OCZ StealthXStream 600W enough for GTX 295?

Zulu342

Senior member
Dec 11, 2003
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Will the OCZ StealthXStream OCZ600SXS 600W be able to handle a GTX 295 card? I am looking to step up from a GTX 280 and was hoping not to have to swap out too many parts. My CPU is a Q6600.

Thanks!
 
Jan 27, 2009
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That supply will be a good match for the GTX295. Judging by the specs it has a maximum of 580W on the the 12V rail. The cards maximum power draw, estimated by nVidia, is 285W so you have a large margin to run the rest of your system.

Can I ask why you are keen to switch to a GTX295? They are kind of EOL, there might be a newer card out there that would suit you better.
 

Zulu342

Senior member
Dec 11, 2003
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Thanks NumericalMethods!

A friend is willing to tell me his for relatively cheap and I figure I can use a boost in performance. I'm in grad school now so not looking to spend a lot on upgrades.
 

alexruiz

Platinum Member
Sep 21, 2001
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I will go against the rest of the folk and say the PSU won't make it.
I had that same PSU and it crashed with crossfire Radeon HD4830s, which should be even less than a single GTX295 (CPU was a Phenom II X4 955BE)

The reason? While it seems very strong with 4 12V rails at 19-20A each, the retarded OCZ engineers followed the EPS spec, which calls for 2 rails to the CPU. Hence, it has only one 19A rail dedicated to videocard. It won't make it.

Check the rails distribution.



Alex
 

theAnimal

Diamond Member
Mar 18, 2003
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That supply will be a good match for the GTX295. Judging by the specs it has a maximum of 580W on the the 12V rail. The cards maximum power draw, estimated by nVidia, is 285W so you have a large margin to run the rest of your system.

I believe it is actually 528W on the 12V rail, and also does not have the necessary connectors for a GTX295 (only 2 6-pin).
 

Rifter

Lifer
Oct 9, 1999
11,522
751
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It might work, OCZ is not known for making strong PSU's. I would probably run it while i waited for a good sale on a quality 650W unit. my .02
 

GodisanAtheist

Diamond Member
Nov 16, 2006
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Friend had a 600 watt stealthxstream which killed a legion of his videocards before it was discovered to be the culprit. Have people return them all the damn time at work, had one burst into flames, and on newegg where really negative reviews are supressed the 700w model (only one they show) has a whopping 45% 3 egg or lower score with hundreds of reviews. Stay the he'll away from that turd.
 

Rifter

Lifer
Oct 9, 1999
11,522
751
126
Friend had a 600 watt stealthxstream which killed a legion of his videocards before it was discovered to be the culprit. Have people return them all the damn time at work, had one burst into flames, and on newegg where really negative reviews are supressed the 700w model (only one they show) has a whopping 45% 3 egg or lower score with hundreds of reviews. Stay the he'll away from that turd.

this would be exactly why i said they are not known for making strong PSU's.
 
Jun 6, 2010
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The OCZ StealthXStream 600W is a quality (although rather old) PSU from FSP that is able to run even an ATI5850 or your GTX280 easily. However, in my opinion, it is not the proper unit for handling a GTX295. Its maximum combinated power for the +12V, +3,3V and +5V is 580W, but as Alex said, its power distribution is not the best possible. Only the +12V4 (18A) provides energy to the two PCIe connectors. Other two rails are for the CPU and the last one is for the peripherals. It is far for being enough.
If you want to do the upgrade, I recommend you to go for a quality 650W PSU which has not less than two PCIe connectors (one of them with 8-pin).
The ANTEC TruePower New 650W is a very good choice.
It presents a high efficiency (80 Plus Bronze certified), very good voltage regulation and ripple and noise supression. It is made by Seasonic.
It comes with semi-modular (hybrid) design (it presents some cables permanently attached to the PSU). It will handle your high-end graphic card without any problem. It has four (6+2)-pin PCIe connectors. They get the power from two 25A rails (all for themself). There are four independently regulated +12V rails rated at 22A (two of them) and 25A (the other two) which are over current protected. The max. combined +12V rating is 54A (648W).
All electrolytic capacitors are Japanese from Chemi-Con (in the primary there is one capacitor which is labeled at 85º C while the caps in the secondary are labeled at 105ºC). In the DC-DC converter they have used solid aluminum capacitors (this PSU is based on a DC-DC converter on the secondary which is in charging of converting the +12 V output into +5 V and +3,3 V).

Finally, It has five years warranty from Antec.
 

HOOfan 1

Platinum Member
Sep 2, 2007
2,337
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I'd go modxtreme for OCZ only, otherwise avoid.

The ModXstreams are the same as the StealthXstreams...only modular.

The ModXstream Pros also suck

The Z Series are ok....although they were overpriced...seems they had to slash the price on them by a lot to actually sell them.
 
Jun 6, 2010
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The ModXstreams are the same as the StealthXstreams...only modular.

The ModXstream Pros also suck

The Z Series are ok....although they were overpriced...seems they had to slash the price on them by a lot to actually sell them.

The current ModXStreams (Pro) series (by Sirtec) have nothing to do with the StealthXStream series (by CWT and FSP).

http://www.realhardtechx.com/index_archivos/Page1373.htm

The old ModXStream series had higher wattage (780-900W) than the StealthXStream series (400-700W).

By the way, the OCZ StealthXStream 600W is not the best unit that you can get on the market or from OCZ, but it is a quality mainstream PSU which can be used to handle even an ATI 5850 without any problem.
 

HOOfan 1

Platinum Member
Sep 2, 2007
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I know very well who made the PSUs...and the old ModXstreams and the StealthXstreams over 400W were all FSP Epsilon...which was a horrible platform for anything over 600W.
 
Jun 6, 2010
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...which was a horrible platform for anything over 600W.

...so there is no problem at all with the FSP's StealthXStream 600W or with the CWT's StealthXStream 400W or with the Sirtec's ModXStream Pro (500W-600W).
On the other hand, the new StealthXStream II series (by FSP too) is receiving "recommended" awards from qualified reviewers too.
What I'm trying to say is that OCZ is putting on the market PSUs with a good quality/price ratio. I can not understand why so much hatred against OCZ in the forums from some people.
 

crucibelle

Senior member
Feb 21, 2005
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I can not understand why so much hatred against OCZ in the forums from some people.

I think there's probably a good reason, but I wonder, too. Back when I used to hang out a lot on this forum (2006 or so), these OCZ psu's were being recommended left and right. I go away for a while and come back, and now they are hated psu's.. lol. Right now Corsair psu's are really popular. Wonder if they'll be considered crappy in 3 or 4 years. That said, from what I've read.. these OCZ psu's have had a rather high failure rate and I've heard others say that OCZ's customer service is lacking.
 
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