Can anyone help me. I have been having probs with my Pc for a while now. It first started when i used to find the pc had turned itself off. The fan didn't sound too good so i got a new cpu fan and all seemed ok. Then a few weeks later it kept crashing on me. Last night it crashed so i turned it off. Now, it won't turn on at all. The MB green light comes on the board but when u press the power switch nothing happens. I hooked up a more powerful psu to it and it goes but there is not enough power for it to boot. The cpu fan spins slowly and you get a ticking sound from the cpu. I thought it was static, sometimes it used to switch off after a few seconds of pressing the power switch but now there is nothing there. I noticed not so long ago when i did a reinstall that the clock was reporting the year as 1999 and 12 hours behind. Can anyone offer any advice Thanks

I am kind of confused! Is your PC up and running? or I doesn't boot at all? Meaning no Windows, no video etc..

It was a good idea to hook up a more powerful psu, but unfortunately it sounds (from your description) as if either the MB or CPU are going out. More likely the MB from the sounds of it. Here are some basic MB/CPU/MEM/VID hardware failure troubleshooting steps that I follow. I would strip it completely. Take out all PCI/ISA/AGP cards, disconnect IDE's and floppy. Remove all DC power connections except to MB. Remove memory. Remove CPU and Fan. Unplug power from back of computer. Press and hold the power button until the green light on the MB flickers out (draining flea power). Plug back in. Get on the net and find out your MB's/Bios beep codes. Boot the system. Listen for beep codes. No beep code = probable bad MB. If beep codes, move on to next step. (repeat step w/ a known good MB if applicable) Put only CPU back in (w\fan of course). Drain flea power again then boot. Listen for beep codes? Are they different? (from no cpu to no memory). 'No CPU' or No beep code = probable bad cpu (or fan). 'No Memory' Beep code = go to next step. (repeat step w/ known good CPU if applicable). Drain flea power. Put only a single memory stick back in. Boot. Listen for beep codes. Are they different? (from no memory to no video). 'No Memory' beep code: probable bad memory. 'No video' beep code, go to next step. (repeat step w/ known good memory if applicable). (I know this step doesn't really apply to your situation, so you can skip it if you want). Drain flea power. Put video card back in. Boot system. No beep codes: Connected hardware is (at the moment) functioning normally. No video beep codes: probable bad video card. (try known good video card if applicable) If it starts to POST. Go into BIOS setup and reset all defaults. Save/Exit. Shutdown. Connect a single bootable device (cdrom, floppy, or hdd). Boot system. Does it boot to that media? If you get all the way to the bootable media, and it boots, then the possible problem could have been resolved by simply reseating the effected hardware. Good luck! -SJ

Thanks for your replys. To clairfy, my pc will not post or anything. You press the power button and nothing happens. When I connect the power supply up the light on the motherboard lights up which in this case is green.

Follow the first few steps in the troubleshooting that I posted before. What you need to do is figure out if it's the MB or CPU (unlikely the memory, but worth checking). Those steps will determine that.