Checked power supply,fan doesn't spin,all lights on board come on,none of the fans turn (x4). ???
This is almost always the power supply. How exactly did you "check the power supply"? You checked all 12 or so voltage outs under load?
If replacing the power supply doesn't work, replace the motherboard.
SOURCE: Computer will not boot up.
remove all external devices. except the memories.
turn on the PC.
it if comes on insert each of the external device one at a time, till you come across the one that is causing the problem.
if it doesn't come on, remove the memories. and swap the memories. if it still doesn't come on, remove the memories. and see if the BIOS come sup. if it doesn't, then you have motherboard problem.
go back and check all connections. make sure the connectors are in right orientation and not pins are missing.
SOURCE: ASUS A7N8X-X Motherboard Will not power up...
The memory could be the problem. Do you have memory that you can swap in from another computer? If not, try removing the RAM and then putting it back in (called re-seating). This may help.
*** Please make sure that you have the power unplugged and that you have hit the power button to drain any residual electricty before removing the RAM. Also keep in contact with the case chassis so that you remain earthed to it. RAM is very easily damaged by tiny amounts of static that you wouldnt even notice. ***
SOURCE: screen black out, but the cpu fan is running.
it could be two reasons.
1. your RAM has a issue ( try a different ram from a friends pc)
2. your Graphics card is having an issue. ( try removing & fixing back on, if it does notwork.. either get a friends graphics card & ifix on to your pc & chk or fix your VGA card on to another PC & chk if the VGA card works. either way you will find out what wrong.
let me know the out come.
hope it works
cheers..
SOURCE: Asus P5Q-VM CANT BOOT
CPU Should work with board.Try removing cpu and replace in socket check for bent pins if all is well..reinstall.make sure to use pad or silver paste and reinstall fan.rebootRichardm69
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I have a Cooler Master GX 750 watt Bronze PSU. All power fans work until I plug in the 8 pin connection to MB,then nothing works. Checked power supply for power and it seems to work fine until I plug the 8 pin 12v to board. ?? Can't get to the Bios,keyboard doesn't seem to work as well. Is it the MB or PSU??
PS: Took the whole system apart and MB is out of the case. Have removed memory,video card,and all other components from board. as well.
The only things that use 8 pins are high end motherboards for dedicated power for CPU and for PCI express video cards. Does it boot without the 8 pin? If it does then just go with that. The issue could be the motherboard or the PSU. If you need the 8 pin, you can use a volt meter to make sure it's running around 12V. Test each yellow/black pair. Yellow + Black -
Yes it does come on and all the fans work,including the video card fan. however,there is no post to monitor without the 8 pin connector. It is a high end MB (ASUS P8P67 EVO w/i52500k cpu) also and when I plug the 12v 8 pin in,the fans jump but don't spin.
Thank you all for your assistance!! :)
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