AT and ATX tech specs [PAGE 1]

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AT tech specs

Pin Duty Color Description
A PG Orange Signal +5v when Power is Good

B +5 Red +5 Vdc

C +12 Yellow +12 Vdc

D -12vdc Blue -12 Vdc

E Ground Black Common reference for current, 0V

F Ground Black Common reference for current, 0V

G Ground Black Common reference for current, 0V

H Ground Black Common reference for current, 0V

I -5 White -5 Vdc

J +5 Red +5 Vdc

K +5 Red +5 Vdc

ATX tech specs

Pin Duty Description
A +3.3V +3.3V

B +3.3V +3.3V

C ground A Common reference for current, 0V

D +5 Vdc +5 Vdc

E Ground A Common reference for current, 0V

F +5v +5v

G Ground A Common reference for current, 0V

H PG +5 Vdc when Power is good

I +5 Vdc +5 Vdc

J +12 Vdc +12 Vdc

K +3.3 Vdc +3.3 Vdc

L +12 Vdc +12 Vdc

M Ground +5 Vdc when Power is good

N PO +5 Vdc when Power is good

O Ground A Common reference for current, 0V

P Ground A Common reference for current, 0V

Q Ground A Common reference for current, 0V

R +5 Vdc +5 Vdc

S +5 Vdc +5 Vdc

T +5 Vdc +5 Vdc

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