Rosewill Quark 1000 Power Supply Review

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Today we take a look at Rosewill's Quark 1000. In addition to 80 PLUS Platinum efficiency and fully modular cabling, this $200 unit can support multiple GPUs.

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Ripple Measurements

To learn how we measure ripple, please click here.

The following table includes the ripple levels we measured on the Quark 1000's rails. The limits are, according to the ATX specification, 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).

Swipe to scroll horizontally
Test12V5V3.3V5VSBPass/Fail
10% Load38.3mV11.6mV11.7mV7.1mVPass
20% Load16.9mV11.9mV12.5mV8.6mVPass
30% Load15.7mV9.1mV13.1mV10.9mVPass
40% Load17.7mV12.6mV13.6mV12.7mVPass
50% Load20.2mV13.0mV15.2mV15.2mVPass
60% Load23.2mV13.3mV16.0mV17.1mVPass
70% Load24.3mV16.4mV18.8mV19.0mVPass
80% Load26.5mV16.9mV20.4mV21.4mVPass
90% Load29.4mV17.6mV21.5mV22.9mVPass
100% Load31.1mV21.3mV23.3mV26.0mVPass
110% Load33.6mV21.8mV23.9mV28.4mVPass
Cross-Load 129.4mV9.7mV12.3mV7.5mVPass
Cross-Load 230.5mV19.9mV22.4mV25.9mVPass
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Ripple suppression was pretty good on all rails. Only Super Flower's platforms managed to outperform this one's ripple performance at +12V, which is the rail we really care about since it feeds most system components.

Ripple Oscilloscope Screenshots

The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.

Ripple At Full Load

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Ripple At 110-Percent Load

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Ripple At Cross-Load 1

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Ripple At Cross-Load 2

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Aris Mpitziopoulos
Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.

9 Comments Comment from the forums
  • ern88
    I don't know of Rosewill is any better then it was a few years ago. I had friends with a rosewill PSU and it baked big time. Maybe they are better now. But I would stick with EVGA or another well known good company!!!
    Reply
  • justaguywithagun
    i wouldnt hesitate to replace my ~7y/o antec TP750 with a nice rosewill capstone unit when the time comes. in fact, thats essentially my plan. would i throw any rosewill unit in my rig/s? no i wouldnt, but every manufacturer i can think of has units that are less than desirable. rosewill has a come a long long way the last few years
    Reply
  • Calculatron
    1000 rules of acquisition?
    Reply
  • Larry Litmanen
    I don't know of Rosewill is any better then it was a few years ago. I had friends with a rosewill PSU and it baked big time. Maybe they are better now. But I would stick with EVGA or another well known good company!!!

    Obviously EVGA has amazing brand name and they deserve it because of their level of service. However as far as i know EVGA does not have any PSU making plants, they simply rebrand a unit made by Seaconic or another OEM. Many companies do that, so you can probably buy exactly the same unit from a different brand.

    I am not sure if Rosewill builds or rebrands, but i had their products and they are not bad, i personally have not had any issues.
    Reply
  • Aris_Mp
    Several Rosewill PSUs are build by Super Flower, the same OEM that also makes most of EVGA's offerings.
    Reply
  • none12345
    "I don't know of Rosewill is any better then it was a few years ago. I had friends with a rosewill PSU and it baked big time. Maybe they are better now. But I would stick with EVGA or another well known good company!!! "

    I duno if their large ones are as good. But ive had a 550 watt running in this computer for 6.5 years now with no problem. This is the first roswell one i had tried. Thats the longest ive ever stayed on the same power supply.(In the past it was either fry, or had to upgrade the size because of ever increasing component power usage)
    Reply
  • tomtom234
    companies that manufacture a Rosewill psu

    http://www.orionpsudb.com/rosewill
    Reply
  • Aris_Mp
    Like every company that wants to do well into this market Rosewill doesn't rely on only one manufacturer. They had strong ties with Super Flower in the past however they decided to go with other OEMs as well, since SF became so popular and cannot meet the demands of all the companies that want their products.
    Reply
  • Shalmaneser
    Does anyone actually do OCP, OVP, OPP / OLP, OTP, UVP, SCP, and
    NLO? (Something of a rhetorical question), short answer from google is no...

    Also, why is the list graphical? I'd like to have a character list to search through...
    Reply