Go Back   Computer Forums > General Computing > Hardware
Click Here to Login
Join Computer forums Today


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-26-2007, 06:40 PM   #1
Solid State Member
 
Adventure Man's Avatar
 
Join Date: Dec 2007
Posts: 18
Exclamation Pci-express 2.0 Backwards Compatibility Confusion

Hey guys, I have a question as to the backwards compatibility of pci-express 2.0 with the older pci-express 1.0a specification. My motherboard which I got a few days ago has the older 1.0a spec. My motherboard is a Biostar P4M900-M4 ver.6.x with latest Bios from this September. Here is the website for that motherboard: http://www.biostar.com.tw/app/en-us/...t.php?S_ID=283

I would like to purchase (and install on this motherboard) either an 8800GT,8800 GTS from nvidia or 3850,3870 from ati, all four of which use the new pci-express 2.0 specification and require motherboards with pci-express 2.0.
http://www.zipzoomfly.com/jsp/Produc...tCode=10007125
http://www.zipzoomfly.com/jsp/Produc...tCode=10007249
http://www.zipzoomfly.com/jsp/Produc...tCode=10007405

I've heard so many conflicting reports, yes it is compatible, no they are not compatible etc.... Then I see some people whose older mobos with 1.0a specification worked with 2.0 video cards. AND I see some people whose older mobos with 1.0a did not work with an 8800GT. Can we just settle this issue with a simple yes/no or is the answer mobo specific, or is this just ultra complex?

Lastly, is it just a BIOS update that is needed to make these two specifications more compatible?

Thanks a bunch for your time guys.

A.M.
__________________

Adventure Man is offline   Reply With Quote
Old 12-26-2007, 11:27 PM   #2
Fully Optimized
 
esa193's Avatar
 
Join Date: Aug 2006
Posts: 4,210
Send a message via AIM to esa193
Default Re: Pci-express 2.0 Backwards Compatibility Confusion

do bios update to be safe
and i havnt herd any probs
runs just fine
__________________

__________________
antec 900, q6600, 4G, 500G, 160G, 9800gtx, 780i, 47in 1080ptv, 5.1 surround sound

MacArthur wrestling pwns!
esa193 is offline   Reply With Quote
Old 12-27-2007, 01:33 AM   #3
Omnipotent One
 
Atomic Rooster's Avatar
 
Join Date: Apr 2006
Location: USA
Posts: 11,161
Send a message via AIM to Atomic Rooster Send a message via Yahoo to Atomic Rooster
Default Re: Pci-express 2.0 Backwards Compatibility Confusion

PCIe 2.0 video cards are not fully backwards compatible. Graphic cards designed for v2.0 will work with v1.1 only. They will not work in v1.0 and v1.0a motherboards.



PCI Express 2.0 Wiki
Atomic Rooster is offline   Reply With Quote
Old 12-27-2007, 09:17 AM   #4
Golden Master
 
worshipme's Avatar
 
Join Date: Oct 2007
Posts: 5,603
Default Re: Pci-express 2.0 Backwards Compatibility Confusion

But almost all new mobos have PCI-E 1.1.
__________________
AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.
worshipme is offline   Reply With Quote
Old 12-27-2007, 11:55 AM   #5
Fully Optimized
 
esa193's Avatar
 
Join Date: Aug 2006
Posts: 4,210
Send a message via AIM to esa193
Default Re: Pci-express 2.0 Backwards Compatibility Confusion

almost all mb have 1.1.....
__________________
antec 900, q6600, 4G, 500G, 160G, 9800gtx, 780i, 47in 1080ptv, 5.1 surround sound

MacArthur wrestling pwns!
esa193 is offline   Reply With Quote
Old 12-27-2007, 01:03 PM   #6
Solid State Member
 
Adventure Man's Avatar
 
Join Date: Dec 2007
Posts: 18
Default Re: Pci-express 2.0 Backwards Compatibility Confusion

UPDATE:

I got an email from tech support at Biostar. The pci-express 2.0 video cards WILL NOT work on this particular motherboard. Stick with regular pci-express x 16.

A.M
__________________

Adventure Man is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 04:44 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0