Max Memory per Slots

Mark98T

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Mar 8, 2015
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Hi there, I have an old motherboard asus p5p800s. In the official site I found this mobo support EM64T and I have a pentium 4 521 HT that also support em64t.

In the official site "2 x 184-pin DIMM Sockets support max. 2GB"
what is it mean? 2gb/slot or 2gb maximum for mobo? And does my mobo support 64-bit OS?

Don't say this mobo is old and buy new pc, as this PC is from my cousin and I have no money for buying new one.