need advice, is my mobo fried?
I've tried pretty much everything here, I'm just about ready to go buy a new mobo.
I bought a passive cooling heatsink for my A8N-E mobo's northbridge chip (nforce4, runs fairly hot but zalman guarantees their chipset cooler will work in any non OC'd situation) as I found
the stock fan was making far too much noise. I went through the standard procedures for performing this task, something I've done numerous times before. I did find however that I needed to remove some sort of adhesive thermal tape surrounding the chip in order to ensure a clearn work surface (thermal paste remover had slid in behind it).
anyways...after installing my new NB heatsink I proceeded to boot up my computer. The computer booted up fine originally. I started by going into the bios to disable the NB low fan speed warning. No problems yet. After saving my bios settings I rebooted my computer.
As my computer rebooted it suddenly dropped it's video signal and proceeded to beep (pheonix bios beep 2-1-1-1 which evidently serves no real use in trying to identify your problem). I felt the heatsink on the NB to see if it was hot or not. It was incredibly hot which re-assured me that my installation was performed correctly as you would expect heat to be transfered to the heatsink. I went on to double check every single component in the system, everything seemed to check out.
My next step was to re-install the originally supplied HSF, which turns out didn't correct my issue.
Over the course of my several reboots during various stages of my troubleshooting I always found that if I let the system off for a long enough preriod of time I would obtain a video signal (and no beeps) but only for a short time, then the video signal would kick out again. This would then lead me to have to reboot, which you guessed, would result in a dropped video signal and the 2-1-1-1 beeps.
All of this leads me to believe that 1 of 3 things has occured. (1) that I somehow incorreclty installed the HS/HSF twice and that the NB is shutting down the system as a safetey measure (reinstalling a 3rd time may do the trick). (2) I incorrectly installed the first HS and permanently damaged the NB chip causing my computer to behave eradically (need to buy a new mobo if this is the case :<). (3) I installed the HS correctly but this particular Zalman product sucks and destroyed my NB chip despite assuring me that it would not do so (still need to buy a new mobo but will swear off all zalman products).
I've just spent the past 6 hours trying to remedy this situation through hands-on troubleshooting and extensive internet searches. Quite frankly I'm exhausted and any feedback to this email would be very much appreciated.
Thanks in advance for any advice you can provide.