Date: November 30th, 2005
Article by: Joe Anderson (Hardware Reviewer)
Edited by: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: Zalman
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PRODUCT PICTORIAL AND WALKTHROUGH
Zalman has fitted these “EZ Grip Connectors” to ease removal of the 4-pin molex connectors from optical or hard drives. I've used these little gadgets before and I like them a lot. Not only do they ease removal, the also help protect against pin damage to the devices.
This little adapter, which Zalman calls the Multi-Connector (ZM-MC1), can be used to power up to four fans with 3-pin connectors. The black sockets provide 12V and the white ones deliver 5V to the fans.
The side label provides information about the wattage, voltage, and amperage specifications for the ZM460. One interesting feature of this PSU is its dual +12V rails. With a combined 34 amps (16A + 18A), one rail delivers power exclusively to the motherboard components, while the other supplies power to the peripherals. I personally like this design, but a case can be made that in some maximum effort applications, a single rail of 34A or more would be desirable.
I don't have the kind of sophisticated electronic instruments required to fully test and benchmark a PSU at my disposal. However, we can get some meaningful data by attaching the ZM460 to a system and monitoring the rails with a digital multimeter. This will give us some idea of the PSU's ability to deal with varying loads and how stable the rails are in a “real world” situation.
The testbed consists of the following components:
- DFI Lanparty nF4 SLI-DR Motherboard
- AMD Opteron 148 CPU
- 512 MB X 2 G. Skill PC4400 DDR Ram
- eVGA GeForce 7800GT-CO
- WD Raptor
- Windows XP Pro SP2
The following results were obtained with the system idle at desktop for 15 minutes:
With several benchmarking and stress testing programs running, the following voltages were obtained:
All rails were on the high side of ideal and remained easily within spec no matter how hard I pushed the system. The numbers speak for themselves and show solid rails with outstanding stability. The PSU fan was turning so slowly that I could almost read the label in the center. Throughout several hours of testing, the fan never made any noise. As Zalman promised, the ZM460 is silent!
The fan multi-connector also performed as advertised. In the photo above you can see that the LED lighting is noticeably brighter with the fan on the right. The fan on the left, however, was noticeably quieter.