Crossfire/SLI on any board with 2+ PCI-E

gurusan · 8 Nov 2009 at 17:43

I posted this awhile back in the motherboards section but not sure how many people go there.

Basically, you can use this technique to run SLI on your P45 or X48 board......or SLI on an AMD crossfire chipset (790FX and such)

http://xdevs.com/e107_plugins/content/content.php?content.30

Q:Will this mod work on my ASUS XXX-XXX / Gigabyte YYY-YYY / Vendor Z model AAA-BBB-CCC motherboard to get SLI?
A: We don't give any 100% guarantee, but as far almost all motherboards which have two PCI-Express slots can do SLI. Only correct ID reports to videodriver and physical ability to drive all videocards from single hub/complex is necessary to make SLI technology enabled. There are some rare cases, when even mod from this article wouldn't help, by we have no such cases yet.

Q:Can I have SLI on my X58 board, with no official support of SLI (low-end X58 boards, server boards on Intel 5520 chipset, etc.)?
A:Yes. All is needed - just run SLI String Installer and press your vendor button or ASUS if there is none.

Happy · 8 Nov 2009 at 18:18

Will give this a go since I don't have to install XP like the other guide needed. Will report back with my probable failure

gurusan · 8 Nov 2009 at 18:19

Good luck

Happy · 8 Nov 2009 at 20:09

Hmmm

Part 1 check:-

Off for part two now to see if it actually works.

I did the HAL mod and it took around 30 seconds, then shutdown put a SLI bridge on and reboot, NCP enable SLI and away you go

Marine Iguana · 8 Nov 2009 at 22:31

Awesome time will give this a go in a mo

gurusan · 8 Nov 2009 at 22:38

happy, wait...so it works?

Marine Iguana · 8 Nov 2009 at 22:50

Damm i haven't installed win 7 yet as i haven't got my ssd yet might try with vista can't be too hard

OrphanBoy · 8 Nov 2009 at 22:50

Wow! How are nv going to counter this? Fixing something like this would likely bust existing x58 support.
Shame I just bought a board with SLI support - I would loved to have tried this on my old NF4 Ultra-D

Happy · 8 Nov 2009 at 22:53

gurusan said:
happy, wait...so it works?

Yep, in the Vantage screenshot you can see my old P11747 run using the same system but with only 1 GTX 260 running, I scored just under 18K with two running on 'P' settings. So there is a defiantly a boost

Marine Iguana · 8 Nov 2009 at 23:06

Whoops i had the new 195.xx drivers installed which disable this apparently try again

Edit: I hate vista

Edit2: I fail at making it work with vista

Bloomfield · 8 Nov 2009 at 23:07

Happy said:
Yep, in the Vantage screenshot you can see my old P11747 run using the same system but with only 1 GTX 260 running, I scored just under 18K with two running on 'P' settings. So there is a defiantly a boost

Oh, i thought it hadn't worked cause of the screenshot you posted

.

Happy · 8 Nov 2009 at 23:43

Marine Iguana said:
Whoops i had the new 195.xx drivers installed which disable this apparently try again

Edit: I hate vista

Edit2: I fail at making it work with vista

I have you done step 7?

Section F. Windows 7 64-bit, method 2, modded OS HAL library

Step 1 Download SLI String Installer v1.81 and unpack in to folder on HDD. Run slistringinstall.exe.

http://www.xdevs.com/sli/SLIStringInstaller v1.81.zip

Step 2 Press ASUS, regardless of real motherboard, to patch Windows registry with SLIC certificate
Step 3 Disable UAC
Step 4 Download HAL modification tool v0.9 and unpack it into some directory. Run install.cmd with administrator rights.

http://www.xdevs.com/sli/HALMod v0.9 alpha.zip

Step 5 Reboot. SLI must work now. If you can't boot anymore, try pressing F8 and selecting "Disable reboot on system failure" or "Last good configuration" options.

May work, but you're on an old school OS

Marine Iguana · 8 Nov 2009 at 23:48

Happy said:
May work, but your on an old school OS

Oi less of that

mine says takeown.exe is not a valid win32 blah blah and such balls

Happy · 8 Nov 2009 at 23:49

You using 32bit or 64bit?

Marine Iguana · 8 Nov 2009 at 23:55

64bit

Happy · 8 Nov 2009 at 23:58

Not really much point in trying the modded drivers when they are crap for folding. Hurry up and get the SSD!

Marine Iguana · 9 Nov 2009 at 00:00

funds are lacking lol

also never in stock when i do have enough money to throw around

sod SLI ill wait for My German Evga friend to see about my RMA tomorrow

Happy · 9 Nov 2009 at 00:03

I forgot you had the X58 on RMA, just wait until you can use legitimate SLI

Marine Iguana · 9 Nov 2009 at 00:05

Happy said:
I forgot you had the X58 on RMA, just wait until you can use legitimate SLI

I cant i have to experiment with stuff i cant help myself just gotta touch.