Xsonic ZS-450W - If loose heatsink screws aren't bad enough

[c_hegge]

As some of you may remember, CWT has a bit of a reputation with Oklahoma Wolf for loose heat sink screws. If that wasn't bad enough, I blew up an Xsonic SZ-450W PSU on my load tester this afternoon. It was rated for 450W, and it was under 350W load when the switchers exploded. After un-soldering the (rather thin) heat sink, I found that the switchers were really easy to wiggle around and I un-did the screws with nothing but my fingers, even though only 1 of the washers was melted (the one for the middle switcher), they were that loose. It was somewhat better on the secondary heat sink, but I could still wiggle rectifiers around. The PSU actually looks kind of beefy, but I decided not to fix it, since I have lots of other better ones like antecs to spend my time on.

[b700029]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

CWT? Those heatsinks look like PowMax/Leadman to me

[c_hegge]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

I know it's not a CWT. I was just saying that this is a lot worse than their loose heatsink screws. I'm not actually sure who the OEM is. It does kinda look like a leadman, but there was no LP-xxxx model number on the PCB.

[kc8adu]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

+1
looks like the typical P.O.S. to me.

CWT? Those heatsinks look like PowMax/Leadman to me

[goodpsusearch]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

The same one who made this: https://www.badcaps.net/forum/showthread.php?t=10076

[c_hegge]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

The same one who made this: https://www.badcaps.net/forum/showthread.php?t=10076

Now that you mention it, I do see some similarities, although we never figured out who built the Konig either.

[momaka]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

What were the primary transistors, 13007's? If so, I wouldn't be surprised it blew at 350W.

[c_hegge]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

Nope, China ATE D304X

[UraBahn]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

Why do I keep thinking Allied / L&C when I see this?

Just my two cents.

[c_hegge]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

Looks nothing like a deer to me

[shovenose]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

Why do I keep thinking Allied / L&C when I see this?

Just my two cents.

I think the heatsinks.

[c_hegge]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

The heat sinks don't even look deer. They look leadman

[b700029]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

Old Deer/L&C:
http://farm1.static.flickr.com/39/79...bd67fef444.jpg
New Deer/L&C:
http://static.flickr.com/39/79711182_55eb38f55b.jpg

[370forlife]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

No such thing as "new" deer. Deer is Solytech now. Deer Comptuer is just the name of the factory where Solytech's power supplies are made, though they still manufacture some old Deer designs.

These are the "new" solytech's:

https://www.badcaps.net/forum/showth...light=solytech

and:

https://www.badcaps.net/forum/showth...light=solytech

This is an example of one of the better deer designs solytech still sells:

https://www.badcaps.net/forum/showth...light=solytech

and an old deer design, still not that bad:

https://www.badcaps.net/forum/showth...light=solytech

[momaka]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

Nope, China ATE D304X

That's a bit better than 13007's, but not by much.
What probably killed the PSU was the loose screws like you mentioned, though.

Looks nothing like a deer to me

Agreed.
I have a GenMax I found recently that looks similar to this. Except the heatsinks are even thinner - the same as in the very very cheap Leadman/Sunpros.

and an old deer design, still not that bad:
https://www.badcaps.net/forum/showth...light=solytech

I have an old 250W one like that powering my PIII computer at my grandmother's house. It's identical to yours, just with lower-rated 12v rectifier and no P4 connector. I actually like it quite a lot. Very simple PSU. Another reason I picked it for that computer is because it has a two-pole ON/OFF switch, so it can work in Europe with those unpolarized Schuko plugs.

[c_hegge]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

I had a so-called "550W" sun pro (similar to the ones corsair were testing), which also had D304X switchers.

https://www.youtube.com/watch?v=GTqBwUy-C4Y - (320W load)

[RJARRRPCGP]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

I know it's not a CWT. I was just saying that this is a lot worse than their loose heatsink screws. I'm not actually sure who the OEM is. It does kinda look like a leadman, but there was no LP-xxxx model number on the PCB.

The LP-6100 I had was a better one, before Leadman went for the worst.

But, even that one worried me, it was squealing and the PC would black out with a Radeon 7000 when I accessed the CD drive but strangely was fine with a GeForce 2 MX.

The Radeon 7000 I think uses about the same wattage. WTF?

[shovenose]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

I used an Xtreme Power "400W" psu in my Pentium 4/Geforece 6800 Ultra, it was an LP-6100D (this was before I knew any better) it was the quietest PSU I've ever used!

[b700029]

Re: Xsonic ZS-450W - If loose heatsink screws aren't bad enough

LP-6100E from 8 years ago: http://www.modthebox.com/reviews/rai...e/raidmax9.jpg
LP-6100D http://farm1.static.flickr.com/37/82...5fb37001_o.jpg

LP-8867 (real rating 230W) http://img519.*************/img519/8433/img0090f.jpg
LP-9960 http://www.fatwallet.com/static/atta...idedemon_1.jpg

In my opinion the 6100s weren't too bad, but the 88xx and 99xx were when they really went downhill.