MaximusIV-Extreme Thread

[fab-45]

strange

i unstall win seven pack 1 and it s ok

but the Gflops no go up to 65

whit pack 1 i have 108Gflops for 4.6Ghz

i don t know where is the problem

help me please

Thanks

[Malik]

Guys i have big problem ...

Today i mounted my second 570 and here we go:

1. When i plug two card like in manual - no sli
2. When i plug to 2th pcie slot and 4th pcie slot - no sli

I try with different gpu drivers, with/without sound card etc. Always the same thing: two cards are in system, but no sli, one of card has UNKNOWN bios, but when i put only one card - everything is ok. Both cards have good bios etc.

Here screen how that looks:

[Praz]

1. When i plug two card like in manual - no sli
2. When i plug to 2th pcie slot and 4th pcie slot - no sli

You may need to reinstall Windows.

[Malik]

OK, i will try

[Leeghoofd]

you set the dip switches to on ?

[Malik]

Yes, all switches are ON, in bios i see two cards ( both on 8x pcie native ), only in system i cant run SLI, and second card has code 43.

[Raja@ASUS]

Yes, all switches are ON, in bios i see two cards ( both on 8x pcie native ), only in system i cant run SLI, and second card has code 43.

Is this a a brand new Win 7 install or an old one from another motherboard?

In device manager try un-installing the device then reboot. Upon re-boot wait for Windows to recognise the new VGA device and wait for the prompt to say the device is either ready to use or reboot request. After the reboot you may need to re-install the GPU drivers again to set SLI.

If that does not work, you may have to reinstall the OS as originally suggested.

-Raja

[Malik]

OK, Raja - reinstall in progress, because nothing working: reinstall gpu drivers etc.

One question to you, which set is better: GPU in 1 and 3 slot ( like in manual, but 8x pcie ), or GPU in 2 and 4 slot ( nf200 and 16x on both cards ) ?

[Raja@ASUS]

OK, Raja - reinstall in progress, because nothing working: reinstall gpu drivers etc.

One question to you, which set is better: GPU in 1 and 3 slot ( like in manual, but 8x pcie ), or GPU in 2 and 4 slot ( nf200 and 16x on both cards ) ?

For almost all circumstances I'd use the 8x native slots myself.

-Raja

[MusicIsMyLife]

strange

i unstall win seven pack 1 and it s ok

but the Gflops no go up to 65

whit pack 1 i have 108Gflops for 4.6Ghz

i don t know where is the problem

help me please

Thanks

The reason should be AVX. Sandy Bridge supports AVX and Windows 7 SP1 enables the usage of AVX. Since the newest version of LinX supports AVX, the new instructions of Sandy Bridge are in use. When you have stability issues with SP1 your cpu simply isn't stable anymore because of AVX.

When software uses AVX-instruction set there can be a massive performance bump - just like LinX does.

Either you don't use SP1 and AVX or you install SP1, use AVX and try to get your cpu stable again.

BTW: I had the same "problem".

[fab-45]

thanks for for your request MusicIsMyLife

but AVX love big Vcore !

too be ok at linX i put 1.52V !

is it very important to turn on AVX for games ?

Thanks

[MusicIsMyLife]

is it very important to turn on AVX for games ?

I don't think so - for now.

AVX is a new instruction set, only used by Sandy Bridge so far. Up to now software developers didn't have a real benefit using these instruction set. But this may change when AMD Bulldozer is launched. Bulldozer is rumored to support AVX, too.

When there is enough hardware in the wild supporting AVX it becomes more interesting for developers to support it. And maybe even in games.

In Benchmarks like 3DMark Vantage I didn't notice any difference between Windows 7 and Windows 7 SP1.

[fab-45]

Thanks

[owikh84]

Guys i have big problem ...

Today i mounted my second 570 and here we go:

1. When i plug two card like in manual - no sli
2. When i plug to 2th pcie slot and 4th pcie slot - no sli

I try with different gpu drivers, with/without sound card etc. Always the same thing: two cards are in system, but no sli, one of card has UNKNOWN bios, but when i put only one card - everything is ok. Both cards have good bios etc.

Here screen how that looks:

I had GTX580 SLI issue with Win7 X64 SP1 (Slipstreamed)
Solved by reinstalling Win7 X64 without SP1, installed GPU driver, then SP1 pack. SLI is working again.

[Malik]

I had GTX580 SLI issue with Win7 X64 SP1 (Slipstreamed)
Solved by reinstalling Win7 X64 without SP1, installed GPU driver, then SP1 pack. SLI is working again.

After reinstalling w7 64bit i installed newest gpu driver - the same problem. I try like You, but im affraid there is something wrong.

[Raja@ASUS]

After reinstalling w7 64bit i installed newest gpu driver - the same problem. I try like You, but im affraid there is something wrong.

What code are you getting in Device Manager after the reinstall?

[Malik]

Code 43

[Raja@ASUS]

Code 43

Can you remove the card in the first slot and just boot the board with a GPU in the third slot (hook up your monitor to it). Enter the OS and see if you can install drivers to that card after Windows loads the generic VGA drivers.

-Raja

[Malik]

Can you remove the card in the first slot and just boot the board with a GPU in the third slot (hook up your monitor to it). Enter the OS and see if you can install drivers to that card after Windows loads the generic VGA drivers.

-Raja

I put gpu to third slot and everything is ok. When i enter to os - drivers works ok. I tried also 570 plus 9800 gt - works fine. Only SLI with two 570 - failed.

[m4gg0t]

How are the new BIOS??

[Raja@ASUS]

I put gpu to third slot and everything is ok. When i enter to os - drivers works ok. I tried also 570 plus 9800 gt - works fine. Only SLI with two 570 - failed.

This is a software issue I think - not sure on what causes it, but the hardware is ok according to what you've reported back.

-Raja

[Raja@ASUS]

1409 , changes Over 1407 – adds bios rom flash back -> from one rom to another -> to fix problem of BCLK unable to change.
‘System will shutdown to do BIOS Flashback. Do not turn off AC while you see the ROG Connect LED blinking. It will take up to 8 minutes, please be patient.’


http://www.mediafire.com/file/3z99je...-ASUS-1409.rar

[Malik]

I think the same - this is software problem. But one thing ... fresh system, fresh drivers - problem, old system etc. - problem :/

[noobzed]

Code 43

I remember this bug, was the gfx card bios causing this problem, in fact I flashed a very very slighty moded bios to my card ( not moded via nibitor ) and seems to was OK, bios crc etc .. but motherboard was definetly not OK to make them function in SLI, each card alone was OK, but together gave me that error, I flashback to ORIGINAL bioses, and all was OK even in SLI, so my proposition to you, try a different BIOS ?

[Malik]

I will try this

Because maybe you have right. I flash this new one card with bios from second card. Maybe here is problem.

UPDATE:

Still the same

I think ... problem is with mobo.