'ASUS M5A99X EVO' Randomly Freezing.

Asus M5a99x evo desktop motherboard - am...
March 26, 2012 at 05:20:01
Specs: Windows 7 ultimate 64bit, AMD FX (tm)-6100 six-core Processor 3.3ghz / (2x 4gb crucial CT51264BA1339.M16F)
Hello all,
I've recently built a new home PC. Specs as follows.

-Asus M5A99X EVO
-8gb ddr3 ram (2x 4gb crucial CT51264BA1339.M16F)
-500gb caviar green western digital hdd
-AMD FX (tm)-6100 six-core Processor 3.3ghz
-Radeon HD 6850 2gb gddr5
-500w psu
-Antec h20 Kuhler 620
-x2 additional Chassis fans.
-Windows 7 ultimate 64bit

The issue i'm having with the system is that it freezes completely randomly without any trend in the cause. When it's working it works brilliantly, but will freeze for seemingly no reason. I have run a temperature monitor and observed it freeze while the processor temp was 33 degrees(c) and the motherboard was at 31degrees(c) so i'm not convinced thats the issue either.

I have tried a different PSU however it suffers the same problem, with the additional error of randomly powering off/restarting.

I am no expert but have never had problems building systems before, this however completely mystifies me. Bios,MB and GFX drivers are fully updated. I've even reinstalled OS and drivers with no luck. I hope this is some simple mistake i've made but would be very grateful for anyone who could shed light on this mystery for me!

Thank you very much for taking the time to read!

See More: ASUS M5A99X EVO Randomly Freezing.

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March 26, 2012 at 05:46:04
"500w psu"

How about listing the make/model?

"500gb caviar green western digital hdd"

Why did you choose such a slow HDD for the OS? Green drives are better suited for data storage.

Have you tested the RAM with memtest86? Have you tweaked the BIOS settings for best performance or did you simply load the defaults? Did you tweak Win7? What additional software did you install, especially the anti-virus program?

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March 26, 2012 at 05:59:04
Sure, the PSU was included with the case.

Although the details on it are patchy. It says on the unit

atx p4 power supply
AC input-115/230v,5/2.5A,50/60Hz
DC output: +5v +12v -5v -12v +3.3v +5vsb Total
KY-ATX500: 32A 14A 0.5A 0.8A 28A 2A 500W

The other PSU i tested it with was as follows

COLORSit atx12vp4 switching power supply
AC INPUT:230VAC 10A 50-60Hz
+3.3v +5V +12V -5V -12V +5VSB
28A 35A 30A 0.5A 0.8A 2.5A


Regarding the HDD choice I was unaware that the HDD was unsuitably slow, but it's good to know so thank you.

The system went through memtest86 with no errors

Other than the boot sequence the bios is set to defaults, win7 is untweaked and protected with Avast.

I hope this helps clarify the problem, thank you for you're contribution!

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March 26, 2012 at 06:19:50
Both power supplies are garbage, but the one that came with the case is especially bad. What country are you from, UK?

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Related Solutions

March 26, 2012 at 07:21:16
yes, i'm from the UK nice guess :)

So what you're saying is that the PSU's are such garbage that they are the most probable cause? Even though (theoretically) they provide enough Wattage, the over all quality of the component is bringing it to fail?

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March 26, 2012 at 07:34:08
Corsair 430W V2 CX Series PSU £36.00 + P&P


Googling is quicker than waiting for an answer....

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March 26, 2012 at 08:23:56
Thanks for pointing me in the right direction Jolicloud, however my current graphics card requires a 500w minimum. I'll look at more corsair models.

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March 26, 2012 at 09:28:52
It is the having a single 12V Rail with 35A+ which is more important, saying 500W is meaningless....

Googling is quicker than waiting for an answer....

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March 26, 2012 at 09:44:04
Oh really? I'm by no means questioning you're statement, but does that then assume that the manufactures recommendation is incorrect or dumbed down?

"It is the having a single 12V Rail with 35A+ which is more important"

What is this alternative to, what is it i should avoid?

Thanks for you're patience.

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