Solved Troubleshoot A2 Code shown on post before PC boots

Electronics supply Consumer electronic p...
September 17, 2015 at 14:50:39
Specs: Windows 7 Professional 64, i-5 3GHz / 8 gigs
I built my computer about a year ago and have never had any problems until about a month ago. The screen suddenly just turned blue and froze. After rebooting, it happened again. I booted in safe mode and it was gone for a couple days. Then it began again, but only about once or twice per day, and simply required a reboot. However, this has become the least of my concerns. Today, when I tried to turn my computer on, it just stayed on the A2 screen. If I press ctrl-alt-delete then it goes back to black screen for a moment, and then stays on the A2 screen. Last night, I used my computer without any problems, and today, for seemingly no reason, my computer has been rendered utterly useless. How can I fix this?

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#1
September 17, 2015 at 15:56:20
✔ Best Answer
Try unplugging and re-plugging your SATA connections several times (both ends) to clear any oxide off the connections. You could also try a different SATA port or renew your SATA cable.

EDIT:
The above should be tried before any software solution, as SATA connections are a known culprit for producing this A2 screen

Always pop back and let us know the outcome - thanks

message edited by Derek


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#2
September 17, 2015 at 18:02:02

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#3
September 17, 2015 at 19:52:44
I replaced all of my SATA cables with new ones, and now the computer boots again! I wonder whether the freezing problem is related to the boot problem. I hope so, since that would solve all of my problems, but I'll just have to wait and see if my computer stops acting up.

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Related Solutions

#4
September 18, 2015 at 06:37:55
I think it's highly likely but as you implied, only time will tell.

Always pop back and let us know the outcome - thanks


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#5
September 18, 2015 at 18:02:38
Well, today I tried to boot my computer and it kept happening again. I tried many combinations of SATA cables and even different ports. Finally, I disconnected all SATA cables and booted it, since it should still go to BIOS, but now my error is 99 instead of A2. Looks like the motherboard is the problem. I'll try replacing it and returning the old one.

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#6
September 18, 2015 at 18:06:06
Try post #2, only takes minutes.

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#7
September 18, 2015 at 18:59:23
Anything is worth a shot but BIOS is effectively hardware and should show even without Windows installed.

Always pop back and let us know the outcome - thanks

message edited by Derek


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