[jack0w]

What are you using for a PSU? If you are using an ATX-sized PSU then that is your problem.

I'm just using the standard PSU that came with my Antec ISK300-150, so no not an ATX PSU.

Are you using same case and PSU as me?

I'm not using that case but the problem is the PSU. Although it's not an ATX PSU it is constructed internally just like one and that is your problem (which is what I was getting at in my previous post). If you want to get the kind of power consumption (i.e. low) that others are getting you are going to have to get a DC-DC PSU with an AC adapter. This is the type of PSU that comes in the ISK 300-65 or you can purchase a picoPSU and install it in your current case.

Here is post on silentPCreview where a user did some testing on the PSU in his ISK 300-150 and documented how poorly it performed. --> ISK 300 available with larger power supply now

Apologies, think I probably misunderstood your original question! Looks like a PicoPSU is back on the cards, especially given my low power goal!

Thanks so much for the information though, will be invaluable to me and I'm sure others too