Windows XP showing 2GB of RAM from 4GB installed in a new high-end system
Posted on 2006-10-21
I have just finished custom building my desktop PC and faced many problems that I’ve solved in the past week. Most of these problems were ASUS motherboards related. I first tried a P5N32 SLI SE Deluxe that didn’t want to work with my DDR2 memory at 800 MHz regardless of the overwhelming evidence on the net of failure for such attempts. Then I changed the motherboard 3 times and tried MSI and Gigabyte with no luck. I have finally settled for the ASUS P5WDG2 WS Professional. This motherboard is great (so far) and has recognized my 800 MHz memory after manually altering the related BIOS options, but for some reason, the motherboard thinks I’m overclocking and it increased the voltage. Thus the heat increases and I decided to overclock the CPU from 2.93 MHz to 3.2 MHz anyway!
Here is my PC configuration:
1 x ASUS P5WDG2 WS Professional motherboard
1 x Intel Core 2 Extreme X 6800 (running @ 3.2 GHz Default is 2.93 GHz)
1 x eVga nVidia GeForce 7950 GX2 (1GB)
4 x 1GB RAM - Super Talent 1GB 800MHz DDR2 (item # T800UB1GC4) CL 4-4-3-8
1 x WD Raptor 150GB 10000 RPM (C drive)
1 x WD 320GB 7200 RPM (D drive for storage)
The motherboard has built in HD sound, FireWire, RAID, and other features.
No matter what I do, my Windows XP Pro SP2 won’t recognize the 4GB of RAM installed. The motherboard does recognize the 4GB at 800 MHz and as DDR2. Windows on the other hand only shows 2GB of RAM! The previous motherboard I tried (P5N32 SLI SE Deluxe based on nVidia nForce 4 SLI 16X chipset) did show 3GB of RAM in Windows, but this new one; the ASUS P5WDG2 WS PRO (based on Intel 975X chipset)that I’ve settled for only shows 2GB in Win XP. I did update the BIOS to the latest version available on ASUS website (v 408) with no luck. Is there a solution for this? I know I can’t see 4GB in Windows, I know about the 4GB RAM limit and I want to keep the RAM for future proofing my system (Windows Vista). All I want is for Windows to see more than 2GB of RAM, at least 3GB, because I run a ton of applications in the background and I want to utilize more of my RAM. Any suggestions?