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Old October 15, 2012, 07:56 PM
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Originally Posted by Bond007 View Post
Here is a great power supply for a great price (its seasonic oem) after price match at memory express. Return the staples one.

On sale for $75 at NCIX
Antec HCG-620M 620W ATX12V Modular SINGLE-RAIL 48A 80PLUS Bronze 135mm Fan Active PFC Power Supply

Its $120 at memory express, so $63.74 after pricematch at ME.

Antec High Current Gamer 620W Modular Power Supply at Memory Express
When I called Memory Express they were out of stock on this unit - and although they would sell me one from one of their stores they would not offer their price matching on products they were "out of stock" on. But they were not really out of stock, just out of stock in their On Line warehouse. Had I been able to get to the Edmonton store I could have bought one. I called the store and they cannot sell over the phone. Not a happy customer here.

I did call my local computer store he said he had a 650 Antec for $100.00 Turns out it was a model - Antec EarthWatts EA 650W Power Supply Green at Memory Express

But he pointed out that the voltage output is not adequate for some of the video cards that are coming out.

He talked me into the $110 Thermaltake TR2 RX 750. He said that they use that one in the gaming builds they make and sell at his shop - he does a brisk business selling custom PC's. "Never had a problem with one". And its modular & Bronze 80 certified. Thermaltakeusa*»*Power Supply*»*600W - 850W*»*TR2 RX 750W : TR2 RX 750W TRX-750M

I've read good reviews of this unit - and some that are not so good.

FKD
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  #12 (permalink)  
Old October 15, 2012, 07:57 PM
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And I did get a full refund at Staples.
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  #13 (permalink)  
Old October 16, 2012, 04:06 AM
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Originally Posted by fortkentdad View Post
He talked me into the $110 Thermaltake TR2 RX 750. He said that they use that one in the gaming builds they make and sell at his shop - he does a brisk business selling custom PC's. "Never had a problem with one". And its modular & Bronze 80 certified. Thermaltakeusa*»*Power Supply*»*600W - 850W*»*TR2 RX 750W : TR2 RX 750W TRX-750M

I've read good reviews of this unit - and some that are not so good. FKD
Sorry to say, but you have now bought a second power supply that I would not. For your rig a quality 500-600w PSU is all you need. You can get something far better in the $50-70 range if you catch a sale.

For power supplies I often go to Hardwaresecrets. Their review of your new power supply here:

Thermaltake TR2 RX 750 W Power Supply Review | Hardware Secrets

If you don't feel like reading the whole thing, here is the conclusion:
"Thermaltake TR2 RX 750 W is, according to our methodology, a flawed product that must be avoided at all costs. It can’t deliver its labeled wattage at high temperatures, but this is not the worst of it: ripple and noise level are way above the maximum allowed when you pull 80% or more from the unit’s labeled capacity (i.e., 600 W and above), overloading your components (especially electrolytic capacitors from the motherboard and video cards), which can cause your PC to present an erratic behavior (crashes and random resets) and, under extreme conditions, damage components."
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  #14 (permalink)  
Old October 16, 2012, 04:29 AM
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Quote:
Originally Posted by fortkentdad View Post
When I called Memory Express they were out of stock on this unit - and although they would sell me one from one of their stores they would not offer their price matching on products they were "out of stock" on. But they were not really out of stock, just out of stock in their On Line warehouse. Had I been able to get to the Edmonton store I could have bought one. I called the store and they cannot sell over the phone. Not a happy customer here.

I did call my local computer store he said he had a 650 Antec for $100.00 Turns out it was a model - Antec EarthWatts EA 650W Power Supply Green at Memory Express

But he pointed out that the voltage output is not adequate for some of the video cards that are coming out.

He talked me into the $110 Thermaltake TR2 RX 750. He said that they use that one in the gaming builds they make and sell at his shop - he does a brisk business selling custom PC's. "Never had a problem with one". And its modular & Bronze 80 certified. Thermaltakeusa*»*Power Supply*»*600W - 850W*»*TR2 RX 750W : TR2 RX 750W TRX-750M

I've read good reviews of this unit - and some that are not so good.

FKD
Seriously, take it back and refer the sales"person" to online reviews. For $100 you can get a real quality PSU.
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Old October 16, 2012, 08:23 AM
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This is getting a bit of a bother. First my currently working PSU is "scary" and should be retired. Then the one I bought at Staples is not up to snuff. Now the one I buy at our local computer store is "to be avoided". I did check several reviews which say that this is an acceptable "budget" unit.

Thermaltake 750W TR2 RX Power Supply Review Where the website has a warning about other testing sites and asserts "We at OCModShop.com thoroughly test our power supplies... "

plus my google search also returned these reviews.

THERMALTAKE TR2 RX 750W MODULAR POWER SUPPLY REVIEW | THERMALTAKE TR2 RX 750W - TWEAKNEWS - PAGE 6

Thermaltake TR2 RX 750Watt Power Supply Review - Conclusion

I am concerned and confused. Radically different opinions depending on the reviewer. I also have the assertion of the local PC tech selling the unit that it works well for them in their gaming builds. It's not like I don't know this fellow - I take him at his word on this and don't believe it is just a salesman's pitch, besides he had already sold me on the Antec before I came into the store and it was only $10 less.

I expect that he would let me swap out the unit for the Antec 650.

This is the alternate unit Antec.com - Product: EA-650

It is not modular and has a lower amp output, but for my needs is probably more than adequate. Here is the key amp output copied from Newegg details page: +3.3V@25A, +5V@25A, +12V1@22A, +12V2@22A, +12V3@25A, I read on another forum that "AMD recommends at least 25A on the +12v rail, for the HD6670" so the Antec unit just meets the spec and only on one of the three rails. Is just meeting the spec OK?

Do I return this unit and order something on line or go to the Antec and limit future graphic card capacity to max of 25 amp?

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Old October 16, 2012, 08:41 AM
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None of those sites have a clue how to test PSUs properly. It is actually insulting to readers....

Please check here for how a PSU SHOULD be tested: JonnyGURU.com

You'll see the differences in about 1/2 second.
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Old October 16, 2012, 08:47 AM
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From your first website review conclusions....

Quote:
As mentioned earlier, some people have found that this PSU can’t handle [COLOR=#000099 !important][COLOR=#000099 !important]full [COLOR=#000099 !important]load[/COLOR][/COLOR][/COLOR]. While we couldn’t verify this finding, we did notice how the variance and ripple increased with the load. Coupled with the average internal components, I wouldn’t find this possibility unbelievable. This unit costs $110 online, and for that price you can find a higher quality PSU like the Corsair TX line. Thermaltake makes great power supplies, but this mid-range line performs a little lower than an enthusiast should expect.
They themselves came up with a 4% varience on the 12V line from idle to load and that with a medium/high load (500W) compare that on their own charts with the corsair TX @ 1% and you end up with a 12V varience that's 400% worse than corsair's older line let alone their new one.

It's up to you of course, but if a company doesn't stand behind it's product enough to send it to somebody like jonnyguru for testing, it probably isn't up to the task of putting out it's rated power.
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  #18 (permalink)  
Old October 16, 2012, 10:02 AM
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Buy something antec seasonic corsair xfx. Don't let salespeople talk you into junk. Of course they are going to try and sell you what they have in stock/ whatever has the highest profit margin. 500- 600 watt in the brands I listed and on sale it will cost $50-70.
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Away from home light Gamer: Acer Aspire 15.6", A8-3500m undervolt and OC to 2Ghz, 2x4gb Corsair Vengeance, Crucial M500 240gb
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  #19 (permalink)  
Old October 16, 2012, 10:05 AM
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Quote:
Originally Posted by SKYMTL View Post
None of those sites have a clue how to test PSUs properly. It is actually insulting to readers....

Please check here for how a PSU SHOULD be tested: JonnyGURU.com

You'll see the differences in about 1/2 second.
Not sure if you will say or not, but how do you find hardwaresecrets for psu reviews?
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Away from home light Gamer: Acer Aspire 15.6", A8-3500m undervolt and OC to 2Ghz, 2x4gb Corsair Vengeance, Crucial M500 240gb
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  #20 (permalink)  
Old October 16, 2012, 10:42 AM
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Quote:
Originally Posted by Bond007 View Post
Not sure if you will say or not, but how do you find hardwaresecrets for psu reviews?
I have nothing against their PSU reviews. But, I have VERY strong opinions about the site and the conduct of its owner that are best left off of this forum.
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