Our load tests utilize a couple of FAST ATE active load testers and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there and progressively load down the PSU up to the power supply's limits or 1000W, whichever comes first. Since our test equipment's limits are equal to that of the Zalman ZM1000-HP Plus, we can test it to the maximum.
Zalman's ZM1000-HP Plus performs excellent throughout all of our tests. All of the rails show minimal changes in voltages and never even come close to falling outside of the ATX specifications. Efficiency was also spot on for the 80Plus Silver rating on the power supply. Zalman has also managed to keep the ripple down on the 12V rail. Even under full load, the ZM1000-HP Plus only measured 28mV peak to peak.
The dual heat pipe design combined with the 140mm fan kept the Zalman ZM1000-HP whisper quiet through all of the tests as well and could barely be heard. It wasn't until the power supply reached the third test that the fan even became audible which is approximately 56% load. The fan noise remained the same throughout the rest of the tests.
Zalman has produced a very solid power supply with the ZM1000-HP Plus. It performed very well in our load tests and one simply can't ask for a power supply to perform much better. Zalman's inclusion of dual heat pipes to cool the power supply coupled with a large 140mm fan to dissipate the heat and provide fresh air is fantastic. It keeps the power supply nearly silent even under load and makes it ideal for those seeking silent powerhouses.
Zalman could still do several things to improve the quality and value of the unit. The price is quite steep for a 1000W power supply. There are many others out there that offer nearly the same output performance wise for much less, but aren't quite as silent. Not utilizing a grommet as the wires come out of the power supply is something that I have only seen in a handful of power supplies over the last five years or more, and never in such a high end unit. The warranty on the ZM1000-HP is also a bit short, especially when looking at the offerings of other high end power supplies available.
After the great capacitor fiasco of the early 2000's, many people still remain highly reserved about any PC product that incorporates them and is one of the main reasons there has been such a large focus the past couple of years on pointing out the inclusion of Japanese capacitors. Zalman made sure to point out that the power supply used Japanese capacitors on the box, but didn't mention that it was only throughout part of the power supply. It would be nice to see 100% Japanese capacitors through the entire PSU.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction, Specifications, Availability and Pricing]
- Page 2 [The Packaging]
- Page 3 [Inside the Box]
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- Dragon Ball FighterZ first DLC unlocks Broly, Bardock
- Final Fantasy XV PC mods can be whimsical and absurd
- Atari gets into crypto, offers Atari Token and Pong Token
- AMD offers free Ryzen APU so owners can flash their firmware
- SanDisk now shipping 400GB microSD card, pumps 100MB/sec
- Noctua NH-L12S CPU Cooler Review
- MSI Z370 TOMAHAWK (Intel Z370) Motherboard Review
- Apricorn Aegis Fortress 128GB SSD Review
- Scythe Grand Kama Cross 3 CPU Cooler Review
- OWC ThunderBlade V4 4TB Review
- Micron Launches Industry's First Enterprise SATA Solid State Drives Built on Leading 64-layer 3D NAND Technology
- Micron, Rambus, Northwest Logic and Avery Design to Deliver a Comprehensive GDDR6 Solution for Next-Generation Applications
- Toshiba Memory America Unveils UFS Devices Utilizing 64-Layer, 3D Flash Memory
- ASUS Announces GeForce GTX 1070 Ti Series Gaming Graphics Cards
- ASUS Announces ASUS Hangouts Meet Hardware Kit