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SLI PCIE 16x/8x instead of 16/16

Circaflex
Level 7
Motherboard model: ASUS Rampage IV Extreme

UEFI Version: 4804

CPU: Intel 3930K

Memory kit part number (s) and amount in GB: G.SKILL Trident X Series 16GB (4 x 4GB) 240-Pin DDR3
SDRAM DDR3 2400 (PC3 19200) Desktop Memory Model F3-2400C10Q-16GTX

GPU: eVGA GTX670 FTW SLI

SSD/HDDs/Optical drives: Crucial M4 x 2 in raid0 UEFI windows 8 install

PSU: Antec TPQ 1200

USB Devices (model/version number): Steelseries sensai raw mouse, Steelseries keyboard

Monitor: dell

CPU Cooler: antec kuehler

PC CASE: bench table

Operating system: Microsoft Activated yes/no? Windows 8.1 Update 1 YES

System Overclocked (provide details)? No

Issue

I have a Rampage IV and I just noticed my setup is running 16/8 instead of 16/16. I know it was running correctly before but I have upgraded my bios since then, I am thinking this is when it changed? But I am not sure to be honest. BIOS reports 16/8 as does GPUZ w/fullscreen. Cards are in the proper slots for 16/16 I do have my sound card in x1 slot. Can this be bridge related? BIOS is also set for GEN3 but I also tried GEN2 and same result. Running most current bios from asus.com 4804

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34 REPLIES 34

nut
Level 7
What does Cpuz report.
System Specs
Desktop PC
Motherboard: RAMPAGE IV BLACK EDITION
Processor: Intel® Core™ i7-4930K Processor
Memory (part number): Kingston Hyper X HX324C11T3K4/32
Graphics Card #1: R9290X-DC2OC-4GD5
Graphics Card #2: R9290X-DC2OC-4GD5
Monitor: ASUS PB287Q
Storage #1: 240 GB INTEL SSDSC2BW240A4
CPU Cooler: Kraken X60 NZXT
Case: MICROCOOL Banchetto101
Power Supply: Antec HCP-1300 Platinum
OS: 64-bit Windows 10

where would I find that info, I dont see it anywhere in CPUZ

nut
Level 7
Download Cpu-z @ http://www.cpuid.com/downloads/cpu-z/1.69-setup-en.exe
System Specs
Desktop PC
Motherboard: RAMPAGE IV BLACK EDITION
Processor: Intel® Core™ i7-4930K Processor
Memory (part number): Kingston Hyper X HX324C11T3K4/32
Graphics Card #1: R9290X-DC2OC-4GD5
Graphics Card #2: R9290X-DC2OC-4GD5
Monitor: ASUS PB287Q
Storage #1: 240 GB INTEL SSDSC2BW240A4
CPU Cooler: Kraken X60 NZXT
Case: MICROCOOL Banchetto101
Power Supply: Antec HCP-1300 Platinum
OS: 64-bit Windows 10

Whoops something was lost in translation, I am well aware of CPUZ not that kind of noob haha. My CPUZ is not displaying PCI E lane speeds.

I would be concerned about the bios reporting that. I would believe what the bios reports before software.
System Specs
Desktop PC
Motherboard: RAMPAGE IV BLACK EDITION
Processor: Intel® Core™ i7-4930K Processor
Memory (part number): Kingston Hyper X HX324C11T3K4/32
Graphics Card #1: R9290X-DC2OC-4GD5
Graphics Card #2: R9290X-DC2OC-4GD5
Monitor: ASUS PB287Q
Storage #1: 240 GB INTEL SSDSC2BW240A4
CPU Cooler: Kraken X60 NZXT
Case: MICROCOOL Banchetto101
Power Supply: Antec HCP-1300 Platinum
OS: 64-bit Windows 10

nut
Level 7
I'm just wondering because I've noticed that Cpuz reports Link Width @ 1 and Max @ 16 on my system.
I could have sworn that it used to say Link Width @ 16 and Max @ 16.
System Specs
Desktop PC
Motherboard: RAMPAGE IV BLACK EDITION
Processor: Intel® Core™ i7-4930K Processor
Memory (part number): Kingston Hyper X HX324C11T3K4/32
Graphics Card #1: R9290X-DC2OC-4GD5
Graphics Card #2: R9290X-DC2OC-4GD5
Monitor: ASUS PB287Q
Storage #1: 240 GB INTEL SSDSC2BW240A4
CPU Cooler: Kraken X60 NZXT
Case: MICROCOOL Banchetto101
Power Supply: Antec HCP-1300 Platinum
OS: 64-bit Windows 10

I see, I know I had it running 16x on both a while back, the most recent changes I made were just BIOS updates a few months ago and today I flashed the newest.

Myk_SilentShado
Level 15

Yea, like I mentioned in the OP GPUZ reports 8X as well even full screen test for sli

The 1X slot should not be causing the problem right? I have my soundcard installed there.