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Rosewill Tachyon 1000 W

crmaris

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Rosewill recently introduced their flagship series named Tachyon, which lists four Platinum efficiency PSUs made by Super Flower. The Tachyon 1000 W is the strongest unit of the series and supports up to three high-end VGAs, thanks to its powerful +12V rail and to the six PCIe connectors it is equipped with.

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Question - why did you do tests at 1100W on page 5?
 

crmaris

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overload tests. To check if the PSU handles well some extra load (110%).
I included this test after some demands..
 
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overload tests. To check if the PSU handles well some extra load (110%).
I included this test after some demands..

I thought as much, just wasn't sure - you should've included that info in the review so people liek me don't get confused. :) Also I would've added a note about the build quality issue (fan control PCB) in the "negatives" in the summary.

Any idea why SuperFlower went with 10 IPP041N04Ns when 2 would've been able to comfortably handle this PSU's capacity? Perhaps this amount of overkill is one of the reasons for the exceptional +12V stability?
 

cdawall

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Any news on when/if you are getting the 1600w model?
 

crmaris

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I thought as much, just wasn't sure - you should've included that info in the review so people liek me don't get confused. :) Also I would've added a note about the build quality issue (fan control PCB) in the "negatives" in the summary.

Any idea why SuperFlower went with 10 IPP041N04Ns when 2 would've been able to comfortably handle this PSU's capacity? Perhaps this amount of overkill is one of the reasons for the exceptional +12V stability?

Because I didn't have a second sample in hand to check if the fan PCB issue is replicated or fixed, this is why I didn't added to the negatives. However I deducted some build quality points. And the thing is that with a little glue this problem would be easily solved.

More fets working in parallel mean less Amps passing by from them so less energy losses. This leads to efficiency increase. The +12V stability has more to do with the feedback circuit and the overall design of the secondary side rather than the number of rectifying fets.
 

cdawall

where the hell are my stars
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27,670 (4.75/day)
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System Name All the cores || Into the Blue
Processor 2990WX || 5960X
Motherboard Asrock X399M || Asus X99M WS
Cooling CPU-XSPC RayStorm Neo, 2x240mm+360mm, D5PWM+140mL, GPU-2x360mm, 2xbyski, D4+D5+100mL || TBD
Memory 4x8GB G.Skill Trident Z 3200 CL16 || EVGA 3200 2x8GB
Video Card(s) (2) EVGA SC BLACK 1080Ti's || EVGA 1080Ti FE
Storage 2x Samsung SM951 512GB, Samsung PM961 512GB || OCZ Vector 180 480GB
Display(s) Dell UP2414Q 3840X2160@60hz || TBD
Case Caselabs Mercury S5+pedestal || Supermicro S5 (GS5A-753K)
Audio Device(s) Fischer HA-02->Fischer FA-002W High edition/FA-003/Jubilate/FA-011 depending on my mood
Power Supply Seasonic Prime 1200w || Seasonic Snow Silent 750w
Mouse Thermaltake Theron, Steam controller || TBD
Keyboard Thermaltake Poseidon ZX, Steam controller || Corsair K70
Software W10P || W10P

crmaris

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I just hope they will send one because so far I don't have a confirmation on this :)
 
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