Memory Detection Issue - Advice?

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Hey,

I sold my i7 rig a few years ago and recently had an urge to get back into gaming. So, I've resurrected my old computer, which is about 6/7 years old.

It boots up, everything works, but there's just one problem which is preventing me from playing the games I wanted to. Only 1GB of the 2GB's of RAM installed are being detected... What gives?

I've swapped the sticks around, tested each bay with a different stick, tried other memory units (inc. the original sticks that came with the factory PC, before customisation). Even ran the Crucial memory test utility, and no errors were found.

Specs:

ASUS P5VD2-NVM/S
Intel Pentium 4 3.06GHz
Crucial 2x1GB DDR2
BFG GeForce 7800GS OC

I've ordered a 650w PSU from you guys, thinking that it may play a part in the problem as I have a 500w currently installed.

I'm at a lose end. Sadly, I don't have enough money for a new PC capable of running COD4 at 250fps

 

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Got this reply from Yahoo Answers, but I can't really make any sense of it.
I do, but I don't... If that makes sense?

max. 4GB, DDR2 667/533/400 MHz, non-ECC, un-buffered memory

trouble is the above statement does not tell you
Double sided/single sided
high density/low density
Cas Latency CL4 CL5 CL6
memory shape, eg 16x16 or 32x8 are same size but different shape

from what you tell me and what i know, using certain memory arrangements
one dimm can effectively cancel out a socket this is because some wires are
common between the two sockets, but they must only be used by one of them
thus this IS what decides the max memory and it IS also what decides if you can fit
two dimms side by side.

so you probably have the WRONG (what i call) SHAPE thus if you look on
your dimms if it says 64x64 then you may need 128 x 32 instead. get the idea?

so the dimms are probably fine, but because they use the wrong wires due to their
arrangment they cancel out the adjacent slot. because they kind of short the two
dimms together.

hope that all makes sense.
so you need a different arrangement of dimm

So, will I be able to just buy some new RAM with the correct arrangement?
Also, would there even be any point in investing more money into this machine? If I can sort the memory issue by simply changing to new units, I'll must likely have to get a new CPU too. Then, probably a new GPU, but the mobo only supports AGP chipsets.

 

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What PSU did you buy?

650w

Reset your BIOS?

Tried that!