Hey folks.
This is my first post here at Tom's Hardware (I actually just joined yesterday), but I've been following the website for a few years now. I recently (literally one week ago) purchased a brand new computer system for myself, from parts, which I just finished assembling a few days ago. I went out on a limb and bought two 4770s before Tom's review of them had been released: I guess I just had a gut feeling they would be great. Anyways, before I get into my problem, here's my setup:
GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX Motherboard
OCZ StealthXStream OCZ700SXS 700W ATX12V PSU
Intel Core 2 Extreme QX6700 (This is not new, I scavenged it from my old setup)
G.SKILL PI Black 4GB (2 x 2GB) 240-Pin DDR2 SDRAM
2x XFX Radeon HD 4770
Windows XP Professional (32-bit)
Everything on the computer is working just fine, except for the graphics cards. I have them connected with the CrossFire bridge, and I have CrossFire enabled in Catalyst, but they do not seem to actually run in CrossFire. I have run 3dMark06 with one card and with both of them in Crossfire, and the difference was only about 600 points (~11400-11700). Not only is this lower than the score I used to get with my old system (which I used to run with an 8800 GTX), but World of Warcraft (the only game I currently have installed - I've been too frustrated to get anything else) won't run above 20 FPS.
In CCC, under 'Information Center>Graphics Hardware' this is what is displayed:
Primary Adapter
Graphics Card Manufacturer Powered by ATI
Graphics Chipset ATI Radeon HD 4770
Device ID 94B3
Vendor 1002
Subsystem ID 2901
Subsystem Vendor ID 1682
Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x8
BIOS Version 011.022.003.000
BIOS Part Number 113-B74302-105
BIOS Date 2009/03/27
Memory Size 512 MB
Memory Type GDDR5
Core Clock in MHz 750 MHz
Memory Clock in MHz 800 MHz
Total Memory Bandwidth in GByte/s 51.2 GByte/s
Disabled Adapter
Graphics Card Manufacturer Powered by ATI
Graphics Chipset ATI Radeon HD 4770
Device ID 94B3
Vendor 1002
Subsystem ID 2901
Subsystem Vendor ID 1682
Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x8
BIOS Version 011.022.003.000
BIOS Part Number 113-B74302-105
BIOS Date 2009/03/27
Memory Size 512 MB
Memory Type GDDR5
Core Clock in MHz 750 MHz
Memory Clock in MHz 800 MHz
Total Memory Bandwidth in GByte/s 51.2 GByte/s
I think the problem lies in the the fact that my second card is "Disabled," but this is the first time I've ever run CrossFire so I don't know if that's even it, let alone how to fix it. I've seen a few posts, both on different forums and here at Tom's, about people have problems with 2x HD 4870s doing the same thing, but not only have I not found a solution to that problem, but I can't even find another person with 4770s to see if they know how to fix mine.
Any help would be greatly apprectiated. I'm sorry about the wall of text, but I wanted to be pretty thorough in my first post so that people can have the information they need to assist me. If you need any other information just let me know, I'll be around checking this post pretty reguarly.
Thanks!
This is my first post here at Tom's Hardware (I actually just joined yesterday), but I've been following the website for a few years now. I recently (literally one week ago) purchased a brand new computer system for myself, from parts, which I just finished assembling a few days ago. I went out on a limb and bought two 4770s before Tom's review of them had been released: I guess I just had a gut feeling they would be great. Anyways, before I get into my problem, here's my setup:
GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX Motherboard
OCZ StealthXStream OCZ700SXS 700W ATX12V PSU
Intel Core 2 Extreme QX6700 (This is not new, I scavenged it from my old setup)
G.SKILL PI Black 4GB (2 x 2GB) 240-Pin DDR2 SDRAM
2x XFX Radeon HD 4770
Windows XP Professional (32-bit)
Everything on the computer is working just fine, except for the graphics cards. I have them connected with the CrossFire bridge, and I have CrossFire enabled in Catalyst, but they do not seem to actually run in CrossFire. I have run 3dMark06 with one card and with both of them in Crossfire, and the difference was only about 600 points (~11400-11700). Not only is this lower than the score I used to get with my old system (which I used to run with an 8800 GTX), but World of Warcraft (the only game I currently have installed - I've been too frustrated to get anything else) won't run above 20 FPS.
In CCC, under 'Information Center>Graphics Hardware' this is what is displayed:
Primary Adapter
Graphics Card Manufacturer Powered by ATI
Graphics Chipset ATI Radeon HD 4770
Device ID 94B3
Vendor 1002
Subsystem ID 2901
Subsystem Vendor ID 1682
Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x8
BIOS Version 011.022.003.000
BIOS Part Number 113-B74302-105
BIOS Date 2009/03/27
Memory Size 512 MB
Memory Type GDDR5
Core Clock in MHz 750 MHz
Memory Clock in MHz 800 MHz
Total Memory Bandwidth in GByte/s 51.2 GByte/s
Disabled Adapter
Graphics Card Manufacturer Powered by ATI
Graphics Chipset ATI Radeon HD 4770
Device ID 94B3
Vendor 1002
Subsystem ID 2901
Subsystem Vendor ID 1682
Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x8
BIOS Version 011.022.003.000
BIOS Part Number 113-B74302-105
BIOS Date 2009/03/27
Memory Size 512 MB
Memory Type GDDR5
Core Clock in MHz 750 MHz
Memory Clock in MHz 800 MHz
Total Memory Bandwidth in GByte/s 51.2 GByte/s
I think the problem lies in the the fact that my second card is "Disabled," but this is the first time I've ever run CrossFire so I don't know if that's even it, let alone how to fix it. I've seen a few posts, both on different forums and here at Tom's, about people have problems with 2x HD 4870s doing the same thing, but not only have I not found a solution to that problem, but I can't even find another person with 4770s to see if they know how to fix mine.
Any help would be greatly apprectiated. I'm sorry about the wall of text, but I wanted to be pretty thorough in my first post so that people can have the information they need to assist me. If you need any other information just let me know, I'll be around checking this post pretty reguarly.
Thanks!