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Quote:

SLI, for those who don’t know, is the process of taking two Nvidia graphics cards and allowing them to work in parallel to render to a single monitor. In theory this doubles the power, getting more FPS for video games. Great right? Except due to encryption, only a limited amount of motherboards can actually support SLI. That is, until now. Russian hackers at xDevs discovered that the newer encryption is based around string identifiers. This can be modified within the operating system itself, so in theory any motherboard could work. Be wary, this could brick your system; but if successful, you’ll have more power without shelling out for an officially SLI supported motherboard.

Tested setups:

Quote:

Intel P965 (ASUS P5B Deluxe) + 2 x GeForce 6600LE by xDevs.com Intel P45 (ASUS MAXIMUS II Formula) + 2 x GeForce 9800GTX + by sveetsnelda Intel X48 (Gigabyte X48T-DQ6) + 2 x GeForce GTX 260 216sp by DeDaL Intel X48 (ASUS P5E64WS Evolution) + 2 x GeForce 7900GS by Xtremelabs.org Intel X38 (ABIT IX38QuadGT) + 2 x GeForce GTX 260 by TheWolf Intel P55 (ASUS MAXIMUS III Formula) + 2 x GeForce 6600LE by xDevs.com Intel P45 (ASUS P5Q Deluxe) + 2 x GeForce GTX 285 by Death or Glory Intel X48 (ASUS Rampage Extreme) + 2 x GeForce 6800Ultra by Turrican Intel P45 (Gigabyte EP45-UD3P) + 2 x GeForce 8800GT (Win7 32bit) Intel P45 (Gigabyte EP45-DS4) + 2 x GeForce GTX 260 by cxghjcqr Intel P965 (Gigabyte P965-DQ6) + 2 x GeForce 6600LE by TiN Intel X48 (DFI LP LT X48) + 2 x GeForce 7900GS by TiN Intel X48 (ASUS Rampage Formula) + 2 x GeForce 9800GTX by Ghostleader AMD 790X (Gigabyte GA-MA790X-UD4P) by akula AMD 790X (DFI LP DK 790FXB-M2RS) + 2 x GeForce 9800GT by aGeoM Intel P35 (Abit IP35ProXE) + 2 x GeForce GTX 260 (192sp + 216sp) by TheWolf Intel 5520 (Supermicro X8DAH+) + 2 x Quadro FX 4800 (GT200GL) on Windows 2008 R2 by derGhostrider

Source (Hackaday)

Original site.

I remember seeing something like this a while back, but I don't think it was this exact article.

 

[FSF-Foxhound]

Looks great!

 

[JKBenchmarks]

So the technology was there all along but it was disabled and encrypted?

 

[systemaxd]

Quote:

Originally Posted by JKBenchmarks So the technology was there all along but it was disabled and encrypted?

Basically, from my reading/understanding. Since the NB's (not including i7/i5 and amd) on all past motherboards controlled the signals from the cpu to the gpu(s). The check marks that the nvidia drivers looked for to allow SLI were not there on all non sli certified boards. This soft mod to the OS files gives all the right answers to the nvidia drivers when checking and thus SLI is enabled.

EDIT: found the post about how it might have been implemented on personal/concept level which apparently is the case now

Quote:

Originally Posted by TiN_EOF post date 08-06-2009, 05:44 AM In general words, support of SLI depends like this: NV Driver asks mobo BIOS - Hi, report your chipset model? Chipset/BIOS: Here you are, Intel X48. Driver: Go away, blocked chipset detected. Chipset: Ok-ok, no sli, peace. or Driver asks: Chipset model? Chipset: Intel 5400 Driver: Go away, blocked chipset detected. Chipset: ***, i have NF200 chips here, and paid for sli. Driver: Huh, ok. Driver asks videocards: Model names? GPU1: GTX 285, xxx sp, xxxx memory, xxx gpu clocks, xxxx mem clocks. GPU2: GTX 280, xxx sp, yyyy memory, yyy gpu clocks, zzzz mem clocks. Driver: ***, blocked combination, go away And so on. If we just answer any correct words to driver - then all that check-only fuctions will be passed, and driver core itself enable everything. That's my idea, but I think it's quite close to real checks.

whole topic here http://www.xtremesystems.org/forums/...=231383&page=2

 

[Kamikaze127]

Hey my motherboard's close brother is on that list for SLIed 9800GT's.

 

[Shadow_UGZ]

This is extremely impressive. I wonder how nVidia will respond to this?

 

[systemaxd]

Quote:

Originally Posted by Shadow_UGZ This is extremely impressive. I wonder how nVidia will respond to this?

With out re-coding there drivers to block out the unsupported chipsets, this could be qualified as free speech; and hacks/mod come out for stuff all the time and only few get in trouble. That and with 6x0i, 7x0i, and x58 chipsets (unsure on amd's side) nvidia has lost some control on limiting SLI support in hacks since we now have NV based chipsets and intel based chipsets that sli can be found on.

 

[Mysticality]

Source (Hackaday)

Was waiting for someone to Russian Reversal this.

 

[hackm0d]

I just wonder, how will I get the SLI ribbon connectors?

 

[battosaii]

oh yes!!!

though i think im gona go Crossfire 5870 with my next set

 

[nathris]

Ooo P5Q Deluxe works... too bad I've already spent more on my single 4870 than a GTX 285 (stupid XFX).

If I still had my 9800GTX+ though I would be very intrigued.

 

[PaRaDoX_883]

I am quite impressed with this. It's a new kind of mod, and I like the concept.

If we overclock to increase performance, how's this any different?

I hope this gets popular.

 

[MisterAutomatic]

Quote:

Originally Posted by hackm0d I just wonder, how will I get the SLI ribbon connectors?

Post a Wanted thread in the Marketplace for one.

 

[tombom]

Quote:

Originally Posted by hackm0d I just wonder, how will I get the SLI ribbon connectors?

ebay.

amazon?

OCN.

This article is really impressive. Too bad it's probably not something that Nvidia wants.

 

[SUPER PISSED]

Quote:

Originally Posted by tombom ebay. amazon? OCN. This article is really impressive. Too bad it's probably not something that Nvidia wants.

Yeah, well Nvidia can stick it up their ass. This is great.

 

[Amdkillsintel]

this is interesting.

 

[kurosu]

Anyone test this out yet?

 

[Swiftes]

In soviet russia, SLI patches you.

Now I got that out of the way, it seems the DDR2 version of my board works, this could be interesting!

 

[FearSC549]

You know what impressed me more than the news? The immaturity of the people in this thread.

 

[weebeast]

Best news ever

I wont try it out because i dont got nvidia cards at the moment