Fast running beeps after replacing the CPU

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skipole

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Apr 27, 2014
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I tried to replace a CPU today. It was a disaster...

I had an i3-2100 in a GIGABYTE GA-Z77-D3H motherboard. I took it out and put in an i5-3570k. Booted up, and heard fast beeps, and after some period of time, the computer powered down. It then powered up by itself and the beeps resumed. Rinse, lather, repeat. No post at all.I reseated the memory, checked the cables, and nothing helped.

So I put the original CPU back in and all was good. I tried the new CPI again, and still had those dastardly beeps. I went back to the original CPU again and you guessed it -- beeps.

So no I have a non-operational computer. Well I would have one, but I was doing this for a friend's computer and I feel horrible about it.

Any ideas?
 
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skipole

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Apr 27, 2014
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I didn't reset the cmos and I don't remember the number of beeps. It was quite a lot and too fast to count.

I did reattach the fan. (Question: will a computer power up without one?)

I didn't check the cables but nothing appeared loose.

I'd check all these now but I left the computer at my friend's house.
 
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notherdude

notherdude

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Jul 18, 2006
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try a CMOS reset for sure, either short the CMOS jumper or else just pull out the CMOS battery for a few minutes, all while the PC is unplugged from the wall.. And count those beeps. The beeps are an error code.
That many beeps is probably a memory error but before you futz with the memory you should reset CMOS and then if you can get into BIOS you should load 'optimized defaults', if that fails try re-seating the memory in its slots and then running just one stick. In case you jostled the video card you should re-seat it too and make sure the power cables are tightly connected to it. If a video card is not fully plugged in it will sound an alarm which could be what you were hearing.
 
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notherdude

notherdude

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and can you post the specs of the ram? and is this a home built pc or a pre-built branded PC. If the latter there is no guarantee they support that CPU even though that board clearly does. If you can get it to boot the old cpu you could try updating the BIOS.
 
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skipole

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I took the battery out for a while, reset everything, and counted beeps. 49 I believe before it powered down and started again.

This is built from components and the memory is 1x64 ddr3 1333 udimm
 
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notherdude

notherdude

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I take it the old i3 CPU is back in at this point? I'd try different RAM on the odd chance your board liked that RAM with the i3 but not the i5 but if the old CPU is still refusing to boot that wouldn't apply. I think I'd still try some different RAM though, and just one stick, and maybe try it in a different slot. Sorry, but I'm running out of ideas. If anyone else is following this feel free to jump in.
 
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skipole

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The old i3 beeps as well at this point... Very, very strange. I did find some posts about 49 beeps but no resolutions that seemed appropriate. I will continue to explore. Thank you.
 
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Mouldread

Mouldread

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Hey, I was about to suggest you to put the old CPU back in and to update BIOS. http://uk.gigabyte.com/products/product-page.aspx?pid=4140#bios The F22 version of it from 2013/11/14 says to improve system compatibility. This could help if it hasn't been updated to it already.

But now that you said that the old CPU has stopped working too I'm starting to think that you might have accidentally bent and so shorted some pins on the motherboard when replacing the CPUs. Not the CPU pins but some on the MoBo. And triple check all cables are connected well again.
 
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Mouldread

Mouldread

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I found this http://brebru.com/beepcodes.html - it suggests that long continuous beeps indicate problem with RAM or GPU. It seems like it could be more related to the RAM though - I know you said you've tried to reseat it before but maybe get it out, blow out any dust that might have gotten into its slot and check if all RAM pins look fine. Clean it if needed and reseat it and try again.
 
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