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

TiN · Sep 14, 2009

BTW, what about mixed-GPU SLI. For example 9800GX2 + single 9800GTX, or 285GTX + 260GTX ? Is it possible in future ?

sveetsnelda · Sep 14, 2009

TiN said:
Or you can use FRAPS on those games, which support timedemo recording and replays.

Gotcha.... So record my own demo, replay it, measure it with FRAPS?

TiN · Sep 14, 2009

Yes, exact idea. You can get some graphs like this:

JrRacinFan · Sep 14, 2009

sveetsnelda said:
Gotcha.... So record my own demo, replay it, measure it with FRAPS?

Do it with SLI enabled/disabled

sveetsnelda · Sep 14, 2009

JrRacinFan said:
Do it with SLI enabled/disabled

Understood. Sorry, I just assumed that.

JrRacinFan · Sep 14, 2009

Sorry didnt mean to come off as a douchebag. I'm just excited !!!

sveetsnelda · Sep 14, 2009

Haha. You didn't at all. You were just being helpful.

sveetsnelda · Sep 14, 2009

3dmark 03 just finished without SLI enabled, but I cant run it with a higher resolution in the demo version (1024x768 is the default). I'm thinking this wont be a very good test unless I go track down my old 3dmark 03 disc. I pulled 43306 with SLI off.

Specs:
Q6600 (G0 stepping) @ 3.6ghz
Asus Maximus II (P45)
2 PNY 9800GTX+ cards at stock clocks.

test with SLI is running now.

Mussels · Sep 14, 2009

sveetsnelda said:
3dmark 03 just finished without SLI enabled, but I cant run it with a higher resolution in the demo version (1024x768 is the default). I'm thinking this wont be a very good test unless I go track down my old 3dmark 03 disc. I pulled 43306 with SLI off.

Specs:
Q6600 (G0 stepping) @ 3.6ghz
Asus Maximus II (P45)
2 PNY 9800GTX+ cards at stock clocks.

test with SLI is running now.

i suggest 3dmark06, but only bother keeping track of the SM2.0 and 3.0 scores - ignore CPU/total

sveetsnelda · Sep 14, 2009

I can do that... A full copy came with my Maximus II. Any specific resolution or settings you suggest? I ran it already at the default settings, but it doesn't scale very well. I threw in my roommate's GTX285 and I only went from 16k to 18-something.

Like you said though, this was the total with the CPU tests included.

sveetsnelda · Sep 14, 2009

3dmark 03 just finished. Default settings @ 1024x768:

Before-43306 3DMarks
After-71568 3DMarks

Wile E · Sep 14, 2009

sveetsnelda said:
I can do that... A full copy came with my Maximus II. Any specific resolution or settings you suggest? I ran it already at the default settings, but it doesn't scale very well. I threw in my roommate's GTX285 and I only went from 16k to 18-something.

Like you said though, this was the total with the CPU tests included.

Run it at the highest res you can with AA and AF cranked up. Should help ease the cpu bottleneck, and put more stress on the cards.

TiN · Sep 14, 2009

sveetsnelda

Little confused with these DSDT's.

How to know where to insert lines? PCI0 section is always different.

Here we have ASUS P5B Deluxe DSDT from registry.

http://www.xdevs.com/sli/p5bd.dsl

And what exactly to insert?

All these stuff:

http://www.xdevs.com/kb/sli.png ?

sveetsnelda · Sep 14, 2009

Running 3DMark 06 at 1680x1050 with AA 8x and AF 16x (VSYNC off, of course).

Maybe AF16x was a bit overkill.... my poor 9800GTX+ is having a rough time so far.

sveetsnelda · Sep 14, 2009

TiN said:
How to know where to insert lines? PCI0 section is always different.

Didn't you already post a dump of your DSDT a little bit ago? I replied back.

Or are you trying to write a guide?

TiN · Sep 14, 2009

Sorry, that was DSDT for Gigabyte P965.

Now I trying with ASUS P5B Deluxe. Already installed fresh XP and two cards.

sveetsnelda · Sep 14, 2009

I see.

Put the SLIC function and data just before these lines (in other words, put it right after the end of the (_SB) entry):

Code:

    Name (WOTB, Zero)
    Name (WSSB, Zero)
    Name (WAXB, Zero)

Here's the SLIC data (again, put it before the lines I listed above).

Code:

Scope (\_SB.PCI0)
{
    Name (SLIC, Buffer (0x9E)
    {
        "987134512781Genuine NVIDIA Certified SLI Ready Motherboard for ASUS X58 Motherboard3287-Copyright 2008 NVIDIA Corporation All Rights Reserved-765289891023(R)"
    })
    Device (WMI1)
    {
        Name (_HID, "pnp0c14")
        Name (_UID, "MXM2")
        Name (_WDG, Buffer (0x14)
        {
            /* 0000 */    0x3C, 0x5C, 0xCB, 0xF6, 0xAE, 0x9C, 0xBD, 0x4E,
            /* 0008 */    0xB5, 0x77, 0x93, 0x1E, 0xA3, 0x2A, 0x2C, 0xC0,
            /* 0010 */    0x4D, 0x58, 0x01, 0x02
        })
        Method (WMMX, 3, NotSerialized)
        {
            CreateDWordField (Arg2, 0x00, FUNC)
            If (LEqual (FUNC, 0x41494C53))
            {
                Return (\_SB.PCI0.SLIC)
            }

            Return (0x00)
        }
    }
}

sveetsnelda · Sep 14, 2009

3dMark 06 finished.

1680 x 1050 8xAA/16xAF

Q6600 G0 @ 3.6ghz
Asus Maximus II (P45)
2 x PNY 9800GTX+

SLI off/on
-----------------------
SM2.0 - 3130/5575
HDR/SM3.0 Score - 2282/4195

Not bad at all, IMO.

Wile E · Sep 14, 2009

Yep. It's working all right.

Now, will this work on X38/X48? And is there a post with a guide?

sveetsnelda · Sep 14, 2009

I'm going to have to do some more testing/messing around tomorrow. I have to work early. I should have been in bed hours ago.

sveetsnelda · Sep 14, 2009

Wile E said:
Yep. It's working all right.

Now, will this work on X38/X48? And is there a post with a guide?

Yeah, It'll work.

There isn't really a guide written up since I just got it patched a few hours ago. Currently, it's not very easy to get working unless you've been following this thread closely or you want to do a lot of reading. I plan on making it easier. Some people just wanted to test it out, so I released it.

I'm hoping to get rid of the SLIC check entirely so it's as simple as just installing the driver.

anatolymik · Sep 14, 2009

Sveetsnelda can you explain to me general rules in according to i should put SLIC data? I want to write utility that automaticly will put this into ACPI table.

TiN · Sep 14, 2009

Just injected modified DSDT into registry. If everything will boot and work now, I'll install driver and report.

Is there any method to get SLIC string from working system , to check if it inserted correctly?

All that tables confuse me

sveetsnelda · Sep 14, 2009

anatolymik said:
Sveetsnelda can you explain to me general rules in according to i should put SLIC data? I want to write utility that automaticly will put this into ACPI table.

Sure. Although I don't know the ASL language very well, I can tell you what worked for me. I just put the data after the end of the "Scope(\_SB_)" entry (at the end of the bracket... like this:

Scope(\_SB_)
{
Stuff
}
<put Scope(\_SB.PCI0) stuff here>

While you're welcome to write an application that does this, I'll likely have the SLIC check defeated tomorrow, so this part wont even be necessary. You should just be able to install the driver, enable SLI, and play.

I already know where the functions are and how they work, I just need to figure out how to patch it.

anatolymik · Sep 14, 2009

Thanks sveetsnelda. I think i complete it by tommorow

System Name	selfmade caseless :D
Processor	Intel ES
Motherboard	EVGA X299 DARK ES :)
Cooling	LN2
Memory	G.SKILL DDR4 @ 3600MHz
Video Card(s)	GTX Kingpin's
Storage	Intel P4500 4TB
Display(s)	Philips BDM4350
Case	none
Audio Device(s)	Creative X-Fi
Power Supply	EVGA NEX 1500W's
Mouse	None (trackball)
Keyboard	Steelseries APEX RAW and Corsair K-something
Software	W2k8 R2 64bit SP1, FreeBSD 12
Benchmark Scores	http://www.hwbot.org/community/user/tin?oldstyle=true

System Name	selfmade caseless :D
Processor	Intel ES
Motherboard	EVGA X299 DARK ES :)
Cooling	LN2
Memory	G.SKILL DDR4 @ 3600MHz
Video Card(s)	GTX Kingpin's
Storage	Intel P4500 4TB
Display(s)	Philips BDM4350
Case	none
Audio Device(s)	Creative X-Fi
Power Supply	EVGA NEX 1500W's
Mouse	None (trackball)
Keyboard	Steelseries APEX RAW and Corsair K-something
Software	W2k8 R2 64bit SP1, FreeBSD 12
Benchmark Scores	http://www.hwbot.org/community/user/tin?oldstyle=true

System Name	Dual Build Streamer
Processor	Ryzen 7900x3d : Ryzen 4600G
Motherboard	AsRock B650E Steel Legend : Giga B450i Aorus
Cooling	Custom Water 1x420 : Stock
Memory	32GB T-Force Deltas : 16GB Dominator Platinums
Video Card(s)	PowerColor 7900 XTX Liquid Devil: iGPU
Storage	20+ TB
Display(s)	Sammy 49" 5k Ultrawide
Case	Custom White Painted Phanteks Enthoo Pro 2
Audio Device(s)	Onboard : Onboard
Power Supply	EVGA 1200W P2
Mouse	Corsair M65 RGB Elite White
Keyboard	Hyperx Origins 65
Software	Windows 10

System Name	Dual Build Streamer
Processor	Ryzen 7900x3d : Ryzen 4600G
Motherboard	AsRock B650E Steel Legend : Giga B450i Aorus
Cooling	Custom Water 1x420 : Stock
Memory	32GB T-Force Deltas : 16GB Dominator Platinums
Video Card(s)	PowerColor 7900 XTX Liquid Devil: iGPU
Storage	20+ TB
Display(s)	Sammy 49" 5k Ultrawide
Case	Custom White Painted Phanteks Enthoo Pro 2
Audio Device(s)	Onboard : Onboard
Power Supply	EVGA 1200W P2
Mouse	Corsair M65 RGB Elite White
Keyboard	Hyperx Origins 65
Software	Windows 10

System Name	Rainbow Sparkles (Power efficient, <350W gaming load)
Processor	Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard	Asus x570-F (BIOS Modded)
Cooling	Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory	2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s)	Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage	2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s)	Phillips 32 32M1N5800A (4k144), LG 32" (4K60) \| Gigabyte G32QC (2k165) \| Phillips 328m6fjrmb (2K144)
Case	Fractal Design R6
Audio Device(s)	Logitech G560 \| Corsair Void pro RGB \|Blue Yeti mic
Power Supply	Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse	Logitech G Pro wireless + Steelseries Prisma XL
Keyboard	Razer Huntsman TE ( Sexy white keycaps)
VR HMD	Oculus Rift S + Quest 2
Software	Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores	Nyooom.

System Name	The ClusterF**k
Processor	980X @ 4Ghz
Motherboard	Gigabyte GA-EX58-UD5 BIOS F12
Cooling	MCR-320, DDC-1 pump w/Bitspower res top (1/2" fittings), Koolance CPU-360
Memory	3x2GB Mushkin Redlines 1600Mhz 6-8-6-24 1T
Video Card(s)	Evga GTX 580
Storage	Corsair Neutron GTX 240GB, 2xSeagate 320GB RAID0; 2xSeagate 3TB; 2xSamsung 2TB; Samsung 1.5TB
Display(s)	HP LP2475w 24" 1920x1200 IPS
Case	Technofront Bench Station
Audio Device(s)	Auzentech X-Fi Forte into Onkyo SR606 and Polk TSi200's + RM6750
Power Supply	ENERMAX Galaxy EVO EGX1250EWT 1250W
Software	Win7 Ultimate N x64, OSX 10.8.4

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

New Member

Served 5k and counting ...

New Member

Served 5k and counting ...

New Member

New Member

Freshwater Moderator

New Member

New Member

Power User

New Member

New Member

New Member

New Member

Power User

New Member

New Member

New Member