try it as soon as possible!
 
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KiriKaeshi

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I've been using hwinfo so far and I just tried core temp. I ran prime 95 and temperature started rising; once it hit 77ºC core clocks started to drop to 1400mHz. So the results seem to match.

I haven't tried an old GPU again, but I remembered some odd performance issues I attributed to slow GPU at the time. However, now I'm quite certain it was CPU overheating. I didn't even know a new card can affect CPU...
 
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