GTX 670 running at x8 instead of x16

[claw999]

i7 3730k
Kingston Hyperx Genesis 16 gb ddr3 1600 mhz
Kingston Hyperx 3k 240 gb
dz77sl50k motherboard
galaxy nvidia gtx 670
dvd writer

According to GPU-Z,CPU-Z and the bios, The graphics card is running at PCIe3.0 x8 and not at PCIe 3.0 x16 even though the board is compatible, I have no sli or any other cards. Can you please explain to me why this is happening and what I can do to correct it?

 

[xtreme5]

That is not problem so don't be worry about that, in which slot did you mount the card.

 

[xtreme5]

There is definitely NO loss in performance from going to x16 to an x8.

 

[claw999]

http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-board-dz77sl-50k.html , I Mounted it on the blue slot (the only PCI Expressx16 one). Why is the bios saying this? I paid like 500 dollars extra to get this ivy bridge setup as opposed to a sandy bridge, do you know why it is running at this speed? Is PCIe3.0x8 better than PCIe2.0x16? Will changing the motherboard,updating the bios or changing the graphics card make the card run at PCIe3.0x16? Also the bios says the card is running at 2.5 GT/s

 

[17seconds]

In GPU-z, click the little "?" (question mark symbol) next to the box that shows your PCIe bandwidth. Run the render test.

 

[xtreme5]

Thats right, ok disable USB3.0 turbo and your card will be at x16.

 

[claw999]

How do you do that?

 

[claw999]

Thats right, ok disable USB3.0 turbo and your card will be at x16.

How do you do it and what are the implications of doing it?

 

[claw999]

In GPU-z, click the little "?" (question mark symbol) next to the box that shows your PCIe bandwidth. Run the render test.

Already tried that,still the same, you don't need to click that if your link state power management is off

 

[xtreme5]

Get into the BIOS setting search for USB option then figure out usb 3.0 turbo mode enable and disable options.

 

[claw999]

nope can't find it, can only find the place where you enable usb ports, it is not even in the bios glossary, http://download.intel.com/support/motherboards/desktop/sb/biosglossarybymenu_v17.pdf, why do you say there is no difference between running at x8 and x16?

 

[xtreme5]

come on you can find it otherwise you will be always at x8. Could you please take an image of your bios screen I will tell you what do to next.

 

[xtreme5]

http://www.tomshardware.com/reviews/amd-crossfire-nvidia-sli-multi-gpu,2678-5.html

read this.

 

[verbalizer]

nope can't find it, can only find the place where you enable usb ports, it is not even in the bios glossary, http://download.intel.com/support/motherboards/desktop/sb/biosglossarybymenu_v17.pdf, why do you say there is no difference between running at x8 and x16?

there's a slight difference in this case and your suppose to be @ x16 and we need to get you there.
do not settle for x8/.

the difference in x8/ and x16/ is more minimal in SLi or CF-X set-ups
in single card mode, you are at a disadvantage in x8/.

 

[xtreme5]

@verbalizer, do you know how to disable usb3 turbo in intel dz77sl50k OP's motherboard.

 

[verbalizer]

@ xtreme5 - I hate Intel boards...
I wonder if it was a software app from the motherboard disk.?
if not then in the BIOS.

gonna do a quick search on exact motherboard...
be back.

 

[verbalizer]

I have a question....
does the enabling of the IGP for like Virtu Lucid have any effect.?
funny, I have two Z68 boards and do not use the technology, I tried it once and didn't like it..

 

[xtreme5]

Hmm, same here i hate too only Asus and gigabyte are the best mobo manufacturers, what do you mean by "does enabling IGP for like Virtue Lucid any effect" effect how?

 

[nafoni]

There may be an option in your BIOS to set your card's speed (x4, x8, x16 etc.).

 

[xtreme5]

I bet that is happened due to usb3 turbo mode but in OP motherboard there is no option for disabling it, anyway disable whole usb3 controller and see if it work at x16

 

[verbalizer]

I think I'm on to something....
BIOS UPDATES:
http://ark.intel.com/products/63246/Intel-Desktop-Board-DZ77SL-50K

http://downloadmirror.intel.com/21600/eng/SL_0081_ReleaseNotes.pdf
About This Release:
• Date: Jul 19, 2012
• ME Firmware: 8.0.13.1502
• Integrated Graphics Option ROM: Build 2132 PC 14.34
• SATA RAID Option ROM: v11.0.0.1204
• LAN Option ROM: v1376 PXE 2.1 Build 089
New Fixes/Features:
• Modified Overclocking Assistant setup item.
• Fixed issue where SMBIOS values cannot be overwritten.
• Changed UEFI Boot item default value to disabled.
• Modified USB Boot device function.
• Modified video output priority.
• Updated Intel® ME firmware to v8.0.13.1502.
• Fixed issue where specific time & day setting in BIOS Setup causes the system to hang.
• Fixed issue where Boot menu is lost in Setup.
• Updated BIOS to allow special key characters for password.
• Added IGD Minimum Memory setup item.
• Updated BIOS to create UEFI Boot Options if hard drive already has a UEFI operating system installed
• Fixed issue where USB drives are not removed from boot order list when USB BOOT is disabled.
• Fixed issue with USB keyboard special characters.
• Updated processor support.
• Fixed Consumer Infrared WHQL issue.
• Added default boot priority for Advanced boot order (CD; Removable; HDD; PXE).
• Fixed issue where yellow bang appears in Device Manager when UEFI boot is enabled.
• Improved hot key detection during POST.
• Fixed issue where USB 3.0 device is lost when waking from S3.
• Fixed issue where USB 2.0 keyboard or mouse plugged into a USB 3.0 port cannot wake the system from S3.
• Added Keyboard Ready Beep setup item.
• Modified Intel® Graphics Performance Analyzers default value.
• Updated video priority function.
• Updated PS2 function.
• Fixed issue where fan does not work correctly after updating BIOS.
• Updated Memory DQ Ref Voltage setting to be hidden if DIMM Reference Voltage Training is not set to Manual.
• Fixed issue where audio fails in DOS.

 

[verbalizer]

might not be the answer but it seems to have a few other BIOS updates as well.

 

[claw999]

Hmm alright, xtreme5, there isnt a way to disable the whole usb 3 controller but , I can disable each port one by one, will that work? Verbalizer I will try your option in a while, thanks

 

[xtreme5]

why not usb3 controller is available in BIOS glossary see the link above you have provided it to me PDF.

 

[verbalizer]

good-luck.
keep us updated and if not work then we'll try something else..