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[dvHW] Corsair TX850W power supply released - Page 2

post #11 of 34
They always build solid products, this is just another fine addition to the lineup. Newegg just had an awesome deal on the TX650 which I bought for a friend, $97 w/ free shipping. Normally a $160 or so PSU.

I've had a couple of these and they're downright excellent build quality. Wouldn't touch anything but Corsair/Silverstone and a couple others.
    
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post #12 of 34
Only 1 rail? You can buy 4 rails currently! I know it's 70A, but it doesn't matter, as everything on 1 rail means any peak draws on the rail will suck power out of everything else and potentially crash those parts. I'd rather buy a 4 rail and know my parts are somewhat segregated from each other.
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post #13 of 34
Quote:
Originally Posted by Brythe View Post
^ Oh, I didn't refresh b4 posting.

shinji2k: Oh ok, I tried getting OEM names for other brands like Aerocool, Coolmax etc from the UL Listings site and they came out fine, never tried Corsair.
It does work sometimes but a lot of companies buy their own UL listing so it's not the most reliable way of finding an OEM.
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post #14 of 34
Quote:
Originally Posted by shinji2k View Post
How? Corsair has their own UL listing so the OEM won't be on it. Plus it's not hard to tell if you look into the exhaust grill. The CWT PSH has 3 sleeved coils with an x capacitor in between right in a row, it's hard to miss.
I thought that some of these Corsairs (the HX620, specifically) were manufactured by Seasonic..?
    
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post #15 of 34
Quote:
Originally Posted by txtmstrjoe View Post
I thought that some of these Corsairs (the HX620, specifically) were manufactured by Seasonic..?
Yeah, specifically the cx400, vx450, hx520, hx620 and vx650 are all from Seasonic.
Quote:
Originally Posted by Kuntz View Post
Only 1 rail? You can buy 4 rails currently! I know it's 70A, but it doesn't matter, as everything on 1 rail means any peak draws on the rail will suck power out of everything else and potentially crash those parts. I'd rather buy a 4 rail and know my parts are somewhat segregated from each other.
What do you mean exactly by peak draws? Nothing aside from a short can use all 70A of the 12V so there is no component that will "suck" power away from the rest of the system.
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post #16 of 34
Quote:
Originally Posted by shinji2k View Post
What do you mean exactly by peak draws? Nothing aside from a short can use all 70A of the 12V so there is no component that will "suck" power away from the rest of the system.
A peak draw is when a component draws the most amount of power it will draw. On a graph, it would be a spike in the power draw from that component. Even if it happens over a very short time frame (1 microsecond), it could be enough to cause other components issues. To counter this, all powersupplies use capacitors to store energy when it is in excess, and expel it when a peak draw comes along. As long as there was enough capacitor storage, 1 rail would be fine, but if there was not enough, then 1 rail could lead to issues. Most aftermarket car stereos, for instance, use a 1 Farad capacitor (or more) between the amps and alternator, so when the amps peak draw off of large bass hits, it doesn't stall the car or dim the lights.
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post #17 of 34
Quote:
Originally Posted by Kuntz View Post
A peak draw is when a component draws the most amount of power it will draw. On a graph, it would be a spike in the power draw from that component. Even if it happens over a very short time frame (1 microsecond), it could be enough to cause other components issues. To counter this, all powersupplies use capacitors to store energy when it is in excess, and expel it when a peak draw comes along. As long as there was enough capacitor storage, 1 rail would be fine, but if there was not enough, then 1 rail could lead to issues. Most aftermarket car stereos, for instance, use a 1 Farad capacitor (or more) between the amps and alternator, so when the amps peak draw off of large bass hits, it doesn't stall the car or dim the lights.
Ah, you are referring to transient loads. Having multiple rails will not improve power delivery under transient loads. Almost all multi rail PSUs are single rail, with an OCP to limit current to any one connector. By your reasoning, one of these spikes that would affect other components with a single 70A would probably trip an OCP set at 20A which sounds counterproductive to me (not to mention the fact that these huge transient loads don't exist in the magnitude that you are imagining in a computer PSU). In fact, the transformer is the greatest factor in how a SMPS will handle transient loads. Sure the primary cap is there to ensure a constant supply, but the caps involved with the 12V rail on the secondary have little capacity and are there as part of a pi-filter to reduce ripple.
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post #18 of 34
LOL wow still no HX750 or HX850..... Corsair is purposely trying to piss me off by leaving their huge modular wattage gap in there. straight from 620W all the way up to 1000W.... STUPID.
post #19 of 34
Quote:
Originally Posted by Marin View Post
Meh, wish they released a HX850.
Yeah me too. I would prefer modular if I ever went SLi or Crossfire but I wouldn't need 1000w.
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post #20 of 34
Quote:
Originally Posted by Auld View Post
LOL wow still no HX750 or HX850..... Corsair is purposely trying to piss me off by leaving their huge modular wattage gap in there. straight from 620W all the way up to 1000W.... STUPID.
Fully agree, and especially considering the fact that rumours nailed this one right - it likely means that 1200w hx is around the corner as well.
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