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Disappointing CPU cooling.

post #1 of 14
Thread Starter 
I'm running an AMD FX-6100 (no OC) in my rig. It's cooled by the Arctic Freezer A30. Based on different reviews the A30 seemed like a pretty good cooler, but my CPU is running at 51C under full load, GPU's not stressed. Looking at the specs I was hoping for much better cooling. Is this temperature normal? If not, what might be bottlenecking it? My own guess would be the only upper case fan that I have is not up to the job of forcing out all the hot air (a relatively inexpensive 140mm Xilence fan, CM Centurion 5 II case) or the fact that cooling air is taken from underneath the CPU cooler, so it might be heated up by the graphics card. But I'm not an expert yet, perhaps someone on OCN knows better? The rear exhaust fan isn't really helping much as the cooler has closed sides and all the hot air only goes up. Intakes are on the side (mainly cooling my dual GTX 500Ti's) and in the front, both 140mm, relatively inexpensive and not too powerful. I'd like all the cooling power I can get before I start overclocking it.
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Joonas
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post #2 of 14
Quote:
Originally Posted by M1kuTheAwesome View Post

I'm running an AMD FX-6100 (no OC) in my rig. It's cooled by the Arctic Freezer A30. Based on different reviews the A30 seemed like a pretty good cooler, but my CPU is running at 51C under full load, GPU's not stressed. Looking at the specs I was hoping for much better cooling. Is this temperature normal? If not, what might be bottlenecking it? My own guess would be the only upper case fan that I have is not up to the job of forcing out all the hot air (a relatively inexpensive 140mm Xilence fan, CM Centurion 5 II case) or the fact that cooling air is taken from underneath the CPU cooler, so it might be heated up by the graphics card. But I'm not an expert yet, perhaps someone on OCN knows better? The rear exhaust fan isn't really helping much as the cooler has closed sides and all the hot air only goes up. Intakes are on the side (mainly cooling my dual GTX 500Ti's) and in the front, both 140mm, relatively inexpensive and not too powerful. I'd like all the cooling power I can get before I start overclocking it.

There are a few things that will help;
1. reapply the thermal paste.
2. try pointing the fan on the cooler so that the air is being pushed through the cooler and into the back exhaust fan.
3. Buy more case fans
4. Try to keep the ambient temperature(room temperature) down as well.

I don't have any experience with the cooler but I do have experience with Bulldozer, and it is not surprising that it is that hot under load. They get very hot with the giant 125W TDP.
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post #3 of 14
Thread Starter 
So I tried running a stress test witout my front panel on, meaning no factory'fitted dust filter in front of the front intake fan and a big hole formed by 3 unused 5,25 inch bays. The temperature dropped by 4 degrees, so I guess removing the dust filter might help. Also, I have thought about replacing my case fans and maybe try to come up with a fitting to fit another intake on my front panel where my unused expansion bays are.

I'll keep this thread updated on my progress. Meanwhile, any further tips are appreciated. smile.gif
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post #4 of 14
I found with my 8120 Bulldozer that if i didn't go into the BIOS and manually set the Vcore to what would actually work on stock clocks, the turbo core would max out the voltage on 1.4125v or similar and send temps soaring. I lowered those down and that helped. When i got into OC'ing i bought a Hyper 212 and i got a stable 4.3Ghz running with around 50degrees on full load.
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post #5 of 14
Some months ago when i made my rig, found zalmans cnps, best choice for the price.
Keep my cpu at 32 celsius (90f).
and obviously dependent of your room temperature too.
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post #6 of 14
Quote:
Originally Posted by Buxty View Post

I found with my 8120 Bulldozer that if i didn't go into the BIOS and manually set the Vcore to what would actually work on stock clocks, the turbo core would max out the voltage on 1.4125v or similar and send temps soaring. I lowered those down and that helped. When i got into OC'ing i bought a Hyper 212 and i got a stable 4.3Ghz running with around 50degrees on full load.

I also had the same problem with my 4170. If I didn't set the Vcore to the correct amount, it would pump out 1.525v and I would hit 60C while playing games. I ended up buying a Noctua NH-D14 for my FX chips(had a 4170, moved up to a 6300) and with my 4170 I got a max stable overclock of 5.2ghz@ 1.525V Load temp; 65C. But I ran a 4.9Ghz 24/7 @ 1.4v Load 55C, always found it strange that in order for me to get to 5ghz I needed to increase the voltage so much(1.4-1.525v) and then I could still get the extra 200mhz without touching it again. confused.gif

Anyway, keep us posted! biggrin.gif
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post #7 of 14
i'm not an AMD person, but is 51C under FULL LOAD with relatively cheap cooler and a cheap case ACTUALLY considered a bad temp? i was under the impression that 60C is perfectly fine for that chip.

if the temp really bothers you, then maybe you ought to look into better case/cooler combo...

if you are only spending the $ to buy a Toyota..... don't expect Ferrari performance...
post #8 of 14
Quote:
Originally Posted by psyclum View Post

i'm not an AMD person, but is 51C under FULL LOAD with relatively cheap cooler and a cheap case ACTUALLY considered a bad temp? i was under the impression that 60C is perfectly fine for that chip.

if the temp really bothers you, then maybe you ought to look into better case/cooler combo...

if you are only spending the $ to buy a Toyota..... don't expect Ferrari performance...

Fair comment, althogh the coolers are great for the money wouldn't recommend anything else for 20GBP. I'm more complaining that out of the factory some boards jump up the voltage needlessly which made the stock cooler unable to handle it
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post #9 of 14
i'm not saying the A30 cooler is bad, i'm saying the FX-6100 is a 95 watt TDP chip. if a cooler can keep a 95w chip at 51C under FULL LOAD... is that ACTUALLY bad temp? i know you cant compare intel temps to AMD temps, but to me, 51C doesn't sound that bad especially considering his case isn't providing the greatest airflow in the world.

it's been a LONG time since i played with AMD so I cant say if 51C is a bad temp or not, but it doesn't sound that bad all things considered.
post #10 of 14
Thread Starter 
Quote:
Originally Posted by Buxty View Post

I found with my 8120 Bulldozer that if i didn't go into the BIOS and manually set the Vcore to what would actually work on stock clocks, the turbo core would max out the voltage on 1.4125v or similar and send temps soaring. I lowered those down and that helped. When i got into OC'ing i bought a Hyper 212 and i got a stable 4.3Ghz running with around 50degrees on full load.

Yo might be onto something. Turbo core does seem to be shooting my voltage up past 1.35 volts sometimes. It's a trip to the BIOS for me.

Edit: Not a dramatic change, just a few degrees lower. But every bit helps, I guess.
Edited by M1kuTheAwesome - 7/9/13 at 2:24am
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Joonas
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