This is my spec:


ASUS P5K-E/WIFI-AP AiLifestyle Series P35 Socket 775 Socket eSATA 8 channel Audio
Intel Core 2 Quad Q6600 Energy Efficient 95W edition Socket 775 (2.40GHz) G0 Stepping L2 8MB Cache OEM Processor
OCZ 2GB Kit (2x1GB) DDR2 800MHz/PC2-6400 CL 4-4-4-15 PLATINUM XTC with LIFETIME WARRANTY
Actic Cooler Freezer Pro 7

I can overclock to 3.6ghz and my temps are fairly low (less than 45c at full load). Its stable and everything is great. I bought another 2 gig of RAM (same OCZ as above). My computer now doesnt boot up. Power comes on but nothing appears on the screen and no beep so no POST. However take the two gig out and it works fine. I cant even overclock to 3ghz with 4 gig of RAM. Does this mean you cant overclock with 4 gig of RAM or am i doing something wrong.

I have my memory timings at 4-4-4-15 and speed is 800mhz in the bios. I tried memory voltage at 1.8v and 1.9v but no difference. I am puzzled.

45c at full load? Wow, thats rather... cold for 3.6.

You didnt mention any of your settings for your OC, but you may need additional voltages to the board itself. So the theory goes, the more sticks of ram in your comp, the more times the same signal is split between them. So it would get weaker.

However, since I am on the same board as you, on a g0 q6600 @ 3.8 with 4 sticks of 2 gig gskill and I have seen ZERO problems with my current setup. I never once had to remove sticks of ram. I installed vista 64 at 3.8 and the 8 gigs in sync at 950.

Then again, I have seen alot of people mentioning this problem in the past. Just because I always have 4 sticks of ram in all my comps and have never had a problem that was solved by removing a pair of ram stix!

Back to the top! That processor of yours, wanna do me a favor and place your system on stock settings, with speed step disabled, fsb ram and cpu on Auto, so its factory voltages, and run core temp 0.96.1 and list that VID of your processor, then run prime or something that will use some CPU power, and make sure the VID value in core temp doesnt change, then tell me that VID!

I hope intel didnt decide to weed out their low VIDs and sell em as low wattage processors!!

--Lupi

Overclocking with more ram is a bit trickier.

Imo, 2x2g sticks fair a bit better than 4x1g sticks.

What are you using to read the temps? 45C is rather low for 3.6GHz on an AC7.