1000 whats!

[everell]

Just got my first 1000 watter.....well, actually only 950 watts, but close enough. It is a Tunia model PSU-MIN950-BK. I have no idea who the OEM is, but it sure is pretty!

It supposedly has a problem, but I was able to power it up, and rail voltages were all within spec. Having never had anything this monsterous, I doubt my puny amount of load will tell me much. Even in a real working computer, I don't think I have anything that a 250 watter wouldn't power. So it leaves me with lots of whats! What in the world am I going to do with it, and how will I be able to test it.

So here are some pictures.

[shovenose]

Re: 1000 whats!

eerrmmm-give it to me maybe?

[Toasty]

Re: 1000 whats!

What's the "E" code under the UL marking. Looks like E316120 ...? Which returns no hits in the UL Online Cert Directory.

80 Plus Report:

[Toasty]

Re: 1000 whats!

Ahh, some digging...
http://www.allquests.com/question/40...v-Ratings.html

ATNG is the OEM for the Tuniq Miniplant

Miniplant MIN-950-BK ~67A

http://www.atngpower.com.tw/p2-13.htm

Sirtec is OEM for Tuniq Ensemble series:
Ensemble ENS-1000W-BK ~75A
Ensemble ENS-1200W-BK ~90A

Ooooooo, Black PC board. Memories of some Asus mobo's... O.o

.

[370forlife]

Re: 1000 whats!

Sirtec also did the ripper series. ATNG APE series are probably a bit better of a platform than the sirtec units.

[c_hegge]

Re: 1000 whats!

Ooooooo, Black PC board. Memories of some Asus mobo's...

The PSU in my main PC (a Vantec ION2+ 620W) has a black PCB. It looks similar in some ways to this. Maybe it too was made by ATNG?

[370forlife]

Re: 1000 whats!

Might be a ATNG APL. They are very popular and decent performers.

[everell]

Re: 1000 whats!

I didn't particularly notice that the pc board was black. Sometimes the camera flash makes things look different than they really are, but in this case, the pc board is black.

The main capacitor looks impressive.....big physical size......680 Mfd at 450 volts. A good bug zapper!

So much packed into a small area, it is hard to tell what all is under all that wire and heatsinks. I am wondering what kind of 5vsb it has, and what the switching transistors are. I see two big transformers.....are both main switching transformers......perhaps running in parallel?

toasty: the UL number is E316120, number at far right is D33A74. Not sure what that number is for.

[370forlife]

Re: 1000 whats!

http://www.hardwaresecrets.com/artic...y-Review/871/4

Theres the primary for a APE based 850W. One transformer puts out half the 12v and the 5v. The other puts out the other half of the 12v and the 3.3v.

[Toasty]

Re: 1000 whats!

All the same trafos.

This was a $250 PSU 2 years ago. Somebody put it out for trash, right...?

[Per Hansson]

Re: 1000 whats!

I see the problem
They used a Green with yellow stripe cable for +12v4
Green with yellow stripe is ground

No seriously, it has Teapos, and is very crammed...
Maybe they have lost their capacitance or ESR?
So a light load is fine but when you crank it up near a kilowatt the ripple goes out of spec?

[ratdude747]

Re: 1000 whats!

he sent it my way and it has been recapped...

it runs well... it was giving me 12.54v on all 4 12v rails. all other voltages were well in spec. and that was with no load... the 12v will go down with current draw i'd imagine...

one of the old teapos had severe damage... a uber-thick ground wire had put a 3-4mm deep dent in the top of a 3300uf cap. i suspect it plaid a role of this one hitting the junk bin.

I re-adjusted the zip tie holding the cables in the unit... that way no more crushed caps.

it sure had a heavy ground plane... with a 30w 380c iron @ full heat, i had to use the power from my 45w desoldering iron to recap some of the caps... jeez! it got done thank goodness...

what i found odd/cool is it had 2 bridge rectifiers in it, with their own heatsink... dang... that is some PSU beef if i have seen it...

thanks everell!

[Trinite]

Re: 1000 whats!

Looks kinda light on heatsinks for a 950W unit.

[c_hegge]

Re: 1000 whats!

I've seen worse. It's not as bad as having no fins on them at all.

[PCBONEZ]

Re: 1000 whats!

Looks kinda light on heatsinks for a 950W unit.

They use multiple silicon in parallel.
That reduces heat exponentially.

If you have a diode that throws off X-watts of heat with 5 amps going through it.
-
Then put two in parallel each with 2.5 amps [the same 5 amps split between them] passing through, then the -total- watts for both would be something like 60% of X.

[ratdude747]

Re: 1000 whats!

the heatsinks are bigger than you think. they run nearly full length, and it is a larger than normal length. for 950w, it looks fine to me.

[everell]

Re: 1000 whats!

So glad that you are enjoying it, Ratdude. I have plenty of other power supplies to tinker with, and this one would have ended up in the attic collecting dust.

[PCBONEZ]

Re: 1000 whats!

the heatsinks are bigger than you think. they run nearly full length, and it is a larger than normal length. for 950w, it looks fine to me.

Those heatsinks have deep fins too. - Lots of surface area that way.

[Pyr0Beast]

Re: 1000 whats!

Then put two in parallel each with 2.5 amps [the same 5 amps split between them] passing through, then the -total- watts for both would be something like 60% of X.

Total dissipated watts for both would be 10-20% less. And even that due to lower diode drop voltage because of current.

Diodes are not mosfets.

[ratdude747]

Re: 1000 whats!

thick fins too... so heat flows out a lot better as well.

it seems like a good psu... just has 5 zillion cables:

20+4 ATX
4 pin p4
8pin p4
2x 6 pin PCIe
2x 8 pin PCIe
2x SATA (3 plugs per line, perfect for my rig)
2x molex (3 molex and one berg per line)

but they all have black fishnet stuff on the to avoid tangles and look good... it seems a lot cleaner that way.

if all goes well, I think i may have a unit to last me a good long time (950w will be sufficient for a long time)