Dead PC - help!!!

slobbery

T4i wrote:

What make/model is the motherboard?

It should be stamped onto the PCB somewhere.

Mobo is K8M800-M2. It came with an Athlon XP 2800+ CPU already installed.

slobbery

squirrelz wrote:

The PC speaker usually has a 4 pin connector with only the outside two used. The pins it goes to on the motherboard are therefore: pin space space pin, if that makes sense?

Sorry you're right, speaker does have 4 pin plug but panel on motherboard only has 9 pins. 8 are taken up by power switch, resent switch and leds. I can't find anywhere to plug in the speaker.

culpepper

Does the fan inside the psu turn when you plug it in? My DS had one where the fan in the psu was defective. The case fan may still turn and you can hear it but if the psu fan is not turning that will cause big problems.

slobbery

culpepper wrote:

Does the fan inside the psu turn when you plug it in? My DS had one where the fan in the psu was defective. The case fan may still turn and you can hear it but if the psu fan is not turning that will cause big problems.

Yes the fan runs fine. All fans run and you can hear the hdd spin up.

danmed

Check the memory. Try taking one stick out, switching which bank its in etc..
Also, as people have mentioned, try another power supply. Make sure you havea ll the power supply conenctors plugged in, If it needs it make sure you have the 8 pin and the 4 pin plug plugged into the motherboard. Before they came as snap ons, the pins were seperate as a P4 plug.

startrekker

Some motherboards come with the cmos set to clear: ie the jumper on the board is covering the 2 pins to clear the cmos.. I would hedge a little bet that this is the problem. Take a look at the manual and see where the jumper swithc is and fingers crossed, move it to the other 2 pins anfd it will boot.
By the way there are only 3 pins..

Also, some motherboards require a second power supply to the board, again check your manual

startrekker

just had a look at the manual and it does have a second power to the motherboard which is a four pin connector, you can download the manual here if you havent got it already
http://www.ecs.com.tw/ECSWeb/Products/ProductsDetail.aspx?MenuID=0&LanID=8&DetailID=455&DetailName=Manual

slobbery

Thanks for that!
Plugged in 12v plug and all is now working.

Toxteth_OGrady

culpepper wrote:

no.Failed power supply wont work at all.

espresso wrote:

Not true, as there are several voltage rails +5V, -12V, +12V so it's not all or nothing!

I had the psu on one of my rigs slowly die on me over 2 days last week. First symptom was only that Windows would not boot normally but was OK in safe mode for a few hours. Then later it stoppped booting in safe mode and would hang after POST. After that it failed to POST and just powered down (no diagnostic post beeps though), but all fans and mobo LEDs indicating normally. Then finally the fans stopped, leaving just the mobo pwr LED.

Fortunately I had a spare psu so I was able to quickly confirm the diagnosis and order a new one. Took the old one apart and one of the pcbs was well burnt out.

:cool:

TOG

startrekker

Glad you are all done and cheers for letting us know,,puts us sad old geeks out of our misery