OEMs such as HP, Gateway, Compaq, and Dell often deviate from accepted PC power supply standards. Unique shapes, connectors, and wiring are all signs of a proprietary design. Below is the cross reference of popular Compaq computers and part numbers to the appropriate power supply upgrades or replacements.

Manufacturer Part Number: ATX0300D5WB Rev: X 300 watt power supply ATX0300D5WB
Application Notes:
Dell 300 watt Replacement power supply
Manufacturers : Bestec
Model # : ATX0300D5WB Rev. X3
P/N: CN-0XW600 / XW600

Manufacturer Part Number: Dell H305P-00 P/N: HP-P3067F3P W4828 305 watt power supply H305P-00
Application Notes:
Dell H305P-00 P/N: HP-P3067F3P 305 watt power supply
Manufacturers : DELL
Model # : H305P-00 REV: A02
HP P/N: DLP3067F3P LF
P/N: HP-P3067F3P / W4828

Manufacturer Part Number: Dell HP-P2307F3 P/N: H230N-00 230 watt power supply replace with H305P-00
Application Notes:
Dell HP-P2307F3 P/N: H230N-00 230 watt power supply
Manufacturers : DELL
Model # : H230N-00
HP P/N: HP-P2307F3 LF
P/N: CN-0NC905

Dell Optiplex 210L replace with H305P-00

Power Edge SC430 Tower PC Power Supply K8958 replace with H305P-00

Dell OptiPlex GX320, GX620 replace with H305P-00

Dimension 5100, E510, 5150, E521, E520, E521, 3100, E310 replace with H305P-00

Dell Part Numbers: W8185, M8802, M8805, M8806, X8129, C9962 replace with H305P-00

Dell P/N: MC633, PC357, N8372, NC905, C5201 H305P-00

Manufacturer Part Number: Dell H220P-00 HP-Q2228F3P RoHS 220 watt power supply replace with HP-Q2228F3P
Application Notes:
Dell Dell H220P-00 HP-Q2228F3 230 watt power supply
Manufacturers : DELL
Model # : H220P-00
HP P/N: HP-Q2228F3P LF
P/N: MC638

Manufacturer Part Number: Dell Optiplex GX520 MC638 desktop power supply replace with HP-Q2228F3P
Application Notes:
Dell Part Number : MC638

Manufacturer Part Number: HP-P2507FWP can be use with both
250 watt power supply HP-P2507FWP
250 watt power supply with SATA Connector Adapter HP-P2507FWP
Application Notes:
Genuine Dell 250 Watt Power Supply CN-0N2286 HP-P2507FWP
Manufacturers : DELL
Model # : HP-P2507FWP

Manufacturer Part Number: Dell HP-P2007F3 P/N: K0564 200 watt power supply replace with HP-P2007F3
Application Notes:
Dell HP-P2007F3 P/N: K0564 200 watt power supply
Manufacturers : DELL
Model # : HP-P2007F3
HP P/N: CN-0K0564

Dell Dimension 2400 In (Tower Form-Factor Cases!) replace with HP-P2007F3
Application Notes:
Model Number: HP-P2007F3
Part Number: 0K0564 K0564
Other Compatible Model Numbers and Part#'s: DPS-200PB-146B 0P0304 P0304

Dimension 2200, 2300, 2350, and 2400 replace with ATX-300

Dimension 3000 replace with ATX-300

Dimension 4300, 4400, 4500, and 4550 replace with ATX-300

Dimension 4600, 4700, and 8400 replace with ATX-250

Dimension 8200, 8250, and 8300 replace with ATX-300

OptiPlex GX50, GX60, and GX150 tower systems replace with ATX-300

Inspiron 530 531 XW599 XW600 XW601 replace with ATX0300D5WB
Application Notes:
Not appropriate for slim desktop models, which use a non-standard power form factor.

OptiPlex GX240, GX260, and GX270 tower systems replace with ATX-300
Application Notes:
Not appropriate for slim desktop models, which use a non-standard power form factor.

OptiPlex GX280 replace with ATX-250
Application Notes:
Not appropriate for slim desktop models, which use a non-standard power form factor.

PowerEdge 600SC replace with ATX-300
Application Notes:
Not appropriate for slim desktop models, which use a non-standard power form factor.

Precision WorkStation 340 replace with ATX-300
Application Notes:
Not appropriate for slim desktop models, which use a non-standard power form factor.

Dell XW605 TFX0250D5W 250W TFX Power Supply replace with TFX0250D5W

Dell TFX0250D5W Rev.: X3 CN-0XW605 250W TFX Power Supply replace with TFX0250D5W

Dell Inspiron: 530 SFF, 531 SFF replace with TFX0250D5W

Dell Vostro: 200 SFF, 400 SFF replace with TFX0250D5W

Dell XW605 XW604 replace with TFX0250D5W

Dell Inspiron Vostro 300 Watt Power Supply replace with ATX0300D5WB
Application Notes:
This 300W Power Supply is compatible, but not limited to, the following Dell Desktop systems: Inspiron 530 MT, Inspiron 531 MT, Vostro 200 MT, Vostro 400 MT.

Dell 550watt HP-U551FF3 REV: A05 Power Supply P/N: H2370 HP-U551FF3

Dell HP-Q2228F3P P/N: MC638 220 watt RoHS Power Supply Model: H220P-00 HP-Q2228F3P

Dell Dimension 8100 Power Supply Replacement ATX400W
Application Notes:
Replaces the following computer power supplies: Dell Precision 410, Dell NPS-300GBB, Dell Dimension 8100, Dell 24RGY, Dell 88PNP, Dell 03E466, Dell 3E466, Dell NPS-330CB, Dell OptiPlex GX400, Dell PowerEdge 1300, Dell PowerEdge 2300, Dell Precision 330, Dell Precision 420, FSP FSP400-60PFB-M, Newton NPS-300GBB, Newton NPS-330CB,