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ASUS P8 P67 PRO with 12GB and i7 2600

post #1 of 20
Thread Starter 
Hi Guys,
I just built a new system using the following:

Asus P8 P67 PRO
Intel Core i7 2600
Corsair Dominator 12GB (3x4GB) CMP12GX3M3A1600C9
Corsair TX850W
OCZ Vertex 2E 120GB
XFX GTX 260 BE

I used a scythe Ninja 3 and unfortunately I cant use the first memory slot (DIMM A1) as the cooler sits over it fairly low and also the dominator memory has a large heatsink itself making it impossible to fit.

I have placed the 4GB modules in DIMM slots A2, B1 and B2. Leaving A1 empty.

When I first booted up windows only recognised 8GB. I shut down, checked it was all seated correctly and then powered back up, this time it didnt post and the DRAM LED was lit up red constantly.

I held down the MemOK! button and then it started flashing and I ended up in the BIOS. I made sure it was set to use the XMP profile and all the timings looked correct.

I have now booted back into windows and it is reporting 12GB.
I have since restarted and powered off/on and im still getting 12GB.

Hopefully it will stay this way, but I would just like to know if it is necessary to have memory installed in the first DIMM slot, and could possibly continue to cause problems?
If so I will have to swap out my heatsink to gain access to the first slot

Thanks for your time!
post #2 of 20
Thread Starter 
*Update

I have now taken all parts out of my case and am running with the bare minimum setup to try and isolate the problem.

What's happening now is I got a constant red light on the DIMM_LED which would suggest there was a memory problem, but if I power off and power on again it starts up no problem.

I have tried this with each stick of memory and they all do the same. It wont post, red light.. then power off and on again, starts up fine.

Any ideas what could be causing this guys?

Cheers
post #3 of 20
It could be a BIOS problem because you're using 3 sticks of RAM. Have you tried it with 2 sticks in B1 and B2?
post #4 of 20
Quote:
Originally Posted by 24inchgamer View Post
*Update


I have tried this with each stick of memory and they all do the same. It wont post, red light.. then power off and on again, starts up fine.

Any ideas what could be causing this guys?

Cheers
I had the same issue with the same board.
There always was something goofy about the yellow D2 slot.

I returned it and got a new one.

Everything fine after that.

Go slot by slot, stick by stick and see if you can isolate the problem. You may have a different issue than I had.

good luck
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post #5 of 20
You are using a triple channel memory kit on a dual channel motherboard. You need to use 2 DIMMs or 4 DIMMs for dual channel operation filling all slots or slots 1 and 2. If 3 DIMMs even WORK it will be in slow single-channel mode. You have failed all over.
 
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post #6 of 20
The P8P67 boards have a bug where they always point to ram as being defective or wrong. In my case it happens in every cold boot, then i need to restart it, let it restart itself 2 times and then tell me my OC is a failure... Continue booting into windows with no problems.

It's most likely a BIOS problem.

Even though! Some people claim to have solved it by updating to the 1053 bios and clearing the CMOS (by switching the jumper)... I haven't tried it... so i don't know.
post #7 of 20
Clear your CMOS and install your ram in slots a2 and b2, they are the blue slots.
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post #8 of 20
Thread Starter 
Hi Guys, thanks for the replies.

So am I right in thinking I have purchased the wrong memory altogether? Or are my options 1- to buy another 4GB stick and fill all slots 2- only use 2 slots?

That aside, I did try it with one stick installed, I tried all slots, and I tried this with each stick I have. Same problem with them all.

I have also tried it with sticks in A1 + A2, and then B1 + B2. No joy, same problem
Edited by 24inchgamer - 1/15/11 at 11:29am
post #9 of 20
As stated above clear the BIOS I have heard this works.
post #10 of 20
Quote:
Originally Posted by 24inchgamer View Post
Hi Guys, thanks for the replies.

So am I right in thinking I have purchased the wrong memory altogether? Or are my options 1- to buy another 4GB stick and fill all slots 2- only use 2 slots?

That aside, I did try it with one stick installed, I tried all slots, and I tried this with each stick I have. Same problem with them all.

I have also tried it with sticks in A1 + A2, and then B1 + B2. No joy, same problem
Have you tried A1 and B1?

You've purchased a kit designed for 1366 motherboads, which are tripple channel (3 or 6 sticks). 1155 is dual channel, so 2 or 4 sticks. The RAM itself is the same, but 1155 was designed for 2 or 4.
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