I have a Dell XPS 400 with 4 512MB ram sticks (original) for a total of 2GB ram. I decided to upgrade this to 4 1GB ram for a total of 4gb ram.
1. When I inserted the new ram and restarted, I got the bios beep codes: 1-3-2.
2. I switched back to the old ram, and all was fine.
3. So I switched to the new ram and confirmed it was seated - same problem.
4. So, I updated the bios to the latest version - same problem.
5. So I reset CMOS by switching the jumper per instructions - same problem.
6. So I tried inserting the Ram one stick at a time - same problem.
The old working ram is:
* 533 MHz, Dual Interleaved, DDR2, SDRAM
The new non-working ram is:
* 667 MHz, DDR2, SDRAM (Dell p/n: SNPU8622CK2/2G)
The new ram is listed as compatible for this system using the service tag number on the dell support site. Dell will not provide support because the computer is no longer under warranty.
My guess is that the memory speed isn't supported by the motherboard, but most sites list 533 and 667 as being supported for a Dell XPS 400. I don't really want to pay shipping or restocking fees every time to try another ram and return it.
The part number on my motherboard is listed as: 316736100010_R01)A00. An additional number underneath that one is: CN-0FJ030-70821-623-F09K.
Is there any way I can get a definitive answer as to what memory is supported on my specific motherboard?