Marc Sims
Data Technician I
Prince George's Community College
>>> Marc Sims 06/13/06 9:40 PM >>>
I've read about Dell's proprietary PSU ATX connector in the book Upgrading and
Repairing PC's 16th edition in the 16th edition in Chapter 21 page 1172 it says:
"Dell's pseudo-ATX designhad only three 3.3V pins in the auxilliary connector,
which could supply only up to 15A on the board. You can see that even the main
ATX connector alone had more than 3.3V current than Dell's design using two
Connectors!"
"If you study the Dell main and auxilliary connector pinouts and compare them
to the industry standard PSU main connector pinouts you'll see that not only
are the voltage and signal positions changed, but the number of terminals
carrying specific voltages and grounds has changed as well."
I remmember that in the Dell Proprietary PSU ATX connector pin 8 rated at -12V
blue was the culprit becuase in a standard ATX PSU pin 8 is orange which is the
Power_Good lead and pin 5 is the Gnd black. What dell did was switch pin 8
from Power_Good Orange to a blue -12V lead and pin 5 from a GND Black to
Power_Good orange signal.
You could switch these two pins around very easily but its too much trouble to
bother with. ;)
Marc Sims
Data Technician I
Prince George's Community College
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