[Pc_Support] 6-pin SSI EEB WS and 6-pin PCIe Power are NOT the same(and can destroy hardware!)

Bryan J. Smith b.j.smith at ieee.org
Thu Dec 1 16:34:02 EST 2005


Damien McKenna <dmckenna at thelimucompany.com> wrote:
> <smacks forehead>
> I wonder if anyone has made something go *boom* because of
> this?

Probably not too many until just recently.  For the most
part, most mainboards that needed the SSI EEB WS connector
were using EPS12V power supplies which had it.

But now that there are these "universal" EPS12V/ATX12V 2.0
power supplies, it is probably damn easy to do!  Especially
as the PCIe connector is becoming commonplace.

Stupid PCI SWG!  They should have known _better_ than to
reuse the exact, same configuration that the SSI was already
using.  I still can't believe they didn't key it
differently?!?!?!

In reality, it's probably not deadly to plug the SSI EEB WS
connector into a PCIe.  It only delivers +3.3V to lines that
want +12V and attempts a +12V to GND.

But going the opposite, a PCIe into the SSI EEB WS, is going
to try to deliver +12V to the +3.3V lines, and utterly blow
the mainboard -- as in the case of the Tyan.




-- 
Bryan J. Smith                | Sent from Yahoo Mail
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