Hi all. This is my problem. Im trying to upgrade my RAM memory from 2GB to 4GB (I run Windows Vista 64) My Motherboard, with a Core 2 Duo 6600 installed Asus P5N32-SLI Premium Old Ram installed Kingston DDR2 800, 4-4-4-12, 2x1GB, 2v. New Ram installed A-Data DDR2 800, 4-4-4-12, 2x1GB, 2v. Once I installed the second memory pair ( both kingston and Adata installed properly in motherboard slots so they can run in Dual Channel) I noticed windows vista started to run very slow. Even the window starting is now x2-x3 longer than before, and all applications I run in windows work very slow too. Some games are unplayable. I tried each memory set independently, and both work very well at 800 setting, timing 4-4-4-12 and 2v. With both memory sets installed I tried everything (I think) in BIOS. -Tried at 800, with all timing in auto. Windows go slow. -Tried at 800, forcing timing to 4-4-4-12, same thing. -Tried at 800, forcing timing to 4-4-4-12, and forcing 2v. Same result. -Tried at 667, all in auto. Windows slow again - ... at 667, forcing timing to 5-5-5-15. Same. - ... at 667, forcing timing to 5-5-5-15 and forcing 1.9v. Again Windows go very very slow. Im about to give up and buy anpther set of A-Data memories, so if it is a compativility problem I will solve it. But I still have the doubt that maybe is a motherboard problem, or maybe changing some setting in Bios I will solve that issue. Any advice will be very welcome
Welcome to HWF Run memtest 86: Memtest86+ - Advanced Memory Diagnostic Tool with all memory installed for a good few hours, any errors and you need to start swapping them round till you find the rogue one(s) Other than that i think that running two different manufacturers memory no matter how alike their specs are is never a good idea - I've had no end of hassle trying it before now anyway personally
