SSUSB/USB 3.0 graphics issues ?

0neAnd0nly · 30 Jan 2010 at 20:02

I've heard that these will casue problems with graphics card, When set Turbo SATA3 / USB3.0 (Marvell 9128 /NEC USB 3.0 Controller) to enable in BIOS setup, 1st PCIex16 slot will run at x8 bandwidth and 2nd PCIex16 slot will be disabled.

Is this true ?

http://www.overclockers.com/forums/showthread.php?t=623288

http://www.tomshardware.co.uk/forum/265192-12-asus-p7p55-premium-gigabyte-p55a

stulid · 30 Jan 2010 at 20:07

Sounds like there is not enough pci express lanes avalible for all this new stuff to use at the same time.

P.s that's the first I heard about this so know as much as you..

0neAnd0nly · 30 Jan 2010 at 20:38

stulid said:
Sounds like there is not enough pci express lanes avalible for all this new stuff to use at the same time.

P.s that's the first I heard about this so know as much as you..

If i buy a SSUSB card for the 2nd pci slot instead of built on mobo ones will this make a difference you think ?

stulid · 30 Jan 2010 at 20:50

I aint got a clue. All I know is, each different chipset has a certain number of pci lanes, these are divided up for each part of the board(such as 16x pci express slots which uses 16).

Just maybe the motherboard makers, to implement the new usb controller chips have rerouted when needed some of these lanes? There is only a certain number of express lanes to go around, untill new chipsets are released.