Diagnotic Lights 3&4 come on which the manual tells me means "Memory modules detected but a memory failure has occurred". I have two existing memory modules. I have followed the manual advice and have tried remove them and re-inserting them and have found out that both cards still work fine but if either of the cards is put into slot DIMM_1. the computer will not start up and I get the diagnotic lights 3&4. However both cards can make the computer work if either are installed into slot DIMM_2. Does anyone have any idea what else I can do or does this mean that DIMM_1 is broken and will need to be replaced?
Many thanks
According to the manual you have 4 dimm slots. Put both modules into dimm 3 and 4 and see if that cures you no boot problem.
Thanks for the suggestion. I just tried it but unfortunately it didn't work. The manual recommended memory configurations seems to say you have to have a matched pair of memory modules in slots DIMM_1 & DIMM_2 before you can use slots DIMM_3 & DIMM_4. When I put them into DIMM_3 & DIMM_4. I just got the same diagnostic lights 3&4 and the computer will not boot. Could it be something to do with a loose connection? I currently I have two 512MB memory modules. If i can't get DIMM_1 to work again if I installed a 1GB memory module would this help speed things up or do you really need to have two functioning matched memory modules for optimum performance (The computer works but it is painfully slow with only one memory card)? Thanks
Thanks for the suggestion. I just tried it but unfortunately it didn't work. The manual recommended memory configurations seems to say you have to have a matched pair of memory modules in slots DIMM_1 & DIMM_2 before you can use slots DIMM_3 & DIMM_4. When I put them into DIMM_3 & DIMM_4. I just got the same diagnostic lights 3&4 and the computer will not boot. Could it be something to do with a loose connection? I currently I have two 512MB memory modules. If i can't get DIMM_1 to work again if I installed a 1GB memory module would this help speed things up or do you really need to have two functioning matched memory modules for optimum performance (The computer works but it is painfully slow with only one memory card)?
Thanks
Yes you can run a 1G ram module in order to mantain same amount of ram. Did you try using ram in dim 2 and 4 or 2 and 3? This might save you purchasing more ram.
Double post, also answered HERE
Bev.
Thanks DCX4EVER. I tried this and it worked dim2 & dim4 work ok. It looks like if anything is put into dim1 or dim3 the computer will not boot. There must be something wrong with that half of it? I guess this just means that I won't ever be able to have 4 memory modules working, but things are fine with just these 2 working. Big help Thanks.