Hi Knuckles...I'm the guy Archean mentioned in the post above. As he mentioned your memeory module isn't listed in Asus QVL, but since they stop updating the list around a month before the board launched then it's not a given that there is incompatibility.
From what I've seen in the thread, you have most (if not all) of the BIOS options on "Auto" -is this correct? If so, then we will need to change a few values for the memory to work correctly.
As Archean mentioned, your Crucial RAM (
CT25664AA800) has working timings of 6 (-6-6-18/-21). Your board is most likely set up to default 5-5-5-15 ("Auto") which would be too tight for your RAM. If this is the case then we need to change some values in the BIOS. IF the correct timings (6-6-6-18 or 6-6-6-21?) ARE showing in the BIOS then you could have memory incompatibility, or possibly a defective RAM stick (if so then go to the the section on testing RAM with Memtest86+)
As an added precaution, could you download and run
Memset. This utility will show all the RAM timings (DO NOT change any settings in the fields- they will override your BIOS settings). Click the "SPD" button and a second screen will show up with the RAM timings (see
post#2 for screenshot)
To eliminate the timings as being the culprit, note the following steps and boot into your BIOS...
Click the A.I.Tweaker menu tab...
Set AI Overclock Tuner to "Manual" (from "Auto")
Set FSB Frequency to 333 (from "Auto")
Set PCIE Frequency to 100 (from "Auto")
Set DRAM Frequency to DDR2-800 (from "Auto")
Set Memory Over Voltage to 1.85v (from "Auto") -as you've noticed, this is as low as the board will allow the voltage to be set.
Next...
Click on the Advanced tab (next to the AI Tweaker tab)
Click on "Chipset" (should be the second option on the list)
Set DRAM Timing Control to "Manual" (from "Auto")
You will now have the timing options available to you...
Set CAS# Latency to "6" (from 5 or Auto)
Set DRAM RAS# to CAS# Delay to "6" (from 5 or Auto)
Set DRAM RAS# Precharge to "6" (from 5 or Auto)
Set RAS# Activate to Precharge to "18"-or whatever is shown in the SPD screen from Memset (from 15 or Auto)
Leave everything else as is.
F10 to save and exit
You now have the optimum memory settings.
You should now test the RAM to make sure that it is running correctly (both the timings and from a defect point of view) if you haven't already done so. Download
Memtest86+ and follow the instructions laid down in the post I linked to in the
other thread (first paragraph then continue after the screenshot).
A successful test will verify that the RAM is good, and good at the timings indicated. You can pretty much eliminate the RAM from being the culprit if your BSoD's continue.
