EVGA

FAQ ID # 59510
X99 PCIE Lane breakdown
Last Update : 2014/08/29
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Question / Issue
What is the PCIE slot break on my X99

Answer / Solution

On the X99 the bulk of the PCIE lanes comes from the CPU (as with several of the last Intel platforms) however there are 2 main variants of CPUs for this socket, and they have different amounts of PCIE lanes causing the boards to have different compatibilities based on board and processor.

Currently (8/21/2014) the 5820K is the ONLY 28 Lane processor for the X99 platform.

X99 Classified (E999)

PCI-E Lane Distribution (40 Lane Processor)

q PE1 – x16 (x8 if PE2 is used)

q PE2 – x8

q PE3 – x8

q PE4 – x16 (x8 if PE3 is used)

q PE5 – x4  (Gen 2 only, 4 lanes pulled from PCH)

q PE6 – x8

PCI-E Lane Distribution (28 Lane Processor)

q  PE1 – x16 (x8 if PE2)

q  PE2 – x8

q  PE3 – x8  (Slot is *NOT* functional with a 28 lane processor.)

q  PE4 – x8

q  PE5 – x4  (Gen 2 only, 4 lanes pulled from PCH)

q  PE6 – x4

 

X99 FTW (E997)

PCI-E Lane Distribution (40 Lane Processor)

q PE1 – x16 (x8 if PE2 is used)

q PE2 – x8

q PE3 – x8

q PE4 – x16 (x8 if PE3 is used)

q PE5 – x4  (Gen 2 only, 4 lanes pulled from PCH)

q PE6 – x8

PCI-E Lane Distribution (28 Lane Processor)

q  PE1 – x16 (x8 if PE2/PE3 are used)

q  PE2 – x8

q  PE3 – x8  (Not functional with a 28 lane processor.)

q  PE4 – x8

q  PE5 – x4  (Gen 2 only, 4 lanes pulled from PCH)

q  PE6 – x4

X99 Micro (E995)

PCI-E Lane Distribution (40 Lane Processor)

q PE1 – x16

q PE2 – x16

q PE3 – x8

 

PCI-E Lane Distribution (28 Lane Processor)

q PE1 – x16

q PE2 – x8

q PE3 – x4

 



Direct Link to This FAQ
http://www.evga.com/support/faq/?f=59510

Tags
X99, PCIE, PCIE lanes, 59510

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