MSI P67-GD55 doesn't boot

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wesel

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Hi all,

I just built myself a new machine with MSI P67A-GD55 B3 and i5-2500K.

Initially it booted OK in BIOS and I did some small changes like mem voltage cause it failed on test. After the change the test passed. I noticed that the CPU temperature is somehow high, around 67C.

So I decided to add some thermal paste for better heating mgmt. It looks like I added too much paste because the paste touched the green plate of the CPU (but I didn't notice this at first). So I put back the processor and cooler and tried to boot the PC.

But it won't boot at all. All fans (including the one of the graphics card) turns on for a second and then stop. There is some troubleshooting LEDs which only lights the LED 1 which states "CPU is in 1 phase power mode" in the manual. I cleared the CMOS but that didn't help.

The PSU is modular Corsair 750HX.

Any help is appreciated.

Regards,
Wesel

 
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Right, here it is:

MB - MSI P67A-GD55
CPU - SB i5-2500K
PSU - Corsair HX750
RAM - 2x4GB CORSAIR Vengeance DDR3 1600 (PC3 12800) CMZ8GX3M2A1600C9B
VC - Sapphire 6950
HDD - WD 1TB Black SataIII, 64MB

Regards,
Wesel
 
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wesel said:
But it won't boot at all. All fans (including the one of the graphics card) turns on for a second and then stop. There is some troubleshooting LEDs which only lights the LED 1 which states "CPU is in 1 phase power mode" in the manual. I cleared the CMOS but that didn't help.
Click to expand...

If it only has '1 Phase Power' at turn-on, the board isn't detecting the CPU. I'd double-check the 8-pin power connector by the CPU and see if it is firmly seated. If it is, and you have a DVM, I'd measure the 12V at this connector. If all that is good, then that thermal paste may have gotten somewhere it shouldn't. All four should light up if you have the PSU, board, and CPU installed.

Hamsterman
 
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It depends on the type of thermal paste you used.  The white ceramic-based compounds are fairly inert but compounds like Arctic Silver 5 are electrically conductive.  Some are not conductive but are highly capacitive which is almost the same at high frequencies.  Remember that with all thermal compounds you only need a line the size of a rice grain for most processors which should be spread with a razor blade or other fine-edged instrument until you essentially have a light film across the entire surface.  The compound is only there to fill microscopic gaps (assuming you have 2 flat surfaces) and is not there to glue the pieces together ;-)

Since you had the processor out, you should take it back out and make sure you have it seated correctly.  If not, you may have bent pins in the socket which is usually the end of the motherboard.

Assuming the processor and board are still ok, use some thermal compound remover to clean the goop off the surface of the CPU and heatsink then use some remover on a small paint brush (e.g. water color brush with the bristles cut down to 1/4" long) to carefully dab away the compound from any electrical components on the green part of the CPU.

Good luck.

- D
 
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The paste I used is Arctic MX-3 - I don't know if it can lead to the problem. Anyway it is done  :bonk:

I'm going to the shop where I bought it for diagnostic.

Regards,
Wesel
 
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That's not a bad idea.

In the future, remember to ask questions before you do something like this for the first time.  Nobody minds answering questions for someone who is just learning - we were all newbies at some point in time.

That shop should have the thermal compound remover which comes in a small bottle and is made by Arctic.

- D
 
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Problem solved.

They replaced my MB at the shop. Didn't asked what I did, but at the end they said that there was a broken pin on the MB (badly seated CPU?) and some thermal paste on the socket (honestly I didn't see anything on the socket, the paste was only on the top of the processor). Anyway, I'm happy again.

Thanks for the support.

Regards,
Wesel

P.S. I miss the times when there were 'real' pins on the CPUs  ;D

 
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