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Which PSU would you choose?
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Response Number 1
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Name: jam
Date: November 10, 2007 at 17:07:56 Pacific
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Reply: (edit)I'm a fan of FSP Fortron but I don't like the +12v rails specs on that model (4 @ 15A each). The Antec has better +12v specs (3 @ 19A each) while the PC Power has a single +12v @ 49A. The PC Power unit is *probably* the best, but it's also the most expensive. What kinda system is it gonna be used in?
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Response Number 2
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Name: jackbomb
Date: November 10, 2007 at 20:19:18 Pacific
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Reply: (edit)So a single large rail is better than multiple small ones. Do you think that the PC P&C is worth the extra money over the Antec? It's going to be used with my current S939 Opty system, except with an additional 8800GTS-640 card installed (got it for one heck of a deal on eBay awhile back).
So it'll be powering an Opteron CPU at 3GHz, two 8800GTSs, two hard drives, two optical drives, 4GB of RAM, one PCI card, and one PCI-E X1 card. The Movie PC:
Pentium III-S CPU: 1.66GHz, 158MHz FSB, 512K
2GB DDR333
7950GT AGP
Vista/XP
X-Fi
Optoma 1280x720 projector
JBL 5.1 audio
and now 89 upconverted WMV-HD flicks
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Response Number 3
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Name: jam
Date: November 11, 2007 at 07:14:22 Pacific
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Reply: (edit)When the ATX12V standard was 1st changed & the split +12v was introduced, it was a good idea. One +12v rail (+12v1) was dedicated soley to the CPU thru the 4-pin ATX12V plug & the other +12v rail (+12v2) was for the rest of the hardware that needed it (fans, HDDs, optical drives, etc). The standard set an 18A limit (20A maximum) per rail. This was mostly done as a safety measure "to meet the requirements of UL and EN 60950". It was all well & good at 1st, but then video card power requirements started to grow. Additional +12v rails were added by many PSU manufacturers, but we're now at the point where even a dedicated +12v @ 18A rail for the video card isn't enough. If you check the specs of many of the high end cards, you'll see the manufacturers are recommending not only a minimum wattage PSU be used, but are also stipulating the +12v amperage requirement. For example, EVGA states that the "e-GeForce 8800GTS 640MB Superclocked" video card requires: "Minimum of a 400 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 26 Amp Amps.)" This article may help shed some light on the single vs mulitple +12v rail design dilemna: http://www.anandtech.com/casecoolin...
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Response Number 4
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Name: Sabertooth
Date: November 11, 2007 at 17:36:33 Pacific
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Reply: (edit)I have a Fortron PSU in this system & I can personally attest to the brand's reliability. However, I have yet to pay $120ish for a PSU -- my 500W BlueStorm (when I got it) only set me back $75 at the time & every once in a while I still feel like I paid too much .... LOL! With what you've listed & the pricing of the three: I would still go with FSP. If the PC Power & Cooling is considerably cooler & less noisy, I might be willing to go with that instead of FSP. The TP Trio from Antec will be my last choice .... I can't believe I just stated that ;-)
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Response Number 5
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Name: jackbomb
Date: November 12, 2007 at 20:00:10 Pacific
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Reply: (edit)jam doesn't like the Fortron's specs and Sabertooth steers away from the Antec when confronted with the three choices. Both seem to agree that the PC Power model is a good choice. I guess the PC Power and Cooling model it is. Thanks!
The Movie PC:
Pentium III-S CPU: 1.66GHz, 158MHz FSB, 512K
2GB DDR333
7950GT AGP
Vista/XP
X-Fi
Optoma 1280x720 projector
JBL 5.1 audio
and now 89 upconverted WMV-HD flicks
Report Offensive Follow Up For Removal
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