News
 

Bookmark and Share

(2) 

The upcoming launch of Intel X38 chipset that will support PCI Express 2.0 interface raises some compatibility questions regarding the old and new interface versions. It is quite evident that PCI Express 2.0 interface is backward compatible with the previous version. However, will the owners of older mainboards be able to use PCI Express 2.0 graphics cards? Luckily, PCI-SIG gave a positive answer to this question: "new PCIe 2.0 adapters running at 5.0 GT/S can plug into existing PCIe slots and run at the slower rate of 2.5 GT/S".

Nevertheless, there may still exist some compatibility issues between the contemporary mainboards and upcoming graphics solutions. Asustek Company has actually warned its users against such issues recently.

It turns out that Asus Blitz mainboards based on Intel P35 chipset and using a special CrossLinx chip to support “PCI Express x8 + PCI Express x8” configurations have limited compatibility with graphics cards supporting PCI Express 2.0 bus. In particular, the primary PCIEX16_1 slot complies with the PCI Express 1.1 standard that is why it supports PCI Express 2.0 graphics cards. The secondary PCIEX16_2 slot meets only PCI Express 1.0/1.0a requirements that is why if there is a PCI Express 2.0 graphics card installed in it, the system may not be able to recognize this graphics card as well as the graphics card installed into the primary PCIEX16_1 slot.

In other words, the Asus Blitz mainboard owners should install PCI Express 2.0 graphics cards only into the primary PCI Express x16 slot marked as PCIEX16_1. So, these mainboard cannot have the future PCI Express 2.0 graphics cards working in CrossFire or SLI mode.

Note that these limitations have been revealed only for the Blitz mainboard series that uses CrossLinx chip. Other Asus mainboards on Intel P35 chipset should have no problems with PCI Express 2.0 graphics cards support.

Discussion

Comments currently: 2
Discussion started: 08/20/07 10:00:45 AM
Latest comment: 08/28/07 08:12:00 AM

[1-1]

1. 
That's why you shouldn't buy motherboards with a "hack" solution to SLI/Crossfire.
0 0 [Posted by:  | Date: 08/20/07 10:00:45 AM]
Reply

[1-1]

Add your Comment




Latest News

Thursday, August 28, 2014

12:22 pm | AMD Has No Plans to Reconsider Recommended Prices of Radeon R9 Graphics Cards. AMD Will Not Lower Recommended Prices of Radeon R9 Graphics Solutions

Wednesday, August 27, 2014

9:09 pm | Samsung Begins to Produce 2.13GHz 64GB DDR4 Memory Modules. Samsung Uses TSV DRAMs for 64GB DDR4 RDIMMs

Tuesday, August 26, 2014

6:41 pm | AMD Quietly Reveals Third Iteration of GCN Architecture with Tonga GPU. AMD Unleashes Radeon R9 285 Graphics Cards, Tonga GPU, GCN 1.2 Architecture

Monday, August 25, 2014

6:05 pm | Chinese Inspur to Sell Mission-Critical Servers with AMD Software, Power 8 Processors. IBM to Enter Chinese Big Data Market with the Help from Inspur

Sunday, August 24, 2014

6:12 pm | Former X-Bit Labs Editor Aims to Wed Tabletop Games with Mobile Platforms. Game Master Wants to Become a New World of Warcraft