Dell OptiPlex GX1p Manual de usuario descargar pdf (Pagina 36)

1-24 Dell OptiPlex GX1/GX1p Managed PC and OptiPlex NX1 Net PC Systems Service Manual

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The power-supply output voltages can be measured at the back (wire side) of

the connectors without disconnecting them. Figures 1-15 through 1-17 show

the wire side of the connectors.

Pin 11 — PSON# should measure between +4 and +5 VDC except when the power button

on the front panel is pressed, taking PSON# to its active-low state.

Pin 19 — Thermal fan-speed control (TFSC) is a power-supply input signal used to control

the power-supply fan speed.

Pin 5 — PWRGOOD should measure between +4 and +5 VDC when the power supply is on

and operating to indicate that all power-supply output voltages are within ranges specified

in Table 1-4.

–12 VDC –10.80 to –13.20 VDC 0.3 A (low-profile computers);

0.3 A (midsize and mini tower

computers)

–5 VDC –4.50 to –5.50 VDC 0.3 A (low-profile computers);

0.3 A (midsize and mini tower

computers)

+5 VFP

+4.75 to +5.25 VDC 10 mA

VFP (volts flea power) — sometimes called “standby power.”

PWRGOOD

(orange)

–12 VDC (blue)

+12 VDC (yellow)

+5 VFP (purple)

common (black)

234 5 67 8 910

12 13 14 15 16 17 18 19 20

+5 VDC (red)

common (black)

PSON#

(gray)

common (black)

–5 VDC (white)

TFSC

(brown)

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 169 170

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Dell OptiPlex GX1p Manual de usuario Pagina 36