Computer will not post

mtb211

mtb211

Active Member
My system build is in my signature. I recently upgraded my Heatsink and now my computer will not post. I have a very strange beep, when the computer boots up all the fans and mobo lights go on but after a few moments I will receive a rapid beep for 8 or 9 seconds with another pause and then the process will repeat.

Things I have Tried :

1) Remounting the RAM, CPU, Graphics Card, Resetted the CMOS battery. I also plugged my old heatsink in but I still get the same beep. I have removed all the ram, and I have tried just one stick. My gut feeling is its either the CPU or Mobo... would the computer post without a CPU?

Any Ideas?

Matt

PS. The only difference I see is that my old stock I5 heatsink fan is a 4 prong connection and my new one is a 3. I also have a upload of the beep that I put on rapid share if you want to take a listen.

http://rapidshare.com/files/409610920/mobobeep.wav.html

This is an updated Repost :/ I am just desperate to figure out what the heck is wrong, I feel naked without my computer/Might just take it to a computer shop

Cheers
 
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Did you by chance use a ground strap or discharge yourself of static electricity before touching the electronics?
 
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Are you hooking the fan up to the cpu fan header or system fan header? This could cause the system to not post if it detects no fan rpm but probably unlikely.

Has the northbridge heatsink got knocked when installing the cpu heatsink? Might make sure it is seated correctly.

Try reseating your 8pin power cord.

Try removing the cmos battery, disconnect the power cord, and hold the power button for 10seconds. With power cord still removed connect the two cmos leads for another 10seconds, reconnect power cord and coms battery power it on.
 
jasonn20 said:
Are you hooking the fan up to the cpu fan header or system fan header? This could cause the system to not post if it detects no fan rpm but probably unlikely.

Has the northbridge heatsink got knocked when installing the cpu heatsink? Might make sure it is seated correctly.

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Click to expand...

Hey I swear thats originally what the problem was, the northbridge did come lose but I pushed it back down, How do I know if its lose or not on properly, Ive never touched my northbridge, Do I need to remove the entire motherboard again to make sure its on correctly? or do I just push down on it?

Matt
 
im going to take the whole flipping thing apart tonight and redo everyhting, It must be the new heatsink, maybe its shorting out because the screws are hitting the case
 
The rapid single beep is generally a memory fault. It's possible that you induced a short when installing the heatsink...what heatsink was it and did it have a backplate where you could have accidently damaged something when installing? Maybe tighened the fasteners too much?

It shouldn't boot or post at all if the CPU was broken. Maybe if one part was but I think anything major would give you a black screen and nothing.
 
It's pretty hard to bend the LGA pins, do you have some extra known working RAM you could test with?
 
No I have no other Ram, UPDATE :)

Well I replaced my old heatsink on the computer and replaced the CMOS battery after leaving it out overnight and I tried to restart again, and I got the same beep.. I then realized my cpu fan wasnt spinning, the wire was wrapped around the fan, so I untangled it and the PC booted, I got a CMOS error and I used last known settings, PC booted, but I restarted the computer a minute or two later and got the same beeping again, sounds like overheating huh? Would my northbridge overheat the computer quickly if it was loose? Im going to let the computer sit for a little bit.

Any Ideas?

Matt

PS thanks for all the responses
 
Do you have another video card to test? The ram is most likely, but graphics card is second on the list, then CPU.
 
I would be curious if you get the same beep with the cpu removed. If so then it is more than likely not getting power from either the 8-pin or the heatsink was possibly installed too tight causing an intermitent connection in the MB circuitry.
 
jasonn20 said:
I would be curious if you get the same beep with the cpu removed. If so then it is more than likely not getting power from either the 8-pin or the heatsink was possibly installed too tight causing an intermitent connection in the MB circuitry.
Click to expand...

With no CPU it shouldn't do anything. Some LEDs may light up but the BIOS wont execute any code.
 
Cromewell said:
With no CPU it shouldn't do anything. Some LEDs may light up but the BIOS wont execute any code.
Click to expand...

Yes, the fans should run with no video response and he should get a beep code. I am curious if it does the exact same beep code with cpu and heatsink removed. It would be a sign that the cpu is not getting powered.
 
Thanks for all the feedback, I was wondering if anyone read my updated Post... After Removing the cmos battery and replacing my old heatsink, I realized the cpu fan was tangled .. The computer then booted 1 time(into windows, after a few minutes I restarted). On the next restart I received the strange beep again.. my new symptom now is when I power on the computer it will go on for a second or two, then it will turn off, then turn itself back on and I will receive the beep again(8 or 9 seconds), My video did display so Id doubt its my GPU. We have a PSU tester here at work, Ill make sure its not my power supply, I really doubt that it is. I unplugged all power to the motherboard when I went to work today, I will reattach when I get home and see if that does anything. I bought this motherboard 5-6 months ago from newegg.. it has a three year warrenty, do I just send it back to gigabyte if I know that is the problem or newegg?

(ps I also bought the processor 5-6 months ago )

Matt
 
If your board or cpu is found faulty you would RMA it through the manufacturer. (Intel - Gigabyte)

And you have tried using one ram stick and vise versa and used different ram slots on the board??
 
Ive tried one stick of ram, Ive stayed with the one slots, havent tried the blue.. figured slots 2 and 4 woudlnt work unless 1 and 3 were filled... Ill try that when I get home.
 
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