Small PSU???

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Which are the samllest PSU that OC supply that are around 400watts. As i am after a smaller PSU than the standard size. Dont really want to spend more than £25-30
 
Well im looking at micro atx motherboads, so i will need an ATX PSU wont i?. Its not going into a case, im building a mini arcade cabinet, so im looking for the smallest (in size) PSU to got with one of the micro atx mobos that OC supply, so im looking a size below the norm

I would be using E7200 CPU, 2GB of RAM, 1x Hardrive, ATI 3400 series GFX card, and a few USB devices, would 285watts be enough for this on a micro atx mobo??
 
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Thanks for replying, so you think if i took the gfx card out of the equation the system would run happly on a 120watt PSU?? Also any idea of the dimensions of the, Enermax EG285-SX-VB PSU?
 
Right got my PC Components the other day:

Gigabyte GA-73PVM-S2H mobo
Core 2 Duo E7200 2.53GHZ
250GB Seagate Barracuda
LG DVD/RW+

all powed by, Enermax EG285-SX-VB(G) 285W Micro ATX PSU using onboard graphics

Now i installed XP 64 fine, but when the PC rebooted to finished the setup, my PC keeps restarting and display the if i want to start in safe mode, command prompt etc screen. If i select start windows normal the xp logo appears with the progress bar for about a second and then i see a quick flash of a blue screen of death and then the PC restarts all over again. Now is this a dodge install or is the 285watt PSU not powerful enough??
 
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nah not witha sata connection for the HD. I thought if it was struggling then it wouldnt have had enough juice to install windows!!?
 
Ok figured it out it was to do with Gigabyte GA-73PVM-S2H 'On Board Chip Sata Mode'!. I remember it aksed me the first time i powered on the system that my sata drive was in IDE mode and if i wanted to change it to AHCI mode, i wasnt 100% sure what AHCI mode is, but i knew that a sata drive shouldnt be in IDE mode should it, so i selected yes to change it to AHCI mode. I hav now changed it back to IDE mode via the BIOS and now windows boots up. Any idea why this happened, and should i have my sata drive in IDE mode??
 
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