PSU Installation and Cabling
While we're happy the folks at Deepcool were able to make inroads making their Steam Castle available in the U.S., it apparently hasn't done as well with power supplies. The DA500 sent over to our German office doesn't show up for sale. Fortunately, there are a lot of good alternatives in the 500 W range. Corsair's CX500 is one. SilverStone and Cooler Master also have strong offerings.
Nevertheless, the DA500 Tom's Hardware Germany received is manufactured at CWT and based on the GPA design. We loaded it up to a mere 300 W and at that wattage it ran quietly.
Only the motherboard cable is sleeved; the other leads are bare. You'd want to make judicious use of cable ties to achieve a visually appealing result. The PSU’s rated output is more than sufficient for this build, and there is even leeway for a more powerful graphics card.
The capacitors on this power supply's secondary side are made by CapXon, and are adequate by our standards. For a low-end PC like this one, you could even dip down into the 300-350 W range. But again, good 500 W units go for as little as $50 online.
One thing we don’t like about the Deepcool PSU is that it is way too large for its rated output. Then again, it served its purpose, fit inside the Steam Castle, and skates by as acceptable if you're in a country where it's available.
Cabling the PC was quick and easy. Short PSU cables can be an asset when the case is a compact one.