Posted 25 April 2005 - 03:41 PM
Posted 25 April 2005 - 03:52 PM
I need a bit more info, I assume you get nothing coming up on the screen but can you tell me :
do the keyboard lights flash up just after powering it on?
do you get any beeps from the system after powering on?
have you changed or removed/added anything at all before the problem started?
what is the power rating (Watts) of the new psu?
Also, do you know what motherboard you have?
Posted 25 April 2005 - 04:01 PM
Posted 25 April 2005 - 06:42 PM
BTW 350W is minimal but fine, I'm amazed it even worked with the 250W psu!
First thing to check, given that you've changed the PSU is that you have the 4 pin CPU power connector attached.
If this is all OK, the other things that spring to mind as a possibility are :
Is the CPU fan functioning OK
Is the cpu fan's power connector plugged into the right socket on the mobo. Theres normally 2 or 3 of these connectors (for case fans etc) & they will all work with the cpu fan but as your mobo has fan fault detection, if its not connected correctly, it won't allow the system to boot.
NB if you decide to remove/replace the hsf at any point to test it, you must clean the heatsink & reapply thermal paste before reconnecting it to the cpu. If you try a different hsf, same applies & make sure will provide adequate cooling for your chip.
If that all checks out fine, then remove all components, leaving only the cpu/hsf, RAM, psu, keyboard, video. disconnect all drive cabling from mobo.
Clear the cmos. This is jumper J4 on your mobo, jumper pins 2-3 for 10 secs then replace (pins 1-2) as before.
Try & boot the system
Let me know how this goes before we try anything else
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