PCI-e, different versions??

[gazz292]

when my parents upgrade their office computer in the next month, i'll be getting their old un, it's about 3 years old, P4 3.5 'multi scaling' ?? (it's not a dual core, but does something similar).

it's got onboard gfx and sound etc, and a pci-express slot that's free, so i will use that for one of ultimarcs arcade vga2 cards, as i will be running a hantarex polo 2 montior in my cab, but my brother mentioned there is or was 3 versions of the pci-express protocol or someting like that,

anyone know if that's true, i'm thinking this pooter may be most affected if it is, as pci-e came out about the time this pooter was made, so it'd be just my luck its the wrong one for the arcade vga card (like when i finaly decided to get a hdmi player, 3 months later blue ray became the official version, i'd have prolly bought a betamax vcr if i was old enough when the vcr's came out... my dad chose right, with a piano buttoned top loader vhs machine)

[Smoker]

the 'multi scaling' you refer to is actually called hyper-threading. The CPU will show up in the OS as having 2 cpu's, but the second only uses 5% of the main CPU core. You can usually turn this off in the bios if you have problems with it.
There are currently pci-express versions 1.0 , 2.0 & 2.1 but they are backwards compatible. You shouldn't have any issues running an AVGA card as long as you have a full size PCI-E Slot on the motherboard.