Tell me more ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have had some problems lately with my BIOS when I turn the computer on. The POST works, the keyboard receives a signal and lights up, but there's no beeping sound from the sound card, and BIOS never searches for an OS. I removed the CMOS battery, replaced it, reconnected all the power connectors to the motherboard, took the processor out, placed it back in, etc. It's fine.

It has done this before, but now it's really persisting ... I won't allow myself to take it and pay someone to help me because I'm an apsiring expert-to-be computer programmer, software developer, and computer technician/mechanic. I would feel small if I took it to someone else to tell me what's wrong with it, because I'm supposed to know; I also lack the funds to do so anyways.

So what I would like to know is if anyone here can put their finger on the problemo? Remember, this issue has happened before, but the hardware, aside from the BIOS ROM, appears to be working perfectly, so I don't know ... also, when I turn it on, the heatsink will start, stop for a few seconds, then turn on again and such, but BIOS will never get the processor to fetch the bytes from my set-bootable device; and it was just working YESTERDAY!!!

EXTRA: I have damaged several of the processor pins in the past by incorrectly placing the device on the pin-outs, but that was months ago and has been working pretty much perfect since then, so that can't be it; I also mentioned that BIOS does work apparently, but it won't boot for some reason, and won't even write to the video memory to the screen either....

share|improve this question
1  
If you disconnect all devices and hardware from the motherboard, does the computer boot into the bios? No USB, hard drives, CD drives, etc connected? Sometimes peripherals and cables can cause boot to lock up. – Kyle Dec 26 '12 at 19:57
You mean you wan't me to disconnect the USB from the motherboard(SATA)? My computer has no CD/DVD drive or hard drive connected, but the SATAs are still attached to the motherboard. Would it make much difference to disconnect these things, really? – Lester Bonker Dec 26 '12 at 19:58
SATA cables can go bad and cause problems, but reading the extra that you just posted on the description makes me lean more towards possibly a processor problem. Try this for a possible quick fix, clean off the processor and processor pad with a cleaning pad and then add a fresh layer of thermal grease. If you've been disconnecting and reconnecting the processor it could have lost its ability to displace the heat and it immediately overheating. – Kyle Dec 26 '12 at 20:14
But overheating or not would not cease it to fail to continue fetching instructions, unless it has failed already to some point. I just said that POST seems to work, so the processor seems to not be the problem, but I think you may be on to something here ... however, I have no thermal grease. Any substitute to mask for this situation? – Lester Bonker Dec 26 '12 at 21:00
First off, I would not substitute thermal grease with anything... It's most likely something in the hardware. I would not ever decide that one piece is good until you have swapped it with another known good piece and proved it worked in another system. When dealing with hardware, it is best to find another similar system and test each hardware piece separately until you determine the problem. I mentioned the grease, because I've seen it happen. But if you keep trying random solutions you may never find a root cause. Do you have a system you could use to test each piece of hardware? – Kyle Dec 26 '12 at 21:06
show 1 more comment

migrated from stackoverflow.com Dec 27 '12 at 5:26

Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.