What I'd like to know is how it could have had this much power
going through it without popping the fuse ( assuming
it had a fuse ).
I kind of wonder these days how many companies actually make power supplies and how many of the brands are just sombody elses product in different packaging.
_________.-._________
| t s r q p o n m l k | seen from above
| j i h g f e d c b a |
`---------------------'
Pin Dell Colour/Usage ATX Colour/Usage Dell shift+3
---------------------------------------------------------------
a red +5V orange +3.3V n/a
b black GND orange +3.3V n/a
c red +5V black GND n/a
d black GND red +5V +5V
e orange LO to HI * black GND GND
f purple +5V red +5V +5V
g yellow +12V black GND GND
h blue -12V gray PWRGOOD LO to HI
i black GND purple +5V stand-by +5V
j black GND yellow +12V +12V
k gray n/c ** orange +3.3V/sense n/a
l black GND blue -12V n/a
m black GND black GND n/a
n black GND green PSON PSON
o white -5V black GND GND
p red +5V black GND GND
q red +5V black GND GND
r red +5V white -5V -5V
s brown n/c red +5V +5V
t red +5V red +5V +5V
*) may be PWRGOOD or may require a time delay circuit to power on
([URL]http://www3.sympatico.ca/mike.thang/mp3.htm[/URL])
**) may be PSON# ([URL]http://docs.us.dell.com/docs/systems/dmum/techovu.htm[/URL])
ATX Stand-by is 5V, 720 mA.
Dell purple is 5V, ~400 mA, while Dell gray (PSON) is 5V, 1.5 A
http://www.geeks.com/details.asp?InvtId=PS575XBK&cpc=RESX
575W
110V, 220V switchable power supply
50/60 Hz, 10A/5A
+3.3V, 38A
+5V, 40A
+12V, 25A
-12V, 0.8A
-5V, 0.5A
+5Vsb, 2A
http://www.geeks.com/details.asp?invtid=ESTAR-580-24&cat=PWR
580W
115VAC 7.0A 50/60Hz
230VAC 3.5A 50/60Hz
+3.3V, 35A
+5V, 45A
+12V, 19A
-12V, 0.8A
+5Vsb, 3A
2 supplies from different makers almost the same wattages (575 to 580) but the specs of each Voltage are a bit different. Notice how different the +12V line ratings are.