Post by pjp
Is there some easy way to tell if your pc has USB3 ports/capability?
I've just gotten three ThinkCenter M91P's (I5's with 8 Gb ram and good
size hard disks) on good deal trade.
I've found a number of various "manuals" and spec sites that suggest it
does have USB3 but they differ on which ports etc. and how many. Too
many discordances to pick out the truth.
Physically looking at the ports and they all look the same, color etc.
Device manager gives no real clue that I can tell.
"The M91 and M91p are the fastest ThinkCentre desktops
with SATA III hard disk drive and USB 3.0*. [Q67 chipset]
* Not a standard feature
The Intel Q67 chipset support USB 2.0.
The user must install the PCI-E USB 3.0 adapter card
to achieve 3.0 speeds.
Once the adapter is installed, the user must install
the proper operating system drivers <=== Win7 lacks drivers
that can be obtained from the Lenovo support site.
TOWER PCI-E USB 3.0 Card, FH FRU 03T7030
Small Form Factor PCI-E USB 3.0 Card, LP FRU 03T7031
This is why the USB ports in the I/O plate
area all have the black plastic in the barrel,
as they're USB2.
USB3 has its own blue-colored motif :-)
In the case of your acquisition, you could
check out the slot contents with your eyeball.
If a card in the card slot area has the
blue tabs, you would suspect someone added
the "optional" USB3.
When you use add-in cards, the USB3 may not
run at full speed. When USB3 ports are on the
Southbridge/PCH, then they run at full speed.
Or as close to full speed as you're going to get.
This shows a design from the same era (P67).
Only USB2 show on the chipset. Anything else must
be added using a plugin card.Loading Image...