[CentOS] OT: PCI express questions???

Sat May 12 00:54:17 UTC 2012
John R Pierce <pierce at hogranch.com>

On 05/11/12 4:03 PM, mcclnx mcc wrote:
> 1. does PCI express meaning PCIE 1.0???

it means they didn't specify.

> 2. does PCIE generation 2 same like PCIE 2.0???

probably.  ask the marketing droids that wrote that.   the formal name 
is PCI Express Base 2.0 specification

> 3. what is speed on following:


PCI-E 1.x is 2.5GT/s and 250MByte/sec burst transfer per lane.

PCI-E 2.x is 5GT/s and 500MB/sec burst transfer per lane.

4 lanes are capable of 4 times that, 8 lanes, 8 times that, but each 
lane can function independently, and its up to the card and its driver 
software to dettermine how to utilize the lanes.

john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast