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High temp On M5a99fx pro ????? WARNING

post #1 of 17
Thread Starter 
Hi guy seriously i think we underestimated your amd fx chip power comsumption effect on motherboard


I was stress testing with occt linpack and using my new infrared thermometer..



I can confirm it well calibrated because it show 60c behind the mobo at the cpu and the cpu report 59c


The pic is behind the vrm.... Probably the option here is when vrm throttle and if im reaching that temp with a fx 6300 on 1.45volt 4.5ghz what you think you reach with a 8350? ahah gonna be sick











Edited by bonami2 - 4/8/14 at 5:08pm
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post #2 of 17
OK, I used my infrared thermometer on the resistor youre spotting in the second picture and youre showing 65.8C.

My M5A99X EVO R2.0 is the same layout in that area as the M5A99FX PRO 2.0.
While running prime95 small FFTs for about a half an hour at my 4.9ghz, I only get a maximum temp of around 37C, about the same as the vrm heatsink. I do have a fan on the vrms that is also blowing air into the area of that resistor.

In the area, my hottest temp was the NB at 47C, which is somewhat odd as the vrm and nb heatsinks are linked by a heatpipe.

Ill try to get the backside temps later, but I have a 92mm fan on it. I wish this was posted this morning, as I had the back cover off then checking that 92mm fan. Im going to replace it with another one even though its running fine and is quiet. Its been on there about 10 years running @ 7volts. I think Ill get a PWM controlled one for more air volume at high mhz and I can use it on the cpu_opt header. A 120mm would be a bit too large for me.
Quote:
because i have a poor 5 core that fail always
Yeah, when prime95 fails in testing for me its generally the 5th core first, but not necessary 100% of the time.
Edited by cpmee - 4/8/14 at 3:02pm
    
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post #3 of 17
Thread Starter 
i think im gonna do a hole for a 120mm fan with my dremel
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post #4 of 17
Thread Starter 
Safe temp at 4.0ghz 1.3 v


But the high temp are easily fixed be adding a fan i just tested my other board without vrm heatsink just adding a fan lower the temp by 20c+
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post #5 of 17
Quote:
But the high temp are easily fixed be adding a fan i just tested my other board without vrm heatsink just adding a fan lower the temp by 20c+

Yep. Im just using the stock AMD FX-6300 AVC 70mm fan on the vrms and have it controlled by FanXpert. In my fan collection, I found another 70mm AVC fan from an old pentium 4 system that runs at lower rpm and is quieter, so I may put that one in. biggrin.gif
Quote:
I think Ill get a PWM controlled one for more air volume at high mhz and I can use it on the cpu_opt header.
I just ordered this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835186034
6 year warranty, good reviews, decent price and the 92mm Arctic Cooling fan on my old Freezer Pro was quite durable.
Quote:
i think im gonna do a hole for a 120mm fan with my dremel
For best results, the position of that 120mm fan is critical. You dont want the center of the fan, which has dead air space in front of it for a distance, to be over the back of the cpu socket or over the vrm area.
Edited by cpmee - 4/8/14 at 6:37pm
    
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post #6 of 17
Thread Starter 
im all powered by pwm and splitter it rule biggrin.gif

but i need some small pwm

just gonna drop a 120m in the back
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post #7 of 17
Quote:
im all powered by pwm and splitter it rule biggrin.gif

but i need some small pwm

Dont you have your stock FX6300 hsf just doing nothing ?

Or are you saving it because its too good to get dirty, heh. tongue.gif
    
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post #8 of 17
Thread Starter 
i have it but i just take my 92mm arctic cooling f12 from y n520 dual fan so there is still one for my q6600 and the other one on the vrm of the fx 6300


Im testing currently to see if it help temp if not i cut i hole
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post #9 of 17
OK, I measured my temps at full load on the back chips that correspond to your pictures above #3 - #5, where youre showing 100 - 113C temps.

All but the bottom chip are covered by my 92mm fan. The temp measurement on that chip never got above 45C. The other chips should be just as cool or cooler. Thats a shocking 68C less than your max temp on those chips. eek.gif

I also found out that my case isnt 100% perfect for air flow, as I got another 3C less on my socket temp with the back cover off. That made the total difference between my core and socket temps 8.4C, the socket temp being the lower of the two. Ill have to work on that without adding more noise. biggrin.gif
    
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Microsoft Comfort Curve 2000 Corsair CX600 Custom twin full tower, 12 - 5 1/4 bays total Logitech M510 
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Intel 330 SSD Samsung HD103SI Samsung HD204UI X 2 esata externals  Western Digital WD5000AAKX  
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post #10 of 17
Thread Starter 
just tested a small fan on vrm of my other mobo that was reaching 90c put a fan 36c lol
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