My system P4 1500 on QDI Platinix2 V1.xx. 3 slots for memory. Was running 256 pc133 on its own - no prob. Added 2 more sticks of same, and system runs like treacle even though 768mb ram showing on system. All sticks run fine on their own or in pairs, but once over 512mb I have trouble. QDI site shows this board could take 3 gb memory.
Any help on this particular mixture would be appreciated.
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