PCIx I and 2 Compatability

NoEcho

NoEcho

2[H]4U
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Aug 14, 2001
Messages
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My ASRock 939 Dual-SATA2 has a PCIx 1 socket. Most new cards are PCIx 2. Will they play nicely?

Basically I'm wondering if...

a) they are mutually incompatible, or
b) a I card will work in a 2 socket but not vice versa, or
c) either way, any way, PCIx version of video card and mobo will get along.
 
I do not have a pcix slot on your motherboard, you have a pci-express slot.
And the new version is back compatible.
 
Everything is backwards and forwards compatible. But yeah, it's PCI-E, not PCI-X. Those are completely different.
 
Just to clarify:

You have a PCI-Express Slot, its abbreviated as PCIE.
PCX, is an older technology and a forerunner.

PCIE2 is the next specification of PCIE, however since current GPU's do not exeed the PCIE specification, for now, they are completely interchangeable without performance variation. However once GPU's exceed the PCIE's bandwidth, then PCIE2 will be a better choice, so there is no botteneck between GPU - Mobo - Proc.
 
pc1x1 said:
Just to clarify:

You have a PCI-Express Slot, its abbreviated as PCIE.
PCX, is an older technology and a forerunner.
Click to expand...

Actually it was PCI-X - Peripheral Component Interconnect Extended and before that:
PCI - Peripheral Component Interconnect.
 
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