Quality of new CWT 80plus Gold PSUs

[adict2jane]

I have the opportunity to purchase the PSU below for less than $50usd:

http://80plus.org/manu/psu/psu_reports/SP690_CWT_PUK500V-G_ATX12V_500W_Report.pdf

So obviously, it's quite efficient, but I am unsure of the overall quality of the PSU. Any ideas? What branded PSUs use the guts from this thing?

Thanks in advance,
:)

[Hondacity]

you have a cwt brand psu?

got pics?

[Travis]

PUK platform? It's fine, but I guess no brand is using this platform.

[adict2jane]

I am working on getting pics from the seller. All I know at this moment is that is was a demo unit and fully functional, so it is very slightly used.

So should i jump on this? What do you guys think? I need a new ~500W PSU and the more I look at prices on newegg, the more attractive this CWT is...

[jonnyGURU]

Just FYI: It's not really 80 Plus Gold. At least not the unit you'll get. Only the unit submitted to 80 Plus was Gold. ;)

[adict2jane]

WOW! A reply from the man himself!

hmm, ok, well I assume the unit will at least be close to 80plus gold. Right? Or are you referring to a "bait and switch" where the unit I get will be made of different components?

[jonnyGURU]

It'll be very close. Hardly worth mentioning if it weren't for the moral dilemna involved. ;)

[adict2jane]

Unfortunately no pics from the seller. He did tell me some information that was worrying to me. I asked if the unit had 40A on the +12V line just like this unit:
http://www.cwt.com.tw/english/2_product/1_detail.php?ID=930

He responded by saying it had +12V1 = 30A, and +12V2 = 30A. Simply math says that's impossible for a 500 watt unit. I am waiting a reply to make sure he simply didn't give me the specs off another more powerful unit he is selling.

[Zero82z]

Unfortunately no pics from the seller. He did tell me some information that was worrying to me. I asked if the unit had 40A on the +12V line just like this unit:
http://www.cwt.com.tw/english/2_product/1_detail.php?ID=930

He responded by saying it had +12V1 = 30A, and +12V2 = 30A. Simply math says that's impossible for a 500 watt unit. I am waiting a reply to make sure he simply didn't give me the specs off another more powerful unit he is selling.
Presumably those are just the individual OCP limits for the rails. The combined maximum rating is surely lower.

[jonnyGURU]

Right. You NEVER take +12V1, +12V2, etc. and add them together.

[Phaedrus2129]

Yeah, I've seen 500W with four 20A +12V rails... But it was a cheap-o and I'd be surprised if it could do 35A total.

[crispy]

you have a cwt brand psu?

got pics?
Not a good photographer, sorry
This is a PUK600V ( easy enough to see in the pic )
Silver rated according to http://www.80plus.org/manu/psu/psu_reports/SP644_CWT_PUK600V_ATX12V_600W_Report.pdf
PCB says PSHxY (85+)-MB Rev: 0.1

http://contrvlr.no-ip.org:12300/ussdirect/cb/IMG_2568.JPG

http://contrvlr.no-ip.org:12300/ussdirect/cb/IMG_2556.JPG

http://contrvlr.no-ip.org:12300/ussdirect/cb/IMG_2554.JPG

http://contrvlr.no-ip.org:12300/ussdirect/cb/IMG_2560.JPG

There's a guy on Ebay selling unit's that apparently came from a testing facility, for $31 shipped I couldn't resist.

[Zero82z]

Thermaltake. Interesting...

[Travis]

So the internal layout and components are tweaked from the original DSG design...

Did I see a relay on the AC input?

[jonnyGURU]

Thermaltake. Interesting...

Yeah. Funny there's a CWT label on the outside and a Thermaltake branded fan on the inside. ;)

[Hondacity]

thanks for the pics....obviously someone changed out the fan already...

heatsink looks like dsg....transformer ummm not sure

[van der decken]

So the internal layout and components are tweaked from the original DSG design...

Did I see a relay on the AC input?
could you please show me where the relay is? and what is the usage of the relay? thanks. :D

[Hondacity]

A relay is an electrically operated switch.

http://en.wikipedia.org/wiki/Relay

[MrWicked1968]

I have a CWT-branded PSU as well, bought it from jonny. has an integrated TEC. Louder than a turbo cool.

[tojoski]

What brand are the caps in that puk600?

There's a guy selling the 500's on ebay also.

[370forlife]

I was temped to buy one from that guy too. I bought his solytech sl-9600eps for curiosity and efficiency reasons. Good psu I would have to say.

Anyway, that looks like it has all UCC caps in it.

[tojoski]

any idea what that primary cap is? I havent been able to identify it.

for $30 it sounds like a good option for my nas box that runs 24x7

[crispy]

Nippon-Chemicon

[tojoski]

Awesome,

Thanks crispy..

Have you been using yours long?

[crispy]

You're welcome
I've had it for about 8 weeks and ran for only 1 to see if it would survive, it's waiting for a system to go into.
Connectors are minmal;
1 SATA
2 Molex ( one on each of 2 lines )
8 pin EPS with 4 pin tail ( I modded it to 4+4 )
2x 8 pin PCIE with 6 pin tails

About a month before buying it I got a TPN550 from the same guy, that's humming along in my son's box.

[tojoski]

just snagged it for $32 with shipping,

he still has one left..

http://cgi.ebay.com/CHANNEL-WELL-TECHNOLOGY-500W-POWER-SUPPLY-W-ACTIVE-PFC_W0QQitemZ180461378721QQcmdZViewItemQQptZPCA_UP S?hash=item2a04561ca1

[crispy]

Both gone.
Who else got one ?

[370forlife]

He still has about a bazillion of the FSP/Powerman 500W and 600W units.

anyone here snag that Great Wall 600W? I was curious as to what kind of quality great wall is under the hood.

[adict2jane]

Both gone.
Who else got one ?

That would have been me, I forgot about this thread but have been watching the auctions online. When I saw one got purchased I snagged the other as quickly as I could. Came here to say I bought it and will let you guys know if it works when I get it. :)

[tojoski]

Been using the PUK500V-G for about 2 days 24x7 and I am pretty pleased..

Running an Intel Xeon e3110 and a srcsas18e HW Raid card, and 4 (soon to be 5) WD 1TB Green drives, and 1 seagate 250GB boot drive. My kill-a-watt shows 88w on the AC side.

And right now its in rebuild after adding the 4th drive to the array. I haven't done any math, but that has to have the efficiency in the high 80's.