Nana
Hi all I need some advice on fitting a psu.
I Have fitted a new psu but verry little is happening. is ther anything I should be checking. things to note it is a atx. it has not been used for approx three months. the fan, power light and the hdd light come on but nothing beeps or whirrs as it should.
Cheers big dog
Sorry Big Dog, I'd like to help, but I have been told that my posts are negative.Originally Posted by Big Dog
Nana
If You know what your talking about I would rather have a negative reply than no reply.
Whorem Fore
Refer to your motherboard manual - this will point out what to do. If it doesn't - try the website for the mothermoard Manu - they should have information there.
Failing that - pull it out and try again
Must go faster - but how?
Hey BD, I'm out your way tomorrow. I can drop by and take a look. I may have a spare if all else fails.
First though:What was wrong with the old PSU? Did it die a horrible death, or passed away gently?
Is it AMD or P4? P4 has an extra molex connector to the mobo. Pluged in?
A drive, C, and Optical are plugged in?
ahhhhuuummm, both ocmponents are ATX? just checking......
Pm'ed
Seated in heavenly places
The sounds you refer to should be your harddrive. Try swapping some of the power cables that plug into your HDD & CDrom around...perservere for a while & it might work. Make sure the cables are pushed in tightly all round!
How old is your motherboard?
Nana
lolHey BD, I'm out your way tomorrow. I can drop by and take a look. I may have a spare if all else fails.
First though:What was wrong with the old PSU? Did it die a horrible death, or passed away gently?
Is it AMD or P4? P4 has an extra molex connector to the mobo. Pluged in?
A drive, C, and Optical are plugged in?
ahhhhuuummm, both ocmponents are ATX? just checking......
it slipped gently intothe night there was no suffering. We tried to shut it down off the kboard, and the hard drivestarted flashing and the screen went blank and that was it. A freind tested the old psu and found that some leads had no output when they should.
They are both atx. The mother board does not require the four pin lead A,C,D are all plugged in.
Is it possible that the components are damp from not being pligged in for three months?
Nana
Very and I have.
Seated in heavenly places
If your motherboard is very old (2-3 years?) as you say then you may need an AT psu?
Are you sure the ATX psu you have is compatible with your current m/board?
now where's some dirt!
If it was wet or something like that it would probably be poked. But because it is powering up, that seems to point to something else.
It sounds like the PSU is working fine. Only thing i could think of is that you have got too much stuff running off it. Try unplugging the cdrom, the floppy and any other non essential stuff. You can unplug all the drives if you want, see if it posts(beeps) then, although i doubt this will change anything.
Other than that, i would say that the motherboard could be poked.
Do you know what the specs of the PSU, motherboard etc are?
now where's some dirt!
It is very easy to tell the difference. An AT psu will not plug into an ATX motherboard at all.
The AT psu has 2 power plugs that plug into the motherboard. Whereas the ATX has one (32 pin i think) that plugs into the motherboard (some P4's have an extra connector aswell, but i dont think this applies to you).
Nana
The outputs at he common leads are the same.
The mother board is older than that.
The atx was supplied by a computer shop and described as a "straight swap" for the existing component.
now where's some dirt!
So, do you know if the psu is AT or ATX and weather or not the motherboard is AT or ATX. These two standards arent compatiable with each other in any way on the motherboard side of things. However they do have the same hard drive plugs and floppy drive plugs.
You have to make sure both are the same. Do you have a digicam to take pics or anthing??
Seated in heavenly places
Well if you have an identical replacment psu & all the cables are connected tightly in the right places all I can conclude is that some other part may be faulty? Possibly the m/board or dare I say it your harddrive?
I deal with upgrades on the job every week and it seems to be a necessity to upgrade m/boards, cpus, ram, & psu's more often than not because the high rate of failures & technology changing so rapidly.
Sorry that the answer isn't more obvious...personally I would perservere with it until I was blue in the face! :confused2
Yeah, if it fails to POST, could be a BIOS problem or a main board problem. It is not unlikely that a problem developed on the mainboard and brought down the previous power supply.there I go again with negativity.
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