My system originally had 512MB PC3200 DDR400 (Nanya NT512D64S8HC0G-5T) in slot 1.
Upgraded about a year or so ago with 512MB PC3200 DDR400 CL3 (PNY 6464TPDXA8G09), which would not show up in slot 2 so moved to slot 3 and worked fine.
Upgraded yesterday with 2x 512MB PC3200 DDR400 (Nanya NT512D64S8HC0GY-5T), which I iserted into slot 2 and 4.System would not boot, just hung whith blank screen, fans working and no error beeps.
I removed the new ram and inserted in slot 1 and 3 wher the original sticks were and booted no problem, so the new ram is not faulty.
I then tried the two new ram sticks in slot 1 & 2 to check slots were working and this booted fine.
I tried a third Nanya stick in slot 3 and system would not boot.
I thought that the PNY stick was possibly to blame but 3 sticks of Nanya will not work.
Do I need to have either 2 or 4 sticks in to work, will 3 not work?
Should I buy another Nanya stick to have 4, would this work?
My MOBO is (MSI K8N Neo2 Platinum (MS-7025)) with AMD 64 3200+.
Please, Please help.