You should easily manage stable 450+MHz on FSB but there are better mobos for overclocking
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Help Me Solve my 5770 Crossfire Issue... Please! ;)
- Thread starter TaKeN
- Start date
You should easily manage stable 450+MHz on FSB but there are better mobos for overclocking
Yeah I had ASUS P7P55D motherboard with x16/x4 slots and 5770's in crossfire and had the same problem games where very choppy and bad fps lag so I decided to swap the board for the ASUS P7P55D PRO which has x8/x8 slots and its 100 times better , everything is now mint and smooth as hell, I would say LoadsaMoney has hit the nail on the head though.
If youre close enough your welcome to test them in my rig ( in sig )
Thankyou for your kind offer, but to save wasting your time I'll just buy a different mobo
Thanks, I thought it would lose a few FPS! not feel like complete horribleness.
Post away, I've no problem with it
Soldato
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what does gpuz say about the pcie link speed of your cards ?
8x 8x ? or maybe 1x
8x 8x ? or maybe 1x
what does gpuz say about the pcie link speed of your cards ?
8x 8x ? or maybe 1x
16x.. and 4x
Sorry.. I have since edited as I was wrong in saying 8x and 4x.
Last edited:
Soldato
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Shouldn't that be 16x and 4x ?
Doesn't seem right to me
no, because as soon as you populate the second slot it drops the first slot to 8x
Soldato
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That's interesting...
My p5k is a p35 and runs at 16x / 4x when populated
My p5k is a p35 and runs at 16x / 4x when populated
It is
It plays better on a single card, I'm waiting for my X38 mobo off the MM to arrive you see.
Then I'll install that and crossfire them again
It is
It plays better on a single card, I'm waiting for my X38 mobo off the MM to arrive you see.
Then I'll install that and crossfire them again
nice
they do work very well in crossfire at 8x 8x silky smooth on dirt2
As others have posted, the problem you have here is the asynchronous nature of pushing data to your cards when one can run at 16x and one can run at 4x.
Personal experience with a pair of X1900GTs in software crossfire back in the day showed me what a waste of time it was on a 16x\4x setup - this was on an old P5WD2 motherboard with the X955 chipset.
Your CPU isnt holding you back - Crossfire performance in Benchamrks scales with CPU speed, I've personally noticed.
At 2.4Ghz I was getting around 13K 3DMarks in 06.
At 3.6Ghz I was getting 20K+ 3DMarks in 06.
Get that board swapped out, and to be honest, go 16x\16x (X38 or X48 board). The more data you can feed your cards over the PCI-Ex bus the better in my opinion.
I've had nothing but great performance from my setup of dual 4870s on my X38 board (after I solved the VGA BIOS issue, lol!).
PS Will keep an eye on all these 5770 crossfire threads as Im interested in swapping to an Eyefinity setup in the future when it has some more game support.
Personal experience with a pair of X1900GTs in software crossfire back in the day showed me what a waste of time it was on a 16x\4x setup - this was on an old P5WD2 motherboard with the X955 chipset.
Your CPU isnt holding you back - Crossfire performance in Benchamrks scales with CPU speed, I've personally noticed.
At 2.4Ghz I was getting around 13K 3DMarks in 06.
At 3.6Ghz I was getting 20K+ 3DMarks in 06.
Get that board swapped out, and to be honest, go 16x\16x (X38 or X48 board). The more data you can feed your cards over the PCI-Ex bus the better in my opinion.
I've had nothing but great performance from my setup of dual 4870s on my X38 board (after I solved the VGA BIOS issue, lol!).
PS Will keep an eye on all these 5770 crossfire threads as Im interested in swapping to an Eyefinity setup in the future when it has some more game support.