K7S5A trouble yet again. Not registering to monitor

[CubanlB]

I have a ecs elite group k7s5a unsure of processor speed because i cant get fan off. 512 megs of crucial ddr ram 266mhz. geforce 4 mx agp. When i turn on my computer everything seems to be looking fine on the pc, all led's light up and fans/hardrive make noise. The Monitor led goes like its acknowleding the computer then it goes back to blinking yellow like there is no connection, and does not register a picture or even flash, just a cold dark evil blank screen. *its as bad as the blue screen of death* I have tryed 3 video cards, the geforce in the computer, an agp voodoo3, and a pci *unknown* card. None of them worked. I have reseeded all the cards and memory and drives. Tryed a different monitor and nothing seems to work. The computer did work fine awhile ago but has been unplugged for 3 weeks. I had the problem before and remedy'd it with a shaking of cords and reseeding video card. None of that seems to work at all this time.

 

[DieHardware]

Any beeps? Any funny smells? Recheck all connections (cards, cables, RAM, etc) and clear CMOS with the PSU unplugged. I'd check the MB battery voltage too.

 

[T2T III]

I've been through this same scenario with my new Shuttle AN35N Ultra. 3 Video cards ... yadda yadda yadda. As others advised me, it could very well be a power supply issue. What kind of power supply are you using?

 

[DarkNephree]

This has happened to me several times, unfortunately. In fact, twice with a K7S5A.
Anyhow, in both instances for me, it was a fried board. I'd hate for that to be your current situation, but just thought I'd offer the option.

If that is the case, which I hope it isn't, try upgrading the board to the Abit NF7-S Revision 2.0 with CPU upgrade. I went from the K7S5A to the NF7 and I have no regrets whatsoever.

 

[Tom61]

Try clearing the CMOS, as DieHardware mentioned. I had the same thing happen when I first installed my new DVD writer, about went mad trying to figure out what went wrong. Ended up pulling the CMOS battery and leaving it alone for awhile. After I put the battery back in, it worked fine.

 

[JediJeb]

As mentioned before clear CMOS and check the battery it could be dead. When this happened to me on my K7S5a I finally found the problem, a blown MOSFET. Look at the flat black chips behind the I/O ports and see if one has a big chip blown out of it, if it does it's a dead MOBO.