Hello Guys, I inherited a Dell PC with an Intel 845g pci accelerated motherboard and it runs a bit slow. Three questrions: (1) Just what kind of memory does this mobo have? I believe it to be PC 133 unbuffered 168 pin non-ecc SDR SDRAM dimms. Is this correct? (2) Can the onboard "Intel Extreme Graphics" be upgraded? (3) It also has onboard audio and I tried to add a sound card bgut could not get the PC to recognize it even after dis-abling onboard audio in the setup. It only recognizes the sound card as "an unidentified multi-media device".