Kingwin KWI-450 Power Supply
Review by David R. Hedges on 04.04.2003
Product provided by: Kingwin
Price: $68 (Newegg.com)
Power
The KWI-450 power supply is, of course, rated at 450 watts. This means in can theoretically provide power for components, up to a total of 450 watts of power consumption. Without going through and explaining a page of mathematics and tables step by step, what this means for the user, is that a whole lot can be run off this power supply. For some context, a Western Digital 800JB (80 MB Special Edition with 8 MB cahe) hard drive uses 8 - 17 watts, varrying from idle, or read/write, seek, or spinup. An AMD XP Processor tends to use 60-70 watts of power. A high-speed CD burner can range from 12 - 30 watts, from reading to writing to spinup. Electrical specifications should be included with most every product, and may be printed in watt consumption, or voltage / current consumption. If only voltage and current (Amps, or mA) specifications are given, the wattage can be derived by simply multiplying the two values together.
Test Setup
This power supply was loaded into the largest case Techware Labs had available, and then that case was filled to its capacity. Every single device attached to the system found to consume power is listed below.
- Gigabyte GA-7VRXP
- AMD XP 1900+
- 512 MB PC2700 DDR
- Leadtek GeForce 4 Ti4600 AGP 128 MB
- HighPoint RocketRAID 404 PCI
- Netgear FA311 PCI
- Creative Labs SoundBlaster Live 5.1 PCI
- 4x Western Digital 800JB (80 GB with 8 MB cache) ATA/100
- 2x Maxtor DiamondMax 40 GB, 2 MB cache, ATA/133
- Plextor 48/24/48A
- Plextor 24/10/40A
- 1.44 MB Floppy Drive
- Microsoft Internet Keyboard PS/2
- Microsoft IntelliMouse Explorer 3.0 PS/2
- FujiFilm FinePix 2600z USB
- Creative WebCam Pro USB
- Handspring Treo 180 USB
- 2x 120 mm fans
- 2x 80 mm fans
- 60 mm fan
- 2x 35 mm fans
Additionally, even with the largest case available, and the most components and fans the case could hold, there was no shortage of molex connectors. This is contrasted with the case's included power supply, which required molex splitters to accomodate the number of devices present, and displayed system instability with this amount of power consumption.
Voltage and Temperature information with stock PSU
Voltage and Temperatures with KWI-450W
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