Scythe Kamariki II PSU Specs
- Model Name: Kamariiki-2
- Model #: 550W Model: KMRK-550A-2
- Manufacturer: Scythe Co., Ltd., Japan
- Dimension: 150 x 86 x 150 (W x H x D) mm
- Weight: 5.2lbs (550W Model)
- Type: ATX ver2.03, ATX12V ver2.2
CPU Compatibility
- ATX Motherboard
- Intel® Pentium® 4
- Intel® Pentium® D
- AMD AthlonXP/64 etc.
- *Perfect for Dual Core !!
FAN:
- Dimensions: 90 x 90 x 25 mm
- Noise Level: 19dBA ~ 25dBA
- Function:
- Auto Fan Control
- ECASO (Enhance Cooling After System Off)
Connectors:
- 20+4pin ATX Main powerX1
- ATX12VX1
- PCI Express
- 6-pin X2
- FDD X2
- 4-pin X9
- SATA X4
AC Input & DC Output Power Specifications
| AC Input |
100V 10A 50/60Hz |
| DC Output |
+3.3V |
+5V |
+12V1 |
+12V2 |
-12V |
-5V |
+5VSB |
| KMRK-550A-2 |
Max Rated Current |
28A |
50A |
20A |
20A |
1A |
.08A |
2.5A |
| Max Wattage |
250W |
372W/396W |
12W |
4W |
12.5W |
| 530W |
28W |
| Peak Power |
650W (60sec) |
The Kamariki comes in a black box with a picture of the PSU on the front and a description of the PSU on the box top. The name of the PSU is the Scythe Kamariki II ATX Power Supply (ATX 12V ver 2.2). Scythe says the PSU is extra silent, and in operation, the PSU was barely audible in full operation reading under 20dBA. Scythe includes the PSU, the caps for the Molex and power connectors when they are not being used, a power cord and 4 mounting screws. The caps are an especially nice touch, as most PSUs don't have them. The PSU has a 24-pin ATX power connector with a 4-pin removable connector, allowing the Kamariki II to use modern motherboards that require it.
Scythe has a few unique features on the Kamariki II PSU. ECASO stands for Enhanced Cooling after system off. The fans spin for 3 minutes after the system is turned off. The PSU comes outfitted with a 90mm fan to keep the PSU cool during operation. The weight of the PSU is 5.2 lbs, a nice solid weight. The dimensions of the PSU are 150x86x150 mm. When looking at the feature list, something catches my eyes right away. Two PCI Express 6-pin power connectors are attached to the Kawariki and Scythe says the PSU is SLI ready. Looking closer at their Specification, you can see that the Kawariki does not support SLI with the GeForce 6800Ultra or QuadroFX cards.
In operation, the PSU did not operate at all with two 7900GTXs in SLI mode or with two X1900XTX cards in Crossfire installed. The system would power on, go through POST, start to load Windows and spontaneously reboot. Rather disappointing for a PSU with a 550W rating and a 650W Peak output. Taking a look at the Amperage ratings of the PSU, the problem is apparent. ATI and NVIDIA recommend 38A on the 12V rail. Scythe has a maximum rating of 20A on each 12V rail, making it borderline. The other features on the PSU are excellent. The inclusion of 9 Molex connectors and 4 SATA connectors makes this board an excellent choice for the upgrade-minded individual looking to install several devices on any system with a single video card. The fan is quieter than any fan I've seen on a PSU and that's saying a lot. In operation, the PSU is so quiet that the CPU fan and the video card fan on my test station drown it out.
