ASUS P8P67 Pro 1305 does not support SLI!!!!!

[yym789]

I bought another GTX 570 (same brand) today.


wow.... I hate P8P67 pro bios ...........It may be bios problem.


Nothing difference within 2 cards and just can not SLI.... !!!!



I tested fine individual, just can not use in SLI.

Does some1 can tell how to downgrade from 1305 to 1204?

thanks

[Leeghoofd]

What was the first warning Bingo13 gave us when flashing to 1305...

[yym789]

What was the first warning Bingo13 gave us when flashing to 1305...

I think 1305 bios maybe did not add SLI authorize code.


Can you tell me what's the problem about my 570 SLI in your opinion?

Thanks

[Leeghoofd]

if I get my RMA GTX 460 tomorrow, I could try 460 SLI mate, don't have two the same cards here...

[crossg]

1305 works fine with the deluxe mobo

[yym789]

1305 works fine with the deluxe mobo

Can you tell me how to setup in bios for SLI ? I just set PCIE16X-3 run at X1.


Did I miss other setup in bios?

[zalbard]

Maybe you just didn't install the SLI bridge correctly? Try flipping it and see if it helps...
It is possible that it's just broken, too. So try a different one.

[Praz]

The SLI fix has already been posted.

5. If you are unable to enable SLI support with various versions of Nvidia drivers (especially 266 and up), please reinstall the OS with the latest BIOS installed. I know this is drastic, but the SLI key format has changed and the OS might not recognize the new key in the updated BIOS (especially if non released NV drivers were previously installed, drivercleaner will not clear this setting during an uninstall). This should not occur in future BIOS releases.

[crossg]

The SLI fix has already been posted.

Jesus I never would have flashed to 1305 if I had seen that.

Drastic measures!!

@yym789. Can you see both your cards in the NV control panel?

[yym789]

The SLI fix has already been posted.

yes, I installed fresh new win7+sp1 again and I also got failed SLI.

[yym789]

Jesus I never would have flashed to 1305 if I had seen that.

Drastic measures!!

@yym789. Can you see both your cards in the NV control panel?

Only 1 .......


I move 2 GTX570s to my friend's X58 system(ASUS P6T-D). SLI works fine.

wow,, Sad 1305 bios.

[yym789]

Maybe you just didn't install the SLI bridge correctly? Try flipping it and see if it helps...
It is possible that it's just broken, too. So try a different one.

I tried to use 3 different SLI bridge. Same result......

[crossg]

Only 1 .......


I move 2 GTX570s to my friend's X58 system(ASUS P6T-D). SLI works fine.

wow,, Sad 1305 bios.

That sucks. I didn't touch anything in my bios with regards to vid cards. Maybe try a reset to defaults in bios and keep your fingers crossed.

[JohnMike]

I bought another GTX 570 (same brand) today.


wow.... I hate P8P67 pro bios ...........It may be bios problem.


Nothing difference within 2 cards and just can not SLI.... !!!!



I tested fine individual, just can not use in SLI.

Does some1 can tell how to downgrade from 1305 to 1204?

thanks

Had the same problem with my 570 GTX SLI on my P67 Deluxe and solve it by remove "Windows Loader" , installed another Windows7 edition and got my SLI setup working without changing the bios (1204)

Believe me it works, saw this solution in another fórum.... i still don't understand why....

[yym789]

Had the same problem with my 570 GTX SLI on my P67 Deluxe and solve it by remove "Windows Loader" , installed another Windows7 edition and got my SLI setup working without changing the bios (1204)

Believe me it works, saw this solution in another fórum.... i still don't understand why....

I downgraded to 1204...wow. SLI also can not work on 1204 bios.


Fresh win7 same result.

[Utnorris]

How did you downgrade from 1305? I thought you could not downgrade from 1305?

[JohnMike]

I downgraded to 1204...wow. SLI also can not work on 1204 bios.


Fresh win7 same result.

Fresh win7 without any "Windows Loader"?!.... Is your Win7 clean?!

[Sam_oslo]

I downgraded to 1204...wow. SLI also can not work on 1204 bios.


Fresh win7 same result.

I don't think it's a good idea to downgrade from 13xx to 12xx. They seams to have some micro-code update and HW-changes in 13xx. This may mess up other stuff if you downgrade.
I guess, you should just wait, they will fix 13xx soon, hopefully.

[yym789]

How did you downgrade from 1305? I thought you could not downgrade from 1305?

Here's a link

http://www.sendspace.com/file/r7n5o4

USE AT YOUR OWN RISK

1. If you haven't already, download BUPDATER version 1.22, make something to boot real DOS and make sure you have backed up your BIOS.

2. Enter BIOS, select F5 and load optimized settings. Save and exit F10. If you want to be ultra cautious you could check stability, in particular RAM using optimized defaults.

2. Reboot to real DOS and run "BUPDATER /pc /g".

3. Select 0804PRO2.ROM and yes to flash. Note that if you select and read a valid ROM image and decide not to go ahead the /pc switch seems to do something anyway and you will probably need to go into the EFI BIOS again and save your settings. Seems like a bug in BUPDATER for it to do that. It may post with "press F1 to enter setup" after detecting improper BIOS settings however if you have "ignore F1" set in the BIOS then it will try to boot with the improper settings so make sure you hit the delete key and get into the BIOS setup before trying to run your OS regardless and save your BIOS settings after checking to be safe.

4. Once you have successfully flashed the modded 0804 image 0804PRO2.ROM you can go into the BIOS setup and flash any of the other BIOS images up to 1305 using EzFlash. If you want to use 0804 you can flash over the modded one with the original 0804 to keep things straight if you wish.

0804PRO2.ROM will only work for images upto and including hardware version 2. If some time later Asus does another hardware version increment then a newer modified 0804 image would have to be made.


I haven't a PRO to test on so please post some feedback, good or bad. If you have any questions or are not sure of something please feel free to ask.

I used his mod bios downgrade bios from 1305 to 1204. Thanks for some_one

[yym789]

Fresh win7 without any "Windows Loader"?!.... Is your Win7 clean?!

My bought my Win7 U from store. It is clean system.

[some_one]

They seams to have some micro-code update and HW-changes in 13xx. This may mess up other stuff if you downgrade.

I think if you read the first page notes on the official BIOS thread you could easily be lead to thinking that.

Microcodes are temporary, and have to be loaded** each time you power up the CPU. They don't change things irreversibly.

By HW I think you mean FW (Firmware). The BIOS is the firmware and every BIOS change is a firmware change although there are modules within the BIOS that are firmware in their own right and may or may not be different from the previous BIOS release.

I can think of no reason for the downgrade to work any differently than it did before, however once the new Rev 3.0 boards come out that may make a difference. That is if it is still possible to downgrade to currently released BIOSes.

If the older BIOS will refuse to boot due to the B3 stepping being unknown to it then I would hope Asus has made a new ROM ID to reflect the stepping change as this will be a hardware change. In this case Asus would start afresh with a new series of BIOS ROMs hopefully sorting out many of the previous problems. we should find out soon enough. In the meantime I would advise against trying to downgrade the new B3 stepping boards with B2 stepping BIOS.

**technically microcodes updates don't have to be loaded at all but they are there to fix errata so are generally a good idea.

[Sam_oslo]

I think if you read the first page notes on the official BIOS thread you could easily be lead to thinking that.

Microcodes are temporary, and have to be loaded** each time you power up the CPU. They don't change things irreversibly.

By HW I think you mean FW (Firmware). The BIOS is the firmware and every BIOS change is a firmware change although there are modules within the BIOS that are firmware in their own right and may or may not be different from the previous BIOS release.

I can think of no reason for the downgrade to work any differently than it did before, however once the new Rev 3.0 boards come out that may make a difference. That is if it is still possible to downgrade to currently released BIOSes.

If the older BIOS will refuse to boot due to the B3 stepping being unknown to it then I would hope Asus has made a new ROM ID to reflect the stepping change as this will be a hardware change. In this case Asus would start afresh with a new series of BIOS ROMs hopefully sorting out many of the previous problems. we should find out soon enough. In the meantime I would advise against trying to downgrade the new B3 stepping boards with B2 stepping BIOS.

**technically microcodes updates don't have to be loaded at all but they are there to fix errata so are generally a good idea.

Whatever you call it, micro code, HW, FW. None of those complex stuff can explain the simple fact that you can't downgrade from 13xx to 12xx in a usual and straight forward way, according to yourself.

You, yourself have been providing a modded 0804 BIOS, and you have been describing an unusual proses for downgrading, but now you are saying "I can think of no reason for the downgrade to work any differently than it did before" ?
It was different, according to yourself. Has anything changed in 13xx since you provided modded 0804 BIOS or your view has changed?

[some_one]

but now you are saying "I can think of no reason for the downgrade to work any differently than it did before" ?

Because I can not think of a reason why it would not work as before. Like Intel probably can not think of a reason why the new PCH B3 stepping should not work as expected.

It was different, according to yourself. Has anything changed in 13xx since you provided modded 0804 BIOS or your view has changed?

Not sure that i understand you here Sam, so I hope the following is what your looking for.

The small different part will no longer be there once the user has flashed over the modded 0804 with Ezflash using one of the other BIOS versions or the original 0804 itself. I choose 0804 because it was the earliest official release and the user would likely flash a higher version afterward.

I've flashed back and forth quite a few times this way since 1253 came out with no problems.

If you're concerned something nefarious is going on by downgrading this way checking for changes can easily be done. Backup 1305, flash the modded 0804, use EzFlash to flash back 1305 then make another backup and compare it with the original backup. Alternatively an earlier backup before the modded 0804 was ever flashed could be used to check in the same way as 1305. You should see no changes other than that of the NVAR volume as this can change from boot to boot. Many of your settings and even boot devices for example will be stored on the flash chip rather than the traditional 0x70/0x72 CMOS.

Once the B3 stepping boards are out there may be a good reason for preventing downgrading to the older B2 stepping BIOSes i.e. incompatibility. Since that doesn't seem far away I will not be providing any further modded BIOS.