Just took a quick look on Ebay
and 275w is highest for 745 SFF
I have an 745 Slim Desktop with a 280w
I power an OCd E4500 2.2/800 at 2.93/1066FSB
with 4 sticks of DDR2-800 1gb Gskill
a velociraptor 10k rpm HD
Asus Xonar DG sound card
ATI Theater Pro 550 tv tuner PCI card
MSI HD 5670 OCd to the max (900/1250 QDDR5)
Asus 24x DVD-rw
USB 320gb external drive
probably wont
but try searching Optiplex 745 on Ebay if available
sometimes they will have replacements at higher wattage
I know I saw an Inspiron 530 PSU that was upgraded
Just took a quick look on Ebay
and 275w is highest for 745 SFF
I have an 745 Slim Desktop with a 280w
I power an OCd E4500 2.2/800 at 2.93/1066FSB
with 4 sticks of DDR2-800 1gb Gskill
a velociraptor 10k rpm HD
Asus Xonar DG sound card
ATI Theater Pro 550 tv tuner PCI card
MSI HD 5670 OCd to the max (900/1250 QDDR5)
Asus 24x DVD-rw
USB 320gb external drive