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|10th September 2009, 09:34||#1|
Join Date: May 2002
Not all 2nd PCIe "x16" Slots On P55 Motherboards Created Equal?
An analysis of the tech specs of the 30 LGA1156 motherboards from ASRock, ASUSTeK, Gigabyte, MSI and Intel with a second x16 PCI-Express port shows up an aspect of the spec that may go unnoticed at first but which is nevertheless important. On 12 of these motherboards the second x16 PCI-Express is not connected from the LGA1156ís processor to the PCI-Express controller with 8 lanes (the 1st PCI-E port is 8 lanes) but with 4 to the P55 Express.
Whatís more the lanes linked to the LGA1156 processor function at 5 GT/s and those linked to the P55 at 2.5 GT/s: this means one x16 PCI-Express port at x4 with the P55 functions at 1 GB/s in each direction as against 4 GB/s when at x8 with the processor!
|10th September 2009, 10:08||#2|
Join Date: May 2002
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