Summary: In my opinion the Zalman ZM1000-HP Plus is overpriced for what it offers. It may emit low fan noise even at full load and with very high ambient but its performance is far from perfect. Especially the loose voltage regulation at 3.3V and failure of the same rail in Advanced Transient Response testing worries me. In addition the lack of a second EPS connector in a 1000W PSU is silly.
Pros: Silent operation even at full load and with >50°C, Good efficiency, Tight 5V & 12 V voltage regulation, Excellent performance of +12V in Advanced Transient Response tests, Great ripple/noise suppresion at 3.3V and quite good at +12V, Supports up to three hi-end graphics cards
Cons: High price, 3.3V failed in both Advanced Transient Response tests, Loose voltage regulation at 3.3V, Mediocre efficiency at, Long, might not fit all cases, Lacks a second EPS connector, We would like to see six 6+2 pin PCIe connectors (it has three 6 pin and three 6+2 pin), Power distribution not optimal
The ZM1000-HP Plus power supply is the latest and largest addition to Zalman’s line of PC switching power supplies. It features a combination of fixed and modular cables, support for multiple high-end graphic cards, and is 80 Plus Silver certified. The ZM1000-HP Plus uses two heat pipes to augment the internal cooling system for increased reliability and to help reduce noise.
Summary: Final Thoughts
The Zalman ZM1000-HP Plus is a mighty fine PSU. Its 80PLUS Silver and SLI certification, plus the dual heatpipe cooling system and excellent connectivity.
I would have liked to see Japanese capacitors throughout the whole unit, though, and not just the first stage. The price is also still up there near the $250 mark, but it’s competitive with similarly spec’d models from competitors.
ThinkComputers gives the Zalman ZM1000-HP Plus a
9 out of 10
Summary: We initially plugged the PSU into an EZ PSU Tester 3 in order to power it on for our "idle" measurements. As noticed below, the voltage rails were fairly stable with no load, but these aren't necessarily indicative of overall load performance. According to our Kill-a-Watt, the power draw was 9W.
Pros: Low electrical noise, Rated at 1000W continuous, Mostly modular with lots of peripheral and SATA connectors, Very stable with a fairly heavy load, 14cm and heatpipes keep it cool and quiet - inaudible over any other fan, Should work in all but extreme systems.
Summary: The Zalman ZM1000-HP is really irritating. We don't want to like or recommend it because it's a gargantuan power supply of the type we have mixed feelings about... at best. No one needs a 1000W PSU. But...
Summary: If you're in the market for a high wattage power supply but you require it to be ultra quiet, be sure to checkout the Zalman ZM1000-HP 1000W Quiet Power Supply. Since it has a quiet 140mm fan, honeycomb ventilation and heatpipes it remains cool in almost any environment. It has modular leads and efficiency is also above 86%. It even comes with a unique Standby Noise Filter Switch which eliminates high frequency noise in standby mode. Watch the video to find out more...
Excerpt: Another one of those quality products is the subject of our next review. The ZM1000-HP is one powerful power supply and it is also good looking. This six 12-volt rail 1000 watt behemoth is a sterling dark gray glossy finish that is pretty attractive without being flashy. And while I am on the exterior features of the ZM1000-HP is mostly modular for unlimited cable management possibilities.This power supply has all that one would need in a unit to power the best of...
Excerpt: The ZM1000-HP power supply is the latest and largest addition to Zalman’s line of PC switching power supplies. It features a combination of fixed and modular cables, support for dual CPUs and multiple high-end graphic cards, and can deliver up to 1,000 watts of continuous DC output. The ZM1000-HP uses two heat pipes to augment the internal cooling system for increased reliability and to reduce noise.
Summary: If your Christmas shopping list includes a power supply and money is not a problem, then go get the Zalman ZM-1000HP now! But only if you can live without a power switch. This and the longer size are the only two shortcomings I can find with this unit. I don't understand why Zalman has added a useless "standby filter" switch but no power switch, which costs something in the neighbourhood of 2 cents to implement.
Pros: Extremely quiet, 1000W of power, Stable output voltages, Large number of connectors, Modular, Six 12V rails, Cables are fully sleeved, 3 Year warranty
Cons: High price, No power switch, Longer than ATX standard