[Solved] PCI-E x16 slot compatibility?

Forum Graphics & Displays : Graphics Cards [Solved] PCI-E x16 slot compatibility?

Hello. I purchased this socket 478 mobo to upgrade my dead system: http://www.newegg.com/Product/Prod [...] star%20478

I can't seem to get the mobo to detect my ATI 5770. I talked to Biostar support and they said that because my card is pcie 2.0 it isn't compatible with the x16 slot I have. I know that I've heard otherwise on toms and elsewhere. I need to know if I can get my card working in this mobo.

Thanks,

Chris

------------------------------ Phenom II X4 955 @ 3.82 (Zalman 9900)
asus 780v mobo
4gb Corsair DDR2 800
HIS 5870 1GB
Reply to cgintz

2.0 is backwards compatible with 1.0

is you power supply up to spec? its not unheard of for older boards having issues with new cards though.

------------------------------ defeating idiot fan boys since 2008.
Reply to ct1615

My psu is 700w. The card works fine in my other system. Is there a way I can update the mobo to fix the issue? I have the latest bios and drivers.

------------------------------ Phenom II X4 955 @ 3.82 (Zalman 9900)
asus 780v mobo
4gb Corsair DDR2 800
HIS 5870 1GB
Reply to cgintz

sounds like its up to date already then

------------------------------ defeating idiot fan boys since 2008.
Reply to ct1615

So the mobo is just too old then?

------------------------------ Phenom II X4 955 @ 3.82 (Zalman 9900)
asus 780v mobo
4gb Corsair DDR2 800
HIS 5870 1GB
Reply to cgintz

Best answer

The card is PCIe 2.1, not 2.0. Unless Biostar has an update to provide PCIe 2.1 compatibility, it will not work on that motherboard.

Consult these two other threads wherein the same situation was experienced and the same conclusion was drawn.

http://www.tomshardware.com/forum/ [...] adeon-5670

http://www.tomshardware.com/forum/ [...] displaying

The simple fact is that PCIe 1.0 and 1.0a need a proper update from the motherboard manufacturer to provide compatibility support for PCIe 2.1 cards. If they don't have such an update, then that's that. Per my discussion with a representative from XFX:

"That is just the way that it is. The motherboard manufacturer didn't implement the proper support before discontinuing support for the product. Some of them did and some did not. It happens when new standards come out."

My advice: Get a 4000-series card or something from the nVidia camp.

Message edited by RazberyBandit on 04-19-2010 at 09:41:36 PM

Reply to RazberyBandit

Ok, that sucks. Thanks Raz.

------------------------------ Phenom II X4 955 @ 3.82 (Zalman 9900)
asus 780v mobo
4gb Corsair DDR2 800
HIS 5870 1GB
Reply to cgintz

Best answer selected by Cgintz.

------------------------------ Phenom II X4 955 @ 3.82 (Zalman 9900)
asus 780v mobo
4gb Corsair DDR2 800
HIS 5870 1GB
Reply to cgintz

It does suck, and I'm sorry I was the bearer of bad news.

I went back and forth with XFX for 3 days trying to get to the root of the issue on behalf of the OP's of the two threads I linked, only to end up with a truly disappointing outcome.

Reply to RazberyBandit

Luckily I didn't buy the 5770 for this build. It is gonna go towards my next higher end build. I wonder if anyone knows a decent PCIE x16 1.0 card I could pick up cheap.

Thanks Raz

------------------------------ Phenom II X4 955 @ 3.82 (Zalman 9900)
asus 780v mobo
4gb Corsair DDR2 800
HIS 5870 1GB
Reply to cgintz

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