z77-gd65 + i2550k won't post.

Crilly

Crilly

Crilly

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Belfast, Northern Ireland
Hello, I purchased an msi z77-gd65 and a i2550k from overclockers last weekend, after getting an adapter from noctua for my old u12p to work with socket 1155 I put it together today.

Unfortunately it won't post, it powers up for 5 seconds (no display on monitor) then shuts down again, it will do this over and over until I stop it. LED1 at the top of the motherboard lights up. No beeps or anything.

I've tried reseating the heatsink, removed the mobo from the case and set it up bare bones on top if it's static bag. I've tried 1 ram stick and zero ram sticks (samsung low profile). None of which have made a difference.

Is something buggered? If so, is it more likely to be the mobo or the cpu? Would overclockers let me RMA both?
 
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Why did you buy a 2550K? It's just a more expensive 2500K with a faulty iGPU :confused:

Have you checked that the bios in your board is compatible with the 2550K? I don't see any reason why it wouldn't be though.

Faulty CPU's are very rare so my betting would be on something else. Can you test out the PSU on a different PC? If you can rule out the PSU then the motherboard would be my next suspect.
 
I had a 10% off voucher that was about to expire like 2 days before ivy-bridge launched. Having read previews and stuff, and the worries about overclocking heat, I decided to just get a sandy.

I got a 2550k because it was the same price as the 2500k at the time, since I'll never use the onboard gfx, I'd rather have 100mhz (not that it's a big deal either). It's listed as supported on MSI's website.

Anyway regarding my problem. The pSU I've had for a while, it was powering my q6600 until this morning, so it's in working order. It's a corsair 750w non modular.

Full spec is
i2550k
msi z77-gd65
HD 5850 1gb
Samsung 8gb 2x4gb MV-3V4G3D/US
Cosair TX-750w
Using a Noctua U12P with ceramique 2 paste.
 
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Yep, as I said I removed the mobo from my case, disconnected and reconnected the main power and 12v. Tried turning it on without ram, with 1 stick, with 2 sticks, with no graphics card.

The board has an LED panel that displays error codes etc, it isn't showing anything.
 
Crilly said:
I had a 10% off voucher that was about to expire like 2 days before ivy-bridge launched. Having read previews and stuff, and the worries about overclocking heat, I decided to just get a sandy.

I got a 2550k because it was the same price as the 2500k at the time, since I'll never use the onboard gfx, I'd rather have 100mhz (not that it's a big deal either). It's listed as supported on MSI's website.

Anyway regarding my problem. The pSU I've had for a while, it was powering my q6600 until this morning, so it's in working order. It's a corsair 750w non modular.

Full spec is
i2550k
msi z77-gd65
HD 5850 1gb
Samsung 8gb 2x4gb MV-3V4G3D/US
Cosair TX-750w
Using a Noctua U12P with ceramique 2 paste.
Click to expand...

It's not really an extra 100mhz though, you do know that? All you have to do to get the extra 100mhz is go into the bios and up the multi by one. That's all intel have done. It won't clock any higher than a 2500K as it is the same silicon just with a failed iGPU.

And I don't use my iGPU as I have a GTX480. But if my 480 dies on me, I don't have to faff about trying to get a stopgap card to keep my PC running while I wait for a new GPU to be delivered. It is handy to have as backup.
 
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Crilly said:
Yep, as I said I removed the mobo from my case, disconnected and reconnected the main power and 12v. Tried turning it on without ram, with 1 stick, with 2 sticks, with no graphics card.

The board has an LED panel that displays error codes etc, it isn't showing anything.
Click to expand...

Have you got a spare PSU you can try?
 
I don't have a spare PSU no, just a very old modular hx520 powering the pc I'm on atm. Which I'm pretty sure doesn't have the correct power connector.

As I've said the PSU was working fine with my q6600 system this morning.

I think my only choice is to RMA the mobo and see what overclockers say.

IvanDobskey said:
It's not really an extra 100mhz though, you do know that? All you have to do to get the extra 100mhz is go into the bios and up the multi by one. That's all intel have done. It won't clock any higher than a 2500K as it is the same silicon just with a failed iGPU.

And I don't use my iGPU as I have a GTX480. But if my 480 dies on me, I don't have to faff about trying to get a stopgap card to keep my PC running while I wait for a new GPU to be delivered. It is handy to have as backup.
Click to expand...

Yeah I know, they were the exact same price and I have a few old graphics cards lying around, so I couldn't think of why I'd ever use the IGP so I just went with the 2550k. If the 2500k had of been cheaper, I would have got it.
 
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I was wrong about the other PSU it has a 12v connector, thus it was compatible. Just quickly took this pc apart tried it, then put it back together. Unfortunately the results were the same.

OC Genie is off and I've cleared the cmos. Out of things to try, going to rma the mobo. Of course I'm not sure if it's the cpu or the mobo, but I think the cpu would at least post even if it was iffy.
 
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