Slow Flashing power light – no boot

Gateway DX4640 desktop froze in the middle of viewing IGN.com.

It required a hard re-boot. Now I get a slow flashing power light. Fan starts but it won’t boot. I tried bootable CD with no success, although the CD drive does spin when a CD is inside.

We tried the following:
1. unplugging power and then depressing power bottom for a minute to discharge battery.
2. pulling out the memory cards one at a time, and then booted with just one memory card at a time without success.
3. removed battery and reinserted after 10 minutes

I would appreciate any advice you might have.
Thanks.

 

This is a common issue with Gateway machines, it is down to the onboard Video chip overheating and failing, though this mostly happens with laptops!! have you got a spare vid card lying around or can you borrow one from another machine and try it in agp/pci/pcie expansion slot, to rule it out ??

iain.t :major

 

Thanks for the response.
I have a couple of IBM thinkpad laptops but no other desk tops to borrow a video card from. Any other way to identify that the video card is the problem?