My new build won't POST... couple quesitons

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dkh

New Member
New build specs:

MSI P6N sli Platinum
Core 2 Duo E6600
G. Skill 1gb

Using video card from last build - XFX 7600 something...
Using PSU from last build - Antec Smartpower 500w

Tried using different stick of RAM
Tried using different SATA HDD
Tried pressing CMOS button
Tried removing CMOS battery for 10 minutes

When I turn on PSU switch, the orange LED light near the CMOS button illuminates

When I press power switch at front of case, Processor fan turns on, HDD spins, CDROM light comes on, second green LED on Mobo illuminates, no signal to monitor

Only bare necessities installed: Keyboard, Mobo, Proc, 1 stick Ram, GPU, CDrom, floppy drive, SATA HDD

I've tried unplugging and plugging back in connections... I must have turned it on 50 times already. No POST at all.

Questions:
Do I need a 8-pin processor power connector instead of the 4-pin my PSU comes with? The MSI manual shows a 8-pin connector being plugged in to the mobo during the graphical instructions on connecting everything, however, 4 of the 8 holes are covered with peice of plastic. I assumed it was OK to use the 4-pin connector because of this.

Also, which Mobo SATA connection should I use for a single SATA HDD? The MSI manual doesn't say, so I assumed it was SATA1.

Thanks for any help you can provide, guys.
 
If your motherboard has an 8-pin connector, it's best to plug it in, if it has it, it needs it.

If your PSU hasn't got an 8 pin connector, and your motherboard needs one, you may have to buy a new PSU.
 
Actually Danny you don't need it. I remember when I was reading the badly translated Gigabyte manual it said you don't always need it although that was talking about P4's so I'm unsure about the Core 2 Duo's, but the TDP is lower. 65W instead of god-knows what for the P4's.
 
Oh right.
Yeah I see what you mean, that's strange...

Does your PSU have an 8 pin connector, He could try it with it plugged in?
 
Time to do what I did when my PSU and motherboard failed. Unplug EVERYTHING except the CPU and motherboard power connectors, no GFX card, no RAM, no HDD's, nothing. Also take it out of the case and put it on a non-conductive surface, the anti-static wrapping is ideal. There may be a short.
 
Yeah, When I build the PC in my sig, it wouldn't even turn on, I took everything out and stuck it on the foam mat that it came with in the MOBO box, wired it all up and it powered up.

I had too many brass-standoffs in the case, I used only the ones needed and it worked.
 
Besides touching ground try plugging or replugging in the 12v cpu feed again. When swapping supplies here nothing would start. Apparently there was a loose contact in the molex plug preventing it from starting. When unplugging it and only pressing it back in lightly until the retainer clicked the system fired right up. The Orange light points at something not making contact if not grounding there. The worst would be a bad supply. Recheck all connections.
 
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