A Closer Look
Gamdias’s Astrape P1-750G is quite the looker, even when powered off. All of the cables come in a nice reusable bag with Velcro enclosure.
The top grill covers most of the top of the PSU and features a triangular pattern across its entire face. A small badge right in the middle, over the fan hub, has Gamdias’s logo.
The top edges of the PSU are vented in a similar fashion to the top face, assumingly to let you view the Neon-Flex lighting inside. While the PSU is meant to be ‘grill up’ for aesthetics, this side would be the side facing you in a top mount orientation with the intake facing down to your motherboard. It’s the details that matter.
All of the rear is covered in the same triangle pattern vent to allow plenty of cooling. The rear has the standard IEC-C14 power inlet, power switch, silent mode switch, and RGB mode change button.
On the other end is the connections for all of the power cables. Besides the 2 plugs making up the main 24-pin motherboard connection, you have a single EPS-keyed connection for a dual 4+4 cable, two PCIe keyed 8-pins for graphics power and a quartet of peripheral plugs for feeding SATA and 4-pin ‘molex’ connections.
The rear of the PSU has a massive label covering most of it. We can tell from the label the PSU is a single 12V rail design will all minor rails drawing power from it. The 5V signal bus rail is a full 3 amps which are nice for this size range of power supply.
The Velcro closed bag is stuffed to the gills with cables, everything you need including the AC inlet cable as well.
You also get a hand full of small zip ties for cable management. Computer side cables include a single 24-pin main power, a single CPU power cable with dual 4+4 pins, two PCIe cables that each have dual 6+2 connections, three SATA cables, and a single 4-pin peripheral that has a single berg style ‘floppy’ connection.
Cable lengths are great with nearly 600mm to the first connector on all cables and nearly 700mm for the 24-pin and EPS cables.
Next, we’ll open the PSU up and take a poke around the internals.
More than a quarter of the board is made up of active power factor correction areas, in the top left here. The top right is the main +12V power system, while nearly all of the minor rails such as +5V are near the bottom left. PWM controls and the 5V SB supply come from the lower right corner here.
The underside of the board has quite a bit going on. We find the main MOSFETs hiding on the bottom of the board, along with some of the control circuitry. Soldering looks decent, but not the best wave soldering job we’ve seen.
The choice to put the main MOSFETs on the bottom of the PCB is an interesting one. To deal with thermal demands, Gamdias has placed a large and very thick thermal pad under these to sink heat to the PSU casing rather than the typical design of putting them above with a heatsink under the fan.
There is ample filtering built into the AC inlet before power even reaches your PSU internals.
The modular cable connection board is bolted to the rear of the housing and wired to the PSU with short wires. There doesn’t appear to be much in the way of secondary filtering at this area like some designs.
All main capacitors are indeed either Nippon Chemi-Con or Hitachi HU series capacitors from Japan as promised.
The BOK brushless 140mm fan is a common model adapted to the Neon-Flex lighting system in use by Gamdias.