Dell Optiplex 755 Power Supply

[Craig68x]

After reading a few posts am I safe to assume I cannot increase my PSU beyond 275? If so, why?

 

[Archaic59]

Does your power supply look like this one? If so, no you won't find one at any store.

http://tinyurl.com/zgd9gz3

 

[delaro]

These units use a specially designed small form factor supply "SFF" measuring 8.9 x 6.3 x 4.8 inches. There are no direct aftermarket upgrades available, the closest are SFX supplies which are around 3.94 X 2.5 x4.92. For this you would need to make a Custom Mounting bracket and clearance behind the Optical drive might be tight. It also changes how the case vents so heat could be a issue.

 

[smorizio]

to safe yourself some pain swap the mb over to a cosair r88 case with a standard power supply.

 

[Craig68x]

OK, after looking through the forum these guys have similar Dells that I have.

http://www.tomshardware.com/answers/id-2278934/power-supply-graphics-card-dell-optiplex-755-mini-tower.html

http://www.tomshardware.com/answers/id-2219245/powerful-graphics-card-dell-optiplex-755-minitower-added-500w-power-supply.html


Here's my specs:
Summary
Operating System
Windows 7 Professional 64-bit SP1
CPU
Intel Core 2 Duo E8400 @ 3.00GHz
Wolfdale 45nm Technology
RAM
8.00GB Dual-Channel DDR2 @ 398MHz (6-6-6-18)
Motherboard
Dell Inc. 0PU052 (CPU)
Graphics
DELL SE2216H (1920x1080@60Hz)
Intel Q35 Express Chipset Family (Dell)
Intel Q35 Express Chipset Family (Dell)
Storage
931GB Hitachi HUA721010KLA330 ATA Device (SATA)
14GB SanDisk Cruzer Glide USB Device (USB)
29GB SanDisk Cruzer Glide USB Device (USB)
15GB PNY USB 2.0 FD USB Device (USB)
Optical Drives
TSSTcorp DVD+-RW TS-L633A ATA Device
Audio
High Definition Audio Device
And a new Dell 21.5" monitor.

So how do they have higher PSUs?

 

[Archaic59]

In the other threads they have the mini tower with 305 watt PSU. It's bigger than yours and has some room inside and some upgradability. The 275 watt PSU you have comes in the SFF, small form factor. It has proprietary PSU and board, low profile slots etc...everything is squeezed down smaller to fit the little case. You may be able to increase the memory and add a low profile video card that the PSU can handle but that's about it. What do you expect when you buy a tiny little pc?

 

[Craig68x]

Well, when you have a tiny little budget you end up with a tiny little computer. Thanks anyway...