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Plx Chip Asus P67 Pro?

zod96

zod96

Platinum Member
I noticed that the Asus P67 Pro does not have the Plx chip. Does this mean that when running Sata 6 it will share bandwidth with the Pci-e slots?
 
There are 8 PCIe2 lanes on P67 chip, and everything that goes through P67 have to share those 8 lanes.
For graphics the 2 PCIe2 x16 sockets connect direct to the cpu.

The 3rd PCIe x16 socket runs at x4, and is connected to P67. If you add a card to that socket, and choose to run that card at x4 (it's x1 by default without the PLX chip), then SATA and USB3 will be limited, or possibly starved of bandwidth.

If you're not connecting a card to the 3rd PCIe x16 socket, then you don't need the PLX chip.
 
Aw ok. So if I just use 1 5870 then it will run at 16X and the Sata 3 will also run at full speed without sharing any lanes....
 
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