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Non-POSTing HP NC4000

post #1 of 3
Thread Starter 
I've got a HP nc4000 in front of me, that had a few problems. Numbers were scrolling on the screen for 5 minutes, and then it POSTed but Windows wouldn't boot

First thing I had to do was enable QuickBoot, which was disabled in the BIOS. Fine, it now POSTs fine. XP still wouldn't load. So I tried booting it normally, and it hung on a black screen.

Rebooted, and it's just a black screen, no POST, nothing on an external display, but the fans are still spinning, and power is going to an external ODD. I thought it might be overheating, and have given a quick blast with compressed air, and the problem is the same.

Any suggestions?
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post #2 of 3
When it would post, did it ever reach the splash screen or just stayed black? It could be you have a ram module that has gone bad.

As far as I know, QuickBoot bypasses some of the POST steps such as memory checking. I think its possible when you set it to quickboot it ignored an error the normal boot was finding. I am NOT positive about this by any stretch of the imagination so don't think its a death sentence.

You need to take the cmos battery out to clear the stored settings. On laptops the cmos battery is often underneath the hdd. After reseting cmos, try to reboot it and see if that fixes anything. If not, I would suggest taking ram modules out one at a time and seeing if it boots. Let me know what you find out.

EDIT: Looked up that model and you may only have the 1 ram module anyway. Not sure of a way to test ram without another working computer that you put the questionable ram in.
Edited by Roll Cam Tide - 4/20/11 at 2:38pm
post #3 of 3
Thread Starter 
It did pass the BIOS memory test. But it wouldn't boot into Windows still.
HDD is fine, checked it on another PC.
One RAM stick in it, yeah, but it's all Torx screws and I didn't have a Torx driver.

I no longer have the laptop in my possession but am in touch with the owner.
The other issue is that my external ODD isn't recognised in the BIOS when it IS working. It's a Buffalo something or other, USB.
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