RAM problem (Windows 7)

[rapidman]

Hello everyone

This is my rig

*OVERCLOCKED* Intel Core i7 920 D0 Stepping (SLBEJ) 2.66Ghz @ 4.00GHz Max/
Asus Rampage II Extreme Intel X58 Motherboard /
Corsair XMS3 6GB (3x2GB) DDR3 PC3-12800C9 1600MHz DDR3 Bundle 1

Powercolor ATI Radeon HD 4890 1024MB GDDR5 TV-Out/Dual DVI/HDMI (PCI-Express) - Retail

OCZ ModXStream Pro 600w Silent SLI Ready Modular Power Supply

Hitachi Deskstar 7K1000.B 320GB SATA-II 16MB Cache - OEM (0A38018)

My problem is that although i installed Windows 7 x64(64bit) the System info shows only 4GB of the 6GB ram i have and rarely shows 6GB. And by the way apps like CPU-Z allways show that i have 3 sticks.

I found out that many had this problem but i cant find an easy solution online. Does anybody know how to fix this annoying problem?

 

[Tweaker]

Post up pics of system information, CPUZ and task manager please

 

[Plec]

Is this a pre-clocked bundle or one that you built and tweaked yourself?

If its the first you would be best served contacting OcUK directly via the customer services forum - as they will be the best ppl to advise you and there's usually someone lurking about.

If it's your own build put everything back to stock and see if your sytsem recognises the full 6 gig - as it could be a symptom of a flaky clock or corrupt memory (either way you'll need the system at stock to troubleshoot).

Assuming it is your own build/clock - once at stock, even if the memory recognises all 6gig, i would memtest each stick to rule out corrupt memory. If they all pass - you will have to consider that your clock settings need fine tuning.

EDIT: or you could just try booting with 1 stick and then swapping it out for another - if one fails you have your culprit.

(other problems can include, flaky MC on the CPU, bent pins in the CPU slot, a bad heatsink connection, flaky DIMM slot (another easy test and can be coupled with the memory swap outs) - but BIOS settings/faulty memory are the easiest to test for now.)