Any piont for Gen3

spankingtexan

spankingtexan

spankingtexan

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15 Sep 2010
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Hi Chaps, I was wondering what difference there is to a z68 Gen3 board and a z68 non Gen3 board? as I understand a bios update to a z68 non Gen3 board will enable PCI-E3 anyway or am I wrong?
 
The only difference is the PCI_E switches.

Thus if you have a cheaper Z68 board such as,
http://www.overclockers.co.uk/showproduct.php?prodid=MB-364-GI&groupid=701&catid=5&subcat=1990
http://www.overclockers.co.uk/showproduct.php?prodid=MB-483-AS&groupid=701&catid=5&subcat=1990
http://www.overclockers.co.uk/showproduct.php?prodid=MB-198-MS&groupid=701&catid=5&subcat=1990
http://www.overclockers.co.uk/showproduct.php?prodid=MB-052-AK&groupid=701&catid=5&subcat=1990

Which dont have any switches at all and remain always wired directly to the cpu socket by 16X lanes for the top slot and 4X for the second slot, the Asrock doesnt even have a second slot.

These are Gen3 as its a direct connection to the Ivybridge CPU that has the PCI controller on its die.






More expensive boards that do have switches are wired by 8X lanes from the top slot to the CPU socket while another 8X pass to the "switches" , these then send those 8X lanes either to the the top slot to make 16X or the second slot to make SLI/Crossfire 8X/8X

As the top slot is wired by 8X directly you get PCI-E3.0@8X on non Gen3 boards which is equivalent to PCI-E2.0@16X

Or on a Gen3 board you get PCI-E3.0@16X for the top slot with a single GFX card and PCI-E3.0@8X/8X with two cards.


**There are some random exceptions to this rule etc and also boards which feature the NF200 chip will vary also.
 
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I have a asus p8z68 deluxe mobo will that work at pcie 3 with a ivy cpu installed
 
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