OK, this could take a little while to explain thoroughly but I hope one of you may see the problem...
[Not nessecarily related but may help for background]
Starting right at the beginning, the fans in my PC were getting very loud upon startup and eventually quietening down once the PC had finished starting. I decided I would need to clean soon out the inside because I had heard it might be dust causing the noise. Yesterday I went to turn it on and it would power on for a few seconds then die - back then I assumed it was the dust (for whatever reason) but now I am starting to think it may be the PSU.
So I cleaned it out with an airpump (used for pumping up airbeds/ whatever) as I normally do, and proceeded to plug it all back in. But it wouldn't start... Everything inside powered on etc as normal, but there was no signal to my monitors.
Now, I have had a few different symptoms -
1. Sometimes, the PC will power on everything inside, but I would receive a beep code for a display error. This is fairly intermittent. I have swapped out the GPU and tested another, and it has done it at least once with both cards tested. It is however not beeping right now.
2. Sometimes, normally after unplugging the power cable, it will not start up at all, even though it is correctly powered on and plugged in. There is a LED on the mobo which does light up green, but the system will not power on. Depending on how long left, it does different things, almost as if the PC is 'charging' -
~1 minute it will power up in a very strange way - the fans will be jerky, the front power light will not come on, the PSU fan will sometimes stop inside it, and the DVD drive HDD will not be on.
~ Few minutes - Will power on 'normally' but will either get the Display error beep code or no beep code at all and still no monitor output. Sometimes will shut down of it's own accord after about a minute.
Basically it will not power on at all if only just plugged in..
3. It will power on 'normally' as above, but there is a strange clicking/ knocking noise at the front of the PC near the DVD drive and still no monitor output.
- Sometimes, as it attempts to power up, the front lights flicker as if not getting enough power, and the fans struggle. Once it made a very strange random beeping noise which was not a beep code, was more like the PC was screaming for help
- Have tried swapping the RAM all around, replacing GPU, cleaning, different monitors...
I am just at a loss, I have no idea what is wrong with it
The thing that makes me think it is a PSU problem is the erratic way it sometimes fails to start altogether and the way the PC seems like it just doesn't have enough power anymore...
My specs:
MoBo - ASUS P5n32 SLI Premium
CPU - E6700 @ 2.66Ghz (Not sure if I have left it overclocked, but it was a long time ago that I was playing with OCing it and nothing has happened since - lets just say it was stable though)
GPU(s) - Nvidia 8800GTX + Tried 2x 7950GT 512MB together and separately
RAM - 2GB RAM
PSU - 450W FSP ATX450-PNF
OS - Vista32
Thank you so much for any assistance anyone can render. I am at a loss...
[Not nessecarily related but may help for background]
Starting right at the beginning, the fans in my PC were getting very loud upon startup and eventually quietening down once the PC had finished starting. I decided I would need to clean soon out the inside because I had heard it might be dust causing the noise. Yesterday I went to turn it on and it would power on for a few seconds then die - back then I assumed it was the dust (for whatever reason) but now I am starting to think it may be the PSU.
So I cleaned it out with an airpump (used for pumping up airbeds/ whatever) as I normally do, and proceeded to plug it all back in. But it wouldn't start... Everything inside powered on etc as normal, but there was no signal to my monitors.
Now, I have had a few different symptoms -
1. Sometimes, the PC will power on everything inside, but I would receive a beep code for a display error. This is fairly intermittent. I have swapped out the GPU and tested another, and it has done it at least once with both cards tested. It is however not beeping right now.
2. Sometimes, normally after unplugging the power cable, it will not start up at all, even though it is correctly powered on and plugged in. There is a LED on the mobo which does light up green, but the system will not power on. Depending on how long left, it does different things, almost as if the PC is 'charging' -
~1 minute it will power up in a very strange way - the fans will be jerky, the front power light will not come on, the PSU fan will sometimes stop inside it, and the DVD drive HDD will not be on.
~ Few minutes - Will power on 'normally' but will either get the Display error beep code or no beep code at all and still no monitor output. Sometimes will shut down of it's own accord after about a minute.
Basically it will not power on at all if only just plugged in..
3. It will power on 'normally' as above, but there is a strange clicking/ knocking noise at the front of the PC near the DVD drive and still no monitor output.
- Sometimes, as it attempts to power up, the front lights flicker as if not getting enough power, and the fans struggle. Once it made a very strange random beeping noise which was not a beep code, was more like the PC was screaming for help
- Have tried swapping the RAM all around, replacing GPU, cleaning, different monitors...
I am just at a loss, I have no idea what is wrong with it
The thing that makes me think it is a PSU problem is the erratic way it sometimes fails to start altogether and the way the PC seems like it just doesn't have enough power anymore...
My specs:
MoBo - ASUS P5n32 SLI Premium
CPU - E6700 @ 2.66Ghz (Not sure if I have left it overclocked, but it was a long time ago that I was playing with OCing it and nothing has happened since - lets just say it was stable though)
GPU(s) - Nvidia 8800GTX + Tried 2x 7950GT 512MB together and separately
RAM - 2GB RAM
PSU - 450W FSP ATX450-PNF
OS - Vista32
Thank you so much for any assistance anyone can render. I am at a loss...