Asus P6T Deluxe v2 + F3-16000CL9D-4GBRH

[unique1]

I have searched the site and can not find any valid settings for this combo. Currently my system is only detecting 2GB of the 4GB it should be (at any setting). I have read through the notes pinned on the forum, but honestly, I have no idea what most of it is talking about.

To clarify, I see 2GB in BIOS and Windows 7 64 bit, but CPU-Z is showing 4GB and what seems to be the correct slots.

I have tried XMP and Manual settings (including similar system settings posted on here), but all it seems to do is overheat my CPU and still not detect the ram. The system is not overclocked, nor do I wish to overclock it as stability is preferable.

I also updated the BIOS to the latest one to see if it helps with no luck. I have also tried the ram in different slots which did not help. The BIOS does detect each ram chip when installed separately however in most slots.

Can anybody please help me and give me some correct settings for my BIOS and this ram?

System stats:
Asus P6T Deluxe v2
G.Skill Ripjaw F3-16000CL9D-4GBRH
G.Skill Ram Cooler
Intel i7 930
NVIDIA GeForce GT 220

[GSKILL TECH]

In addition to the XMP Profile, you will also need to set the QPI/DRAM Voltage. Try testing each module with the XMP Profile to insure no modules are defective.

Thank you
GSKILL TECH

[unique1]

Thanks for the reply. However, I have no idea what to set the voltage to. Every setting I have tried has simply overheated my CPU.

[unique1]

I believe I have found stable settings now that detect all the memory with auto mode. They are probably not optimal, but they seem stable (currently running stability tests).

I will post my settings on completion.

[unique1]

Well I can get it to detect the 4GB now, but stability is another story. Can anyone help me?

[GSKILL TECH]

Post some pictures of your BIOS and we can see what's going on.

Thank you
GSKILL TECH

[unique1]

Thanks again for the reply.

Here are screen shots of my BIOS. Click on the thumbnails for a larger view.



I can make the BIOS detect the whole 4Gb of ram by setting DRAM Back-To-Back CAS# Delay to 9 or more (in XMP mode and in Auto mode), but there is no system stability.

[unique1]

Here is the last image. Forums limited me to 4 per post.

[unique1]

Just one more thing. I am not really worried what speed it runs at, I just need this system stable.

[Big Elf]

Your motherboard supports triple channel RAM, you have a dual kit. It shouldn't affect the stability though but you'll lose a bit on performance.

From the DRAM Timing Control sub menu manually change your RAM timings from 8-8-8-20 to 9-9-9-27 and the DRAM Timing mode to 2N. The rest can be left on Auto.

Try a:

CPU voltage of 1.25v, it shouldn't need that but once your stable you can try lower voltages. It may work as low as 1.0v.

QPI/DRAM Core Voltage of 1.45v, you may need to increase that but at a lower BCLK it should be enough. Again, once stable you can try to lower it. You may need to go as high as 1.6v though, it pretty much depends on the memory controller in your particular CPU.

DRAM Bus Voltage 1.6v.

Then disable CPU Spread Spectrum and PCIE Spread Spectrum. You may also have to disable Load Line Calibration but I've found Auto works fine at BCLK's under 200.

[GSKILL TECH]

With your current XMP settings, you will also need to increase QPI/DRAM Voltage to ~1.55V to stabilize DDR3-2000. You will need to find the lowest stable value for this voltage. Too high or too low can both cause problems.

Thank you
GSKILL TECH