Why won't my computer post?

GeForce based cards and VIA KX133 or KT133 motherboards have problems. Try updating the BIOS or something first and then pop in the video board. Try using a different video card.

Its hard for me to believe that its a bad component problem, cuz I'm building two computers side by side exactly the same. Either I'm getting a short somewhere, or I'm doing something wrong, I dunno..

Be sure to powerup with only the video card, 1 stick of RAM and the CPU (no NIC, mouseless, no keyboard, no drives, etc). I had a problem once where my (very old) keyboard would cause intermittent non starts http://dev.www.sharkyforums.forums.relay.cool/. Couldn't figure it out until it got worse enough to repro.

If you are using AGP, try PCI (if you have one laying around).

It seems that I can get it to post whenever my computer has been off for a few hours and then I turn it on. But if I try turning it on a few mins after its already posted once, it won't do anything. It seems like its a power issue, but I don't understand how that could be..I've got a 300 watt p/s.

I put a computer together over the weekend and it has the exact same problem. Identical in every respect. It is a ABIT KT7-RAID mobo with an AMD 900Mhz CPU and some kind of ATI video card. I did verify that the video card worked in another PC. I've disconnected everyhting else with the exception of power to the drives.

I just recently came across a system someone was building with an asus a7v (I know you have a different board but..)He had his power supply switch barely set to 115. Moved it over and worked like a champ. Also after your machine atempts to boot does it shutdown..or just hang. If it shuts down, kill the on/off switch on your powersupply, unplug it, plug it back in, turn on the switch and press your power button from the front. I have actually seen motherboards hold an electrical charge, which causes all kinds of wierd boot up issues.


If all else fails try:
Try clearing your cmos, most mobo it's like move this jumper over a pin leave for three seconds, and then move it back. Remember to remove your power cord.

Man..I feel like an idiot. I discovered that I was using an extra mounting piece that I shouldn't have been using, and that was causing a short! I took the piece out, put the mobo back in the case, and everything works perfectly now. I sure learnt a lot from this whole experience https://www.sharkyforums.com/images/.../2005/06/5.gif

topdawg, what was the extra mounting piece?

Is there anything resting on the board or maybe on the RAM that would be causing a ground loop??? screws that are out of place?? If you have your system speaker enabled and hooked up take the video card out and see if you can hear any beep codes if it posts...then check the documentation for the meaning of the beep codes.

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Keep honking I'm reloading.

OH NO, now i got the same problem....as you see this in the morning on Sep 25, im going to take a look at the metal mounting pieces....please god let it be that

****, sorry to curse, but DAMN... i took out 2 metal mounting pieces not doing anything on the mobo but being there....so they are elminated from the problem.... what else can cause some shorts?

Note: My POST system is an Abit KT7 (non raid) with a Tbird 750, GeForce 2 MX, and 128 MB PC100 CAS3 memory (NEC, PNY)

I have no drives attached...

i don't know at this point I am kind of grasping at straws but I would check wires from the switches on the case to see if any of them have shielding that has been worn off etc. Do those boards have a power LED on them? if they do hook it up to another power supply to see if it still takes power...maybe it is damaged.

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Keep honking I'm reloading.

I had the same problem with my old computer, it would sometimes turn on and sometimes it wouldnt, what it turned out to be was when i was puting the cards in, a little bit of the card wasnt going in all the way, so sometime when i turned the computers power on i shook it and it would turn on, so it might be you dont have the screws in all the way so the board is bending sort of when you put the cards in and the cards arent connecting all the way to the slot...hope this might help.

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800mhz Amd Athlon T-Bird
DFI motherboard
VIA Technologies Inc VT8363 KT133
128 SDRAM PC-133
Nvidia TNT2 M64 32megs
30 gig generic crapola
CD-RW
DVD
250watt

Another very simple suggestion; hit reset after power. When unlocked/clocking that is sometimes req'd each time!

Vash also has valid point, some case back panels do not align directly perpendicular to
mobo plane, and the front of the pci card will actually pull out enough to interfere with connections. That happened to mine, tried the pci's without screwing in, no problems. But when I tightened the pci holdown screw(s), it would not work. Had to reomove mobo and use fiber spacers to correct obtuse angle.



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AsusA7V1.01,Tbird750dipped@100x10,bios1002,tweakedWinME,2WDa ta100hdds30gigsSonyCRX100CD-RW,Compuke 8xDVD,LS120,SBLive,DLink 530tx+NIC,ModemBlasterPCI4xAGP TNT2, etc,yadayada &ad nauseum. "hullujua nuo suomalaiset!"