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MVE 3-Way SLI on a PCIE 3.0 x8/x16/x8 running at x2/x16/x8

apocalypzez
Level 10
I just noticed this today that my first GPU was running at x2 (native). I am not sure why this would happen but previously it had been running on x8/x16/x8. The sound card was always on the same slot, i.e., the last red slot. However, being an x1 PCIe card, the speed is automatically downgraded to it's requirement, "x1". and I presume, the slot automatically gets allocated with the PCIe 2.0 bandwidth that's available on the Z77 chipset (correct me if i'm wrong).




I have done Multiple BIOS resets. Even taken the battery out for one minute and put it back on.
Tried BIOS 2 with factory BIOS version - no good.
Tried reinstalling BIOS v1802 again via the USB flashback option coz i am using the modded OROM bios for OROM v12.7.0.1936.

The only thing I haven't tried is trying to put one card at a time and booting up to see if the BIOS properly recognizes.

I also tried couple of benchmarks, not sure if they are at par to others who have similar system to mine.

firestrike extreme run 1: http://www.3dmark.com/fs/598962
firestrike extreme run 2: http://www.3dmark.com/fs/599002
firestride normal run 1: http://www.3dmark.com/fs/598943

sorry tried to make the pic to a thumbnail size but the IMG size BBCODE doesn't seem to work here.
ASUS Maximus IX APEX || Core i7 7700K || Corsair H150i Pro || EVGA RTX 2080 Ti B.E. || G.Skill Trident Z RGB F4-3000C15D-16GTZR 16GB (2x8GB) DDR4 @ 15-16-16-35-2N || ADATA SX8200 Pro 1TB x 2 (RAID0) || WD RED 3TB x 2 || Corsair AX1200i || NZXT H700i (without the smart hub) || Dell U3011 || Windows 10 Pro x64 || Logitech Z2300 THX Certified 2.1 & Corsair Vengeance 2000 ||
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5 REPLIES 5

HiVizMan
Level 40
Your benchmarks seem on par with what I would expect to see.

Please do try one card at a time and see how that goes.
To help us help you - please provide as much information about your system and the problem as possible.

HiVizMan wrote:
Your benchmarks seem on par with what I would expect to see.

Please do try one card at a time and see how that goes.


Just tried one card at a time and guess....surprise-surprise, even then the gpu runs at x2 mode. I tried all the gpus in the first slot and all ran at x2 speed...!!!
ASUS Maximus IX APEX || Core i7 7700K || Corsair H150i Pro || EVGA RTX 2080 Ti B.E. || G.Skill Trident Z RGB F4-3000C15D-16GTZR 16GB (2x8GB) DDR4 @ 15-16-16-35-2N || ADATA SX8200 Pro 1TB x 2 (RAID0) || WD RED 3TB x 2 || Corsair AX1200i || NZXT H700i (without the smart hub) || Dell U3011 || Windows 10 Pro x64 || Logitech Z2300 THX Certified 2.1 & Corsair Vengeance 2000 ||

apocalypzez
Level 10
Time for an RMA, I guess!!!
ASUS Maximus IX APEX || Core i7 7700K || Corsair H150i Pro || EVGA RTX 2080 Ti B.E. || G.Skill Trident Z RGB F4-3000C15D-16GTZR 16GB (2x8GB) DDR4 @ 15-16-16-35-2N || ADATA SX8200 Pro 1TB x 2 (RAID0) || WD RED 3TB x 2 || Corsair AX1200i || NZXT H700i (without the smart hub) || Dell U3011 || Windows 10 Pro x64 || Logitech Z2300 THX Certified 2.1 & Corsair Vengeance 2000 ||

HiVizMan
Level 40
Indeed RMA the board
To help us help you - please provide as much information about your system and the problem as possible.

apocalypzez
Level 10
Just saw 1803....will give that a shot b4 I initiating RMA!!
ASUS Maximus IX APEX || Core i7 7700K || Corsair H150i Pro || EVGA RTX 2080 Ti B.E. || G.Skill Trident Z RGB F4-3000C15D-16GTZR 16GB (2x8GB) DDR4 @ 15-16-16-35-2N || ADATA SX8200 Pro 1TB x 2 (RAID0) || WD RED 3TB x 2 || Corsair AX1200i || NZXT H700i (without the smart hub) || Dell U3011 || Windows 10 Pro x64 || Logitech Z2300 THX Certified 2.1 & Corsair Vengeance 2000 ||