yea so i need pc help

[paz9x]

so my pc stopped working. just wouldnt load to the bios screen.
I ordered a mobo and swapped everything over. now im not any video out, the monitor acts like theres no output.
the only jumper on the mobo is the cmos.
ive tried it with just the monitor ram and vid card plugged in, same.
i get no beeps, i press power and the fans start for a second, then shut off for 2-3 seconds and then come on and stay on.
everything seems to start up, fans, drives, etc.
ive tried reseating the vidcard.
theres no onboard video to try.
im stumped and i need to get this fixed as im going away for a bit and need it working for the family.
ive googled and read what i can find and have only seen, "mobos bad"
i kinda think ive overlooked something.

its an ecs p965t-a with 2x256 ddr2 2x512 ddr2
p4 530
ati x300

any help will be GREATLY appreciated.
im so frustrated.

[espy605]

so my pc stopped working. just wouldnt load to the bios screen.

What happened exactly?

I ordered a mobo and swapped everything over. now im not any video out, the monitor acts like theres no output.

It's one of three things, the video card, the motherboard or the power supply. Since you swapped out the motherboard, I don't think it's that. If the CPU isn't properly cooled (heatsink-fan), most motherboards have an auto-off.

[paz9x]

What happened exactly?



It's one of three things, the video card, the motherboard or the power supply. Since you swapped out the motherboard, I don't think it's that. If the CPU isn't properly cooled (heatsink-fan), most motherboards have an auto-off.

it simply just stopped working. out of the blue.

well, the cpu didnt show any visible signs of damage. it had a crappy stock passive cooling fan on it, i replaced it with an artic pro cooler 7, so i know its properly cooled now ( i have two other fans moving air over it as well)

I had figured it was the mobo as thats the info i got from searching previously, also id expected to be able to get the bios screen as long as the mobo was ok, which i couldnt.

if a pc over heats, what order do things go south?
id expect it to be cpu/mobo/ram
id like to just replace everything but the time and money are lacking.

[Skylander7]

Ok.. this may sound like an offbeat theory to some, but there are a whole set of possibilities for this..

Have you fooled with the mobo lately? I've seen a pc do this before when it was grounding out, and set off of the spacers. The fans would kick for a second, and nothing would happen.

Secondly, check your PSU on the voltage slider. I've seen the same thing happen with that before as well.

Those are two offbeat theories, but I've seen it happen before. I know it isn't logical, but I've seen it happen on an Asus board. It didn't smoke and burst into flames, but similiar behavior occur. Different systems behave differently, so who knows.

Since you're not getting any beeps on the system speaker, the RAM could be ruled out.. but just in case, take out the other three modules and put only one of the 512 sticks in. The mobo may not like the different RAM sticks (maybe their speeds differ or something). See what happens then.

I'd pretty much rule out the video card theory. The system can't be booting up obviously, and you aren't getting any beeps... so I'd say there's a short in the mobo.

Before you get the new Mobo though, have you checked your power supply? Some mobos will not operate if the voltage fluctuates, and automatically shut down.

I'd rule out the processor overheating, as it wouldn't from a cold startup.

So basically... try this. Reseat the mobo. See if it's grounding out/came off of a spacer or something. If no go, try using only one of the RAM modules. If still no go, try a different PSU. Then go for a new mobo.

[espy605]

it simply just stopped working. out of the blue.

But what does this mean exactly? It wouldn't power on at all? Or there would be power but no video signal like you have now?


I had figured it was the mobo as thats the info i got from searching previously, also id expected to be able to get the bios screen as long as the mobo was ok, which i couldnt.


Several things have to be okay to get to the bios screen. Video card, motherboard, power supply. CPU and RAM, too, maybe, but I've never tried to turn on a computer without both installed.

if a pc over heats, what order do things go south?
id expect it to be cpu/mobo/ram

RAM isn't really a concern unless you're overclocking or if the entire PC heats up. However, it can get physically damaged but that's unlikely since the computer had issues before you opened it up.

It shouldn't be the motherboard either since you already replaced that. The only parts of the motherboard that typically heat up are the northbridge and southbridge, although I am a generation behind in my understanding. Typically, these two parts are cooled by passive heatsinks, sometimes with a fan.

The video card is usually the culprit with overheating issues, but that's only an issue usually when you have poor ventiliation/cooling during 3D gaming.

The CPU cooling sounds fine to me. Modern motherboards shut off the computer when the CPU gets to a certain degree so it doesn't fry anything.


I think it's a faulty power supply which is about $40 to replace. However, don't hold me to that.

If you have another desktop case you can use to swap out the innards, that would be ideal. Test each component one by one.

[paz9x]

Ok.. this may sound like an offbeat theory to some, but there are a whole set of possibilities for this..

Have you fooled with the mobo lately? I've seen a pc do this before when it was grounding out, and set off of the spacers. The fans would kick for a second, and nothing would happen.

Secondly, check your PSU on the voltage slider. I've seen the same thing happen with that before as well.

Those are two offbeat theories, but I've seen it happen before. I know it isn't logical, but I've seen it happen on an Asus board. It didn't smoke and burst into flames, but similiar behavior occur. Different systems behave differently, so who knows.

Since you're not getting any beeps on the system speaker, the RAM could be ruled out.. but just in case, take out the other three modules and put only one of the 512 sticks in. The mobo may not like the different RAM sticks (maybe their speeds differ or something). See what happens then.

I'd pretty much rule out the video card theory. The system can't be booting up obviously, and you aren't getting any beeps... so I'd say there's a short in the mobo.

Before you get the new Mobo though, have you checked your power supply? Some mobos will not operate if the voltage fluctuates, and automatically shut down.

I'd rule out the processor overheating, as it wouldn't from a cold startup.

So basically... try this. Reseat the mobo. See if it's grounding out/came off of a spacer or something. If no go, try using only one of the RAM modules. If still no go, try a different PSU. Then go for a new mobo.
thanks.
well this problem is with a new ecs mobo and a new antec case and ps.
Im actually thinking the mobo may have been doa. im just not versed in this stuff enough to think its the mobo and not me screwing it up.
i dont see a voltage slider on this ps either.
the ram are matched pairs, i just swapped them over. im gonna give the single stick a try though.