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How To: Enable SLI on pre-i7/i5 hardware

aGeoM said:
Hi guys

I would like to tanks to all of you envolved in this project. a BIG :toast:


I tested the hal mod in Win7 x64, with an AMD 790FX board and 2 9800GTs (w/ SLI bridge), is a no go.
I managed to do all necessary steps to it activate SLI, DSDT patch, hall substitution, etc...

http://img.techpowerup.org/090916/noSLI.jpg

*Note: Everst and RW, reads the DSDT table from bios, not from registry.

Be well...
Click to expand...

I know about it. Wait a while. it'll not work on AMD. Only Intel. I fixed it tommorow.
 
@ageom
You might even need an SLIC string from a 7x0a.
 
Aha... I think I understand.

It currently only patches the device ID (3400) if it sees vendor ID 8086?
 
sveetsnelda said:
I don't know much about the hal modification for Windows 7 64-bit since I haven't tried it yet, but I'm confident if you installed the modified NVIDIA driver right now, SLI would enable.

If you need the driver to load in its unmodified form (WHQL certified), anatolymik's solution is the only way to do it (so far), though.

Are you sure the HAL was actually replaced (and windows didn't recover)? Could you check the modified date and make sure?
Click to expand...

HALL modified date is 16 ‎September ‎2009, ‏‎18:49:14.

I can use any kind of driver, modded or not, ATM I'm running 190.62 WHQL W7x64.

I'd also tried the DSDT mod directly in BIOS, the DSDT mod was valid, but I faield to do overall BIOS mod ( MEMINIT and a couple more modules went, misplaced, I blinded trusted in cbrom195 to do it, insted of I manualy correct it), one DFI M3H5 down until I can get an SPI programmer.

With an ASUS Crosshair III/BIOSTAR 790GX A+, I can´t get the DSDT patched in to resgistry, BSOD on reboot

Note: I also had to do a different way on DSDT mod, HEXed the iasl dumped dsdt??.dat, for adding SLI certificate (DSDT size and checksum must be corrected) and then asl /loadtable for patching registry. For verifying DSDT table, I use RW/ACPI Table/press "F3" to load table file, if everything is ok we can see DSDT table and SLIC incerted.

DSDT mod0.jpg


To make the binary 8bit sum to zero just mark the entire code in e.g. winhex, calculate its 8bit hash. Then use the odd windows calculator in hex mode, byte.
Enter the calculated hash (byte) and operate logical 'NOT' plus one.
Modify a zero byte (at the end of code) with the result and recalculate again the hash of the binary, the result should be zero then.
Click to expand...
 
Last edited:
aGeoM,

I sent a modified 64-bit driver to TiN last night that will work for you. You'll have to put Windows into "Test signing" mode to load it, though (since it's modified). It'll at least enable it for you until anatolymik makes some progress. Contact TiN and see if he has it hosted or if he can send it to you. I'd send it, but I'm at work.
 
sveetsnelda said:
aGeoM,

I sent a modified 64-bit driver to TiN last night that will work for you. You'll have to put Windows into "Test signing" mode to load it, though (since it's modified). It'll at least enable it for you until anatolymik makes some progress. Contact TiN and see if he has it hosted or if he can send it to you. I'd send it, but I'm at work.
Click to expand...

Thanks.

I'm already in "Test mode", I can test it. OK.
 
Some clarification on current status and which DSDT to use:

OSs currently supported:

XP 32-bit
Vista 32-bit
Vista 64-bit
Windows 7 32-bit
Windows 7 64-bit

If you're using any of the Vista/Windows 7 drivers OR revision 2 of the XP 32-bit driver, you need to use an ASUS SLIC. No other SLIC will work!

If you're using anatolymik's HAL mod OR revision 1 of the XP 32-bit driver, you need to use a SLIC that matches your motherboard's manufacturer! If you're using this method, there are a few board manufacturers that will *not* work. Abit is one of them. Basically, if your motherboard's manufacturer has made an X58 SLI motherboard in the past, it will work.
 
Does XP 64 support SLI usually (with an SLI chipset)?

If so, it'll be easy to patch and I'll take care of it after work.
 
Is there a link or TuT for Windows 7 32-bit SLI layout to setup/install?

Edit: good morning BTW. lol
 
YES ! i did it , wow i thought i was confused , but i did it , so i have SLI on my GA -EP45 - DS3R - Win7 32Bit :)

thanks you guys you are smart as PHUK :)
 
djzander said:
can i help in some way , to move things along , and have a win7 32bit ver ?
Click to expand...

cant you just install the 64 bit?? Why use 32bit anyways?
 
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