Thanks, but I tried this already. Comes back with the following results - it thinks the MB has four slots, but I know it physicaly has 2.
* Maximum Memory Capacity: 4096 MB
* Currently Installed Memory: 1024 MB
* Available Memory Slots: 2
* Number of Banks: 4
* Dual Channel Support: N.A.
* CPU Manufacturer: GenuineIntel
* CPU Family: Intel(R) Pentium(R) 4 CPU 3.00GHz Model 3, Stepping 4
* CPU Speed: 3000 MHz
Then it quotes "Our System Scanner was able to find some of the data we need to make a recommendation, but we need more information to ensure a compatible match." But try to pick my system and it's not listed....
Last time I called HP, they were rubbish - premium rate number and I spoke to iddiots so not keen on that route.