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Computer Won't Post

N

Ne0

Golden Member
Situation: Computer was working perfectly fine, wanted to do a cpu swap. Upgraded from E4300 to Q6600, press power button and computer shuts off after a second or two.

I've built a dozen computers and this is the first time this happened to me. Decided to upgrade to Quad Core. Received the Q6600 today so I decided to install it... I set my Bios to set default settings and cleared CMOS. I removed the heatsink and E4300, applied arctic silver 5 on the Q6600, put the heatsink on, plugged in the cpu fan connector and now the computer won't post. I have a Gigabyte P35-DS3R Motherboard (with F10 Bios which supports Q6600). So I'm thinking that there might be a short somewhere or maybe it's the case power switch.

So I remove the motherboard and only leave cpu, ram (4 sticks of 1GB PC6400 DDR2 - I remove all but one stick), video card in on non conductive surface (wood board). I turn it on with a flat head screwdriver on the 2 power sw jumper pins... and the same thing happens. So I remove the Q6600 and put the E4300 back and still the same thing. When I remove the 4pin 12v next by the cpu, it stays on (all fans moving) but no video is displayed. I swapped out the video card 8800GT with a 8600GT I had lying around, same thing. I swapped out the Ram and put 1 stick in each slot, same thing. Everything else was working fine so I'm thinking it's either the power supply or the motherboard (the only two parts where I don't have a spare to test). Anyone have any ideas? Thanks.
 
Originally posted by: robisbell
need to actually look and not assume which revision. thanks.
Click to expand...

I'm not assuming, it is revision 1.0 (anyways how is this supposed to help?) I looked at the differences between the three (1.0, 2.0, 2.1) and all 3 are basically the same - don't see what you're trying to get at?
 
well, that's why you asked for help, since you're to close to the issue to accurately see the problem.
I'll need the exact make and model of the ram.
 
I'm positive it's not the ram. G.Skill F2-6400CL5D-2GNQ PC2 6400 DDR2 (worked great for over 1 year, I have 4 sticks of this)
I also tried: OCZ2RPR8002GK PC2 6400 DDR2, and Patriot PSD22G6672 DDR2 PC2 5300

Anyways, I'm off to the store to buy a new power supply & motherboard (need one for a cheap rig anyways).
 
okay, see some issues.

1. there's no such thing as F2-6400CL5D-2GNQ, you may have F2-6400CL5D-2GBNQ, might be others with similar series that are not compatible. unfortunately, gskill has not documentation on their memory specs, having to use other sites to make a educated guess.

2. which stepping was the Q6600?

3. the OCZ does not support the timing that the motherboard requires, the board accepts these from OCZ:
OCZ2G800R22GK, OCZ2N1066SR2GK.

the CPU may have been wrong stepping for the board and caused damage, always read the documentation the CPU, and motherboard manufacturers provide before you start putting parts together.
 
If it was the wrong stepping (it's SLACR G0) it should've worked when I put my E4300 back in. Anyways turned out to be the motherboard. New Power Supply Installed on old P35-DS3R (same thing happening). Old Power Supply Installed on new EP35-DS3L board (perfect).
 
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