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WTF is wrong with my computer??

B

Black88GTA

Diamond Member
A while back, I swapped everything I had into a new case. Turned it on, promptly blew up the PS. So I get a new one, and at the same time get my board RMA'd from Abit (leaky capacitors). Once the new board arrives, I plug everything in, (minus a couple components I wasn't sure about - CCFL and case LCD) and turned it on. NO video output. Checked 3 different video cards - 2 AGP and one ISA. All 3 were tested in other machines and work perfectly. Brand new mobo and PS, and no video.

When I turn the computer on, the LEDs on front light up, fans spin up, HSF goes, HDDs access, etc. Everything sounds normal, but there's no video. One of the video cards that I tried in it has diagnostic LEDs on the board, which illuminate normally for the first 15 or so seconds when it's running, but then the red "error" LED illuminates on the card. What can cause this? Bad processor, bad ram?

I know it's not the vid card, as I tested 3 different ones. Shouldn't be the mobo, it's brand new. PS is also brand new. I wouldn't think that drives, etc. could cause this - or can they? Please help if you know what this might be, I'm tearing my hair out!

System is an AMD Thunderbird 1.1GHz, Abit KT-7 RAID board, 768MB ram, Antec TrueBlue 480 PS, with the usual assortment of HDDs and optical drives.
 
Make sure your mobo is properly seated on the standoffs. Remove all the items and test them out on a wooden desk to see if that is your problem.
 
good advice there. A friend left a standoff in the motherboard plate once and that probably shorted out 2 solder points. Amusingly it was also on a KT7-Raid which worked fine after removal of the standoff.
 
Thanks for the help so far guys. I'm probably gonna remove everything from the case and test it all out on a phone book or something tonight, as it looks like it's probably some sort of electrical problem. I know that there were no extra mounting standoffs in the case, cuz it was a brand new case and I only installed the ones that corresponded to the holes on the board. Question - is it possible for the board to short out through the standoffs when they're in the proper locations? They're those little brass standoffs, not the plastic kind, so they are conductive...

I don't think it's a dead AGP slot, cause the third vid card I tried was an ancient Trident TVGA 9000B that went into the ISA slot. Nothing there either. I know that the ram is done for, as I did test that out in another (working) system, and got nothing. I also put the ram from the working machine into mine, but it still didn't work. Hopefully I can RMA the ram - I don't have $$ to replace all of it.

I would have tested the CPU in a working one first thing, but I don't have another socket A system around that I can test it out in 🙁. What are the general symptoms of bad CPU/mobo? I've never had one do this before, and I'm somewhat stumped. I'll probably post this up in the tech. support forum too, thanks for the suggestion 🙂.
 
Most mobo will beep when the ram or the video card is not present. So if your mobo beeps then it's a good possibility it still works. Now for the CPU it's hard and the only test is to try it on a working mobo.😎
 
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