recently built a pc, put everything together but when I switch it on i get no display on the monitor and no sound at all!!

these are the specs:
ASUS A7V socket a motherboard
AMD Athlon T-Bird 800MHz
128MB PC133 unbuffered 3.3V RAM
300W Power supply
Geforce 2 GTS graphics card

the power supply switches itself on automatically when i turn it on and there is no way to stop it(ATX and no switch on it) very annoying! http://www.PCGuide.com/ubb/mad.gif

i tried disconnecting everything but the hard drive but still nothing so im guessing its either my RAM, processor, motherboard or power supply is faulty.
I know my geforce works coz i tried it in another machine. when it switches on the fans spin up(including the geforce one) and the hard drive spins up and it accessess it for a while and then nothing it just hangs there, no video, no sound.

I don't think its the monitor coz when I disconnect it it displays a message saying no video input, so its working ok.

are one of my components faulty or is there something else I could try besides banging my head against a brick wall???? http://www.PCGuide.com/ubb/mad.gif http://www.PCGuide.com/ubb/eek.gif http://www.PCGuide.com/ubb/mad.gif

Cheeers

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CraZee FooL

Try resetting your CMOS by pulling out the battery. Could be that the settings for the memory are wrong.So if this works go right into your BIOS setup and check the settings for memory and video.

Good Luck

http://www.PCGuide.com/ubb/smile.gif

rite thnx ill try that,
dont think its the prob though, its a brand new system http://www.PCGuide.com/ubb/frown.gif

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CraZee FooL

Check the voltage selector switch on the power supply, if you live in the USA it needs to be set to 115V. Cases often leave the factory set to 230V, perhaps because if you pulg 115V volts into a system set to 230V it will not run, If you plug 230V into one set to 115V you blow up the power supply, big bang lots of smoke.

Double check the headers on the mobo, besure that the power connector is conneced to the correct header. Polarity (which way it is plugged in) does not matter for a switch.

[This message has been edited by Rossgr (edited 01-06-2001).]

nope,live in ireland, voltage is 230V and thats all the power supply takes, no switch on it

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CraZee FooL

please folks i need help desperately http://www.PCGuide.com/ubb/frown.gif
is there anythjing else i could try before i come to the conclusion that one of the parts is faulty???

pleeeeeeeeeeeeaaaaaaaaaassseee help me!!!!

cheers

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CraZee FooL

Hold down the power switch that turns the computer on for about 5 seconds, that should turn it off.

Have you tried either assembling the bare bones machine on a table or adding cardboard washers between the motherboard and chassis to eliminate a ground problem? Bare bones means only motherboard, CPU, memory and video card. Keyboard might not be a bad idea...no floppy or hard drive. Boot long enough to see a picture or know you don't have one. That will eliminate a ground problem or prove it's in the basic system.

Is anything getting very hot?

Reseat the video card and memory chip(s). Make sure the CPU is fully seated and corectly oriented. Try different memory and video card if you have them available, or try the current ones in a different machine to prove they do work.

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thanks for the reply pete

tried the bare bones system just now but still nothing(no sound, no video) http://www.PCGuide.com/ubb/frown.gif
so it isnt a ground problem.
i dont think anything is getting very hot but i only leave the system run for about 10 mins.
tried reseating components like you said but still nothing.
i was so desperate i even tried resetting the cmos but i didnt think that'd work anyway coz everything is brand new!

anyway ill try testing the components in someone elses comp soon(if i can tallk em into it http://www.PCGuide.com/ubb/biggrin.gif ) and i let ye know how i get on.

if anybody has any more ideas please let me know!

cheers,

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CraZee FooL

ok, heres the story now.

brought motherboard, ram, cpu and vid card over to a mate o mine and tried them in a different case with a different power supply but still doesnt post!

swapped the geforce with a pci card but still doesnt post, swapped ram for different stick but...you know the rest http://www.PCGuide.com/ubb/rolleyes.gif

the ram is working ok coz we tried it in a different machine and if it was the ram anyway it would at least post!

so that narrows it down to the motherboard and cpu, my mate reckons its definately the motherboard because it would still post if the
cpu was bad -> is he right????

cant check out the processor coz we have no other amd socket a motherboard to try it on, so i guess ill have to go along with his motherboard theory if no one corrects him.

were gonna try and get the motherboard replaced now, fingers crossed http://www.PCGuide.com/ubb/biggrin.gif

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CraZee FooL

I don't believe it would post with a faulty CPU. I recommend going to AMDs website. They have an Excellent section on building your computer with their AMD chips. There's a lot of reading but they didn't skimp on the information that they offer.

If you have the motherboard manual, (I hope so...) double check all your jumper settings and check to see if you might have a clear CMOS jumper set...also double check the power supply wires, etc.

If it's none of that, I'll start to suspect a bad motherboard or CPU.

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nope, i have checked the jumpers about five times and theyre ok.
i tried it on jumperfree mode and manually setting the jumpers but nothing worked.

tried clearing the cmos aswell but that didnt work either!
checked all cables, everything ok?

all im asking is whether the motherboard would post if there was a bad processor in it, would it let me know with beeps???? or would nothing happen??


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CraZee FooL

Not absolutely positive but if the CPU is bad I think nothing would happen. Have you double checked the CPU orientation, and made sure it's fully seated?

You've ruled out everything else, it has to be either Motherboard or CPU. Determining which can only be done by swapping them for known good ones. As far as I know...

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Try removing the MOBO from the case place on a piece of cardboard. keep power plugged in. This will see if its shorting out on the case. Boot with MOBO/Processor and videocard/Ram see if you get the basic screen at boot.

If you do get a picture than its shorting out on the case.

blazer: Nice try, but it's already been done...

Maybe something from out in left field...try underclocking it. Set the CPU to run at about half its rated speed, and see if it just might work. I know it's a long shot, but something in the CPU might be heating up very fast, or it might be just plain bad. I'm wondering if it wil run at all if you step it down some. That might even tell you if it's a CPU issue.

everything else I can think of has been tried. Memory, video card, ground problem, etc have all been pretty much ruled out, so it has to be motherboard or CPU. I just checked the PC Guide's Motherboard Troubleshooting (http://www.pcguide.com/ts/x/comp/mbsys/gen_Failure.htm) article, and can't find a thing we haven't already covered. The article on troubleshooting the Processor (http://www.pcguide.com/ts/x/comp/cpu_Failure.htm) didn't offer any new suggestions, except for underclocking it.

Have you checked the motherboard for physical damage?

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If at first you don't succeed, skydiving is not for you!
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Pete: motherboard looks fine just by looking at it, but it usually isnt physically obvious if there is a fault in a component is it http://www.PCGuide.com/ubb/smile.gif

rang the people i got it from, they said theyd replace it no prob, so im sending it back tomorrow. http://www.PCGuide.com/ubb/wink.gif

say a prayer for me that its not the cpu http://www.PCGuide.com/ubb/tongue.gif

ill le ye know what happens.

cheers,

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CraZee FooL