I'm Running Win XP SP3. I can power down fine. I can power up fine.


Restart (warmboot) hangs.


The HDD LED blinks on and off about twice a second. This is a continuous blinking. If I do not touch the system, blinking eventually stops. The computer sits in a hung state.

Also, when I do a cold boot, the monitor gets no signal. No BIOS info is displayed. Signal only occurs once disk is read.


Is this indicative of a software or hardware problem? How do I fix this problem?

Thanks for any help.


"power down and power up works" indicates that it is a software related problem. Did you install new software, twist your system or anything else?

|improve this answer|||||
  • Did not install any software or tweak system. Problem came on abruptly. – Mike Oct 12 '10 at 3:46

This sounds it might be a problem with the BIOS. Have you updated the BIOS and/or firmware from the manufacturer's website? If the computer is a brand-name, then they will have it, otherwise, check with the motherboard manufacturer.

|improve this answer|||||
  • Haven't updated the BIOS. – Mike Oct 12 '10 at 3:47
  • However, see my comments below about video card BIOS. – Mike Oct 12 '10 at 3:50

Thanks for the responses. BTW, computer is 8 years old. It uses an AGP video card.

New Information: During an F2 (enter BIOS settings) operation, which produces only DOS text, no signal present to monitor. Swapped to an LCD monitor -- same result. This suggests a problem with video card. Opened case, and found video card fan frozen. Think it's been like that for a while. Think the 640x480 mode is shot. When video drivers start to load, signal is presented to the display.

I've seen video cards lock a system on cold boot, but not on a warmboot with video already present. We have 3 of these machines in the office, but no one could spare their video card for a test.

Removed HD and attached to another system as a second drive. Drive works fine. Am retiring the obsolete machine, and scavenging it for parts.

Thanks for your help. Both answers were on the right trail, (1) a software problem (2) a BIOS problem (albeit, video BIOS).

|improve this answer|||||

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.