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Cooler Master PSU and AMD Motherboard Compatibility

post #1 of 6
Thread Starter 
Hey Everyone,
I'm currently helping a friend out with his computer and I am pretty much feeling defeated right now. My friend has the ASUS M4A88TD-V EVO/USB3 motherboard (http://www.asus.com/Motherboards/AMD_AM3/M4A88TDV_EVOUSB3/#specifications).

It has been working fine for him for months, then it seemingly died, so we sent it in for repair, got it back, worked fine for a couple weeks and now DOA again. It will freeze right at the BIOS screen (if it even posts), or somewhat tease you and work for a few minutes and then freeze up. We have tried different processors, memory, video cards (including onboard), disk/hard drives, and even power supplies; all with no luck of solving the problem.

So I am getting ASUS to send a full NEW replacement board to hopefully fix the problem. However after examining his power supply, I am wondering whether or not his power supply is causing the issue due to it possibly providing the incorrect voltage to the 12v 8pin power connector on the motherboard via it's (2) 4-pin connectors. The power supply is a Cooler Master rs-700-pcaa-e3 (http://www.coolermaster-usa.com/product.php?product_id=2991), and the specifications for the power supply say nothing about being "EPS" or "EPS-12V 8-Pin Socket" compatible. If this is true, then the connectors wouldn't be supply proper voltages and maybe not enough amperage, which in turn would fry the board. Odd that it worked for so long originally though if that was the case. I've read multiple threads and I am not sure as to whether or not these connectors are wired properly for use in a 8pin socket or not, so I'm officially lost. All I know is that all the yellow wires are on the side of the clip, the black wires on the opposite.

I have tested the power supply and all of the adapters test for the correct voltage as stated on the unit itself and the Cooler Master website.

Any thoughts and/or suggestions on this matter? I feel as though maybe I should buy something like this (http://www.amazon.com/StarTech-6in-Pin-Power-Adapter/dp/B002O21XHQ) just to be on the safe side. All help is appreciated!!!!

Thanks for looking and sorry for the long post.
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My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8350 GIGABYTE GA-990FXA-UD3 XFX Double D Radeon HD 7950 Crucial Ballistix 8-8-8-24 16GB 1600MHz LP 
Hard DriveHard DriveHard DriveOptical Drive
Corsair Force Series GT SSD Western Digital Caviar Black Western Digital Caviar Green Samsung DVD Burner x2 
CoolingOSMonitorPower
Prolimatech Megahalems Rev.B CPU Cooler Windows 7 Pro x64 Samsung 23" Monitor/HDTV Silverstone Decathlon 850w 
Case
Corsair SE White Graphite 600T 
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post #2 of 6
This might seem like a stupid question, but did you try to clear the CMOS yet? I have had multiple occasions when that saved my board.

EDIT: Also, that power supply is a modern PSU with all the required specifications. That 4+4 pin power should work fine for an 8 pin CPU power connector.
Edited by Alfaa - 2/2/12 at 4:49am
post #3 of 6
The 4+4 will work fine in an EPS12v socket, that's how it's designed.
It does sound to me like a dying motherboard. I'd look at his case airflow, and cable tidying too, as airflow over motherboard parts is important to keep it happy, especially over the power circuits.
While that CM PSU is not a great one, it has plenty of power, and will run that rig fine.
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post #4 of 6
Quote:
Originally Posted by allikat View Post

The 4+4 will work fine in an EPS12v socket, that's how it's designed.
It does sound to me like a dying motherboard. I'd look at his case airflow, and cable tidying too, as airflow over motherboard parts is important to keep it happy, especially over the power circuits.
While that CM PSU is not a great one, it has plenty of power, and will run that rig fine.

agreed
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ShadowForge
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by Alfaa View Post

This might seem like a stupid question, but did you try to clear the CMOS yet? I have had multiple occasions when that saved my board.
EDIT: Also, that power supply is a modern PSU with all the required specifications. That 4+4 pin power should work fine for an 8 pin CPU power connector.

Yep, I did try clearing it, and ensured the BIOS was also up-to-date. We even let it sit for a couple days with nothing on it and no battery, then reset again upon reboot.
Quote:
Originally Posted by allikat View Post

The 4+4 will work fine in an EPS12v socket, that's how it's designed.
It does sound to me like a dying motherboard. I'd look at his case airflow, and cable tidying too, as airflow over motherboard parts is important to keep it happy, especially over the power circuits.
While that CM PSU is not a great one, it has plenty of power, and will run that rig fine.

Okay, well it is at least promising to hear all you saying that the connector is fine for what it is doing but he had a budget when he built it, and got what he could at the time. I might just recommend a power supply upgrade anyway bc he wants to add some high end video cards. And his case has (2) 230mm fans and (2) 140mm fans, but I definitely think his "cable management skills" can be improved lol.

You think any possibility of the board shorting out, maybe? On all my recent installs I never used those "cardboard-type" red pads which prevent the screws from touching the board, mainly because I didn't have any. He did use those however, which should have been an even better install then.

At least ASUS is sending a new one out.
My System
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CPUMotherboardGraphicsRAM
AMD FX-8350 GIGABYTE GA-990FXA-UD3 XFX Double D Radeon HD 7950 Crucial Ballistix 8-8-8-24 16GB 1600MHz LP 
Hard DriveHard DriveHard DriveOptical Drive
Corsair Force Series GT SSD Western Digital Caviar Black Western Digital Caviar Green Samsung DVD Burner x2 
CoolingOSMonitorPower
Prolimatech Megahalems Rev.B CPU Cooler Windows 7 Pro x64 Samsung 23" Monitor/HDTV Silverstone Decathlon 850w 
Case
Corsair SE White Graphite 600T 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8350 GIGABYTE GA-990FXA-UD3 XFX Double D Radeon HD 7950 Crucial Ballistix 8-8-8-24 16GB 1600MHz LP 
Hard DriveHard DriveHard DriveOptical Drive
Corsair Force Series GT SSD Western Digital Caviar Black Western Digital Caviar Green Samsung DVD Burner x2 
CoolingOSMonitorPower
Prolimatech Megahalems Rev.B CPU Cooler Windows 7 Pro x64 Samsung 23" Monitor/HDTV Silverstone Decathlon 850w 
Case
Corsair SE White Graphite 600T 
  hide details  
Reply
post #6 of 6
Quote:
Originally Posted by rockin.memphis View Post

At least ASUS is sending a new one out.

Good for you, that must have taken awhile to achieve! thumb.gif
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