Compatibility: PCI 2.1 Card - PCI 1.0 Slot

[Ali Bassam]

I have an Intel D946GZIS.

It has a PCIe 1.0 slot.

I'm going to buy a Sapphire Radeon HD6450.

This video card is a PCIe 2.1 card.

All over the internet, people say, wikipedia says, that 2.x cards are compatible with 1.x slots.

HOWEVER, when it comes to 2.1 card - 1.0 slots, there's some problems.

How can I know if my card will work? What are these problems?

 

[jackson1420]

If it fits it may just clock down to the lower speed. If the slot doesn't match then you might have an issue. I believe standards in place will allow the card to work.

 

[clutchc]

PCI Express is a backward compatible standard.

 

[ASHISH65]

@op get gt 610 at same price which performs mostly same and also compaitable with your mobo

 

[smeezekitty]

Your board has PCI-E 2.0 according to Intel website.

 

[ASHISH65]

Your board has PCI-E 2.0 according to Intel website.

it has pci exp 1.0. only after x38 chipset have pci 2.0

- http://ark.intel.com/products/23503/Intel-Desktop-Board-D946GZIS

 

[smeezekitty]

I see. There is conflicting information. But it is still version 1.1 not 1.0.
http://ark.intel.com/products/27725/Intel-82946GZ-Graphics-and-Memory-Controller
1.1 doesn't really have the compatibility issues that 1.0 has.

 

[ASHISH65]

only after p31/g31 has pci 1.1. donot know why it is saying 1.1 there

- http://en.wikipedia.org/wiki/List_of_Intel_chipsets

 

[Ali Bassam]

My Brain will explode, I've been searching all over the net, I don't wanna buy something that won't work, I can buy the GT610, but people say that HD6450 is better (same price), WHAT SHOULD I DO ????

 

[ASHISH65]

gt 610 and hd 6450 are very close.go with gt 610