> Have you tried to use both of the PC2100's and NO HP ?
yep
> You can only use non-ECC memory modules.
> Is your memory NON-ECC
yep
?http://h20000.www2.hp.com/bc/docs/support/UCR/SupportManual/
TPM_30551...
> HP part numbers - from compaq website:
>
> Memory (DIMMs) 266-MHz (PC2100)
> 128MB DDR ****282433-B21
> 256MB DDR ****282434-B21
> 512MB DDR ****282435-B21
not got the PC here now, but will check up - thanks Bob
Ian
> http://www.nextag.com/compaq-evo-d510/search-html
> shows specs/ memory for sale.