CentOS - May 2012 - OT: PCI express questions???

We have several DELL servers run under CENTOS 5.  I check server spec and found
some servers expansion slot say PCIE and some say PCIE generation 2.

My questions are:

1. does PCI express meaning PCIE 1.0???

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

3. what is speed on following:

PCI  X4:
PCI  X8:

PCI generation 2 X4:
PCI generation 2 X8:

Thanks.

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:
http://en.wikipedia.org/wiki/PCI_Express#History_and_revisions

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