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Need help solving my hardware issues

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  • Hardware
  • Systems
Last response: in Systems
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April 26, 2013 10:18:27 AM

Hardware list:
M4A79 deluxe MOBO, AMD phenom II x4 965 black edition, corsair dominator DDR3 1600MHz (2GB*4), sapphire radeon HD 4890 1GB GDDR5, corsair 550W psu.

So i'll give you the full story of what happend:

All of a sudden my PC went blue screen (no signal), tried rebooting but it stays blue screen and I notice the video card fan runs on full speed. So I look inside the chassis and i see a red LED on the radeon card (i found out it indicated a power failure on one of the two power connections). I then tested the video card on another setup and it was working just fine. I then bought a new MOBO and PSU hoping this would solve the problem (Asus sabertooth 990fx R2.0 and Cooler master silent pro M2 720W modular PSU). When i try to boot with the new parts, the red LED on the video card is not lit anymore (should be a good thing), BUT still fails to POST. My new MOBO have DRAM LED, CPU LED, VGA LED and boot device LED, and it says if an error is found the LED will stay lit up until the problem is solved. The only thing that happens when i power on is the CPU LED flashes red for a second(just as i hit the power button, and also when i power off), and the standby power LED is green.

Now this makes me think that the problem could be the CPU, but i don't understand why my VGA LED was lit in my old system but not in my new one, cuz that seemed to be fixed with new psu/mobo. Could it be both my old mobo/psu and CPU went bad at the same time?? I could not see any damage on any component nor smell anything burned. There was ALOT of dust inside my chassis tho, maybe this caused something to go bad? At least i've cleaned it all up with airspray now :) . Any help would be much appreciated!

More about : solving hardware issues

April 26, 2013 10:52:03 AM

Sounds like your power supply is not up to snuff. What brand and model?
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April 26, 2013 11:03:56 AM

zdbc13 said:
Sounds like your power supply is not up to snuff. What brand and model?


In my wall of text it says i just bought a brand new PSU, Cooler master silent pro M2 720W modular. The only "issue" i had with this, it comes with 8-pins EPS12V(4+4) and my MOBO has a 8-pin ATX12V, but i plugged in both the 4+4 from the psu.

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April 26, 2013 12:21:23 PM

Well you already replaced the MB and PSU... I would find a self booting disk tester and scan your HDD. then work your way around the other computer parts (GPU,RAM...)
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April 26, 2013 1:24:13 PM

I have only MB, RAM, CPU, PSU and GPU connected, so testing my HDD wohnt solve this problem.
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April 26, 2013 2:07:13 PM

Great lets move on to RAM... run memtest overnight.
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April 27, 2013 5:13:51 AM

Well, i have full blue screen so i can't really run memtest:(  On my old MOBO i tried with only 1 ram module connected and i tried at least 2 different modules alone.

I confirmed my VGA is good on another system; my PSU and MOBO is new so the only part i didn't really test is the CPU. Also from what i understand my new MOBO have LED's that should be lit if there is a problem with any of these components. As i said in my first post, the CPU_LED flashes red on power on/off, i don't know why it don't stay lit if my cpu is trash, but again this could signal that the CPU is bad?
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April 27, 2013 2:41:07 PM

Memtest86 runs on it's own bootable cd.
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