Hardware Computer won't get signal.

[kjb1686]

Hi everyone I have a PC that won't get a signal. It turns on fine all of the fans are running and everything. What I have tried so far is re socketing the CPU, removing RAM, checking all the connections, and re applying thermopaste. I have removed some connections one by one and nothing works. I am thinking it might be the PSU unit but have no idea. Any ideas of how I can get it to fix. It works periodically and when I get it going it works fine I had it running 3 days straight one time. I have no idea what is going on with it.

 

[FAST6191]

Do you have another machine you can try to boot the various components in? You have done the obvious ones but it is about at that stage, at least once you have tried resetting the BIOS, especially if you overclocked something.

What you describe could be a number of things -- I have seen this sort of thing be everything from badly seated RAM to a dying graphics card to a motherboard have a slightly dodgy connection on one of the chips, or indeed one of said chips overheating.

 

[Sicklyboy]

Does your computer/motherboard have a chassis speaker (supposed to beep when you turn it on and it begins to POST) or a 2 digit LCD diagnostics display?

 

[kjb1686]

@ Fast I can try in another machine it is just a pain because there is a lot hooked up to the other one.

@ Sicklyboy unfortunately it doesn't have either I thought it had one but it doesn't and I don't have an extra one.

 

[Sicklyboy]

@ Fast I can try in another machine it is just a pain because there is a lot hooked up to the other one.

@ Sicklyboy unfortunately it doesn't have either I thought it had one but it doesn't and I don't have an extra one.

Bummer, because that can rule out a lot of stuff

If you're gonna swap between machines, try the easy stuff first. RAM, one stick at a time, CPU if it's the same socket between motherboards, gpu if they're both standalone cards. If that all checks out in the other machine, just plug the motherboard, cpu, and gpu (if applicable) power from your known good PSU to your questionable PC. Or vice versa for either one. SHouldn't have to disconnect -everything- at least.

 

[kjb1686]

I will defiantly try that tomorrow the CPU I can't but everything else I can. My other PC is intel and the one in question is AMD will post back my results.

 

[Originality]

Try clearing CMOS and switching between graphics card and integrated graphics if your motherboard has it.

 

[Jiehfeng]

Sorry if I sound dumb, but what do you mean by no signal?

 

[yusuo]

Sorry if I sound dumb, but what do you mean by no signal?

The PC isn't outputting a display to the monitor I assume. And nah you don't sound dumb, we all live and learn

 

[Jiehfeng]

The PC isn't outputting a display to the monitor I assume. And nah you don't sound dumb, we all live and learn

So it's like a wireless monitor?

 

[yusuo]

So it's like a wireless monitor?

I doubt it, you know when you turn your PC off but leave the monitor on, you usually get some floating box saying no signal or the power light goes orange like it's on standby. I think he just means that. He's turning the PC on but nothing is happening on the monitor. It usually happens if there's a hardware fault

 

[Jiehfeng]

I doubt it, you know when you turn your PC off but leave the monitor on, you usually get some floating box saying no signal or the power light goes orange like it's on standby. I think he just means that. He's turning the PC on but nothing is happening on the monitor. It usually happens if there's a hardware fault

Ah I see. Thanks for clearing that up for me.

 

[yusuo]

Ah I see. Thanks for clearing that up for me.

No problem, and now you know