I have a 1.3 Gigahertz P4 Compaq Presario 7000T computer running Windows XP professional with 4 availible slots for Rambus ram chips. The computer is used mainly for games, word processing, video editing, and music creation.
Currently there are two 64Mb Non-ECC chips in the motherboard, with 2 dummy chips. The chips are made by Samsung. Today I bought 2 Samsung 256Mb ECC chips off of Ebay. I'm wondering if that was a mistake. I have no experience whatsoever in upgrading memory, and my original plan was to take out the two dummy chips and place the 2 256Mb RDRAM chips in, giving me a total of 640Mb of RDRAM. If I do that, will my computer run proberly, will it not even start up, or will it maybe damage something? I read on a web site that someone said it is possible to mix the ECC and Non-ECC chips by doing something to the BIOS, causing the computer to assume all chips are Non-ECC. Is that true? If so, what?
If it turns out that it is not possible to mix ECC and Non-ECC RDRAM, will I at least be able to install the 2 256Mb ECC chips where my 2 64Mb Non-ECC chips were to give me 512mb of RDRAM?
Any help, tips, or ideas would be greatly appreciated. Thanks a lot.