Coolmax unraveling

[everell]

Acquired a dead Coolmax model V-600. Powered it up, and sure enough it was dead. The 5VSB was OK, but everything else was dead. Removed the pc board from the metal box, applied power to start troubleshooting, and everything working OK. Hum....................

Doing a visual inspection, I found that one end of the pc board was delaminating. That ought to be a quick fix. Just squirt some super glue between the layers and use a couple of clothes pins to hold it together until dry. But.........I began considering that crappy quality pc board material means that it will probably continue delaminating in other areas. NOT acceptable. So I have met my match and decided that this power supply is simply NOT repairable (unless you want to replace the pc board!). So this one will be used for parts.

[CapLeaker]

Re: Coolmax unraveling

I'd do the same thing.

[Agent24]

Re: Coolmax unraveling

Wow, that's a really crap PCB!

Looks like heat is the cause of the de-lamination. (Well, that, and rubbish quality glue)

[everell]

Re: Coolmax unraveling

Such delamination reminds me of the Democratic Party!

[Dan81]

Re: Coolmax unraveling

Seeing how the Coolmax is crowded with parts,you'd be able to mod a Raidmax with that - especially since AT-2005B Sun Pros have that main transformer without the center tap.

[Pentium4]

Re: Coolmax unraveling

What a bummer! I love those Sun Pro AT-2005B designs. I've probably recapped a dozen of them. Perform well and very silent. Should have some good parts to use!

[Dan81]

Re: Coolmax unraveling

What a bummer! I love those Sun Pro AT-2005B designs. I've probably recapped a dozen of them. Perform well and very silent. Should have some good parts to use!

Considering they usually don't have too tall heatsinks,you can fit them in any generic 120mm PSU case

[everell]

Re: Coolmax unraveling

Considering they usually don't have too tall heatsinks,you can fit them in any generic 120mm PSU case

It does have a nice case and fan. Perhaps I can find another IMicro to fix the pc board and put it in this case. Wouldn't that confuse the next person to work on it!

[Dan81]

Re: Coolmax unraveling

It does have a nice case and fan. Perhaps I can find another IMicro to fix the pc board and put it in this case. Wouldn't that confuse the next person to work on it!

Oh boy,how much I used to do that.

I put a lot of funny stuff in cases. Last one I gave to a friend was a 350W CWT ISO PSU that I crammed (the wires were incredibily thick and stiff) in a 450W Delux (which in turn was a Kissquiet) that was fried. Same goes for two other fried Delux PSUs (a SunPro and the other was an iMicro I think?) except in both cases I used two L&C LC-B450E PSUs. (recapped,of course)I even remember slapping the Premier LC-B450E sticker it had on one .

Other works I did:
Delux (Sun Pro OEM) - Maxpower/KME - I remember I gave this to my friend who needed it to power a security system camera (12v)

Sumvision KY-450ATX - this one was built from both its original casing and another Delux casing.

Linkworld LPK2-30 - Eurocase 250X1

Intex IT-20F1BC-A 430W - JNC LC-B350ATX

and the most recent one? Delux (Sun Pro OEM) - Leadman LP-7700 (w/EI-40 transformer - anybody know where to get some 13009 transistors?)

[everell]

Re: Coolmax unraveling

I even remember slapping the Premier LC-B450E sticker it had on one .

This is the sticker I would use.

[dmill89]

Re: Coolmax unraveling

This is the sticker I would use.

That label comes from this piece of crap, which makes a Sun-Pro or L&C look "top of the line" by comparison:

[Drack]

Re: Coolmax unraveling

That happened to me with an old PSU that came from a Lenovo PC, don't know the manufacturer though.
I did the same, took everything I could use and throw everything else out the window

[dmill89]

Re: Coolmax unraveling

That happened to me with an old PSU that came from a Lenovo PC, don't know the manufacturer though.

Likely Delta, AcBel, or Lite-On for a Lenovo PSU. Assuming it was the OE PSU and not a cheap replacement, it was likely really old and exposed to allot of heat, none of those OEMs is known for using exceptionally cheap PCBs.

[Drack]

Re: Coolmax unraveling

Yeah, the parts where quality ones and everything was good but because of the bad PCB it would not work all the time or just never after a while lol. The only disappointment was the 20a fast recovery diode but I think it can be useful some day so I kept it,
the fan was stuck that's why it died, it was really dusty inside that little case

[PeteS in CA]

Re: Coolmax unraveling

... So this one will be used for parts.

The "Y-caps" on that look like they could be general purpose rather than safety agency approved parts. If they are general purpose parts, don't use them as Y-caps.

[Drack]

Re: Coolmax unraveling

That label comes from this piece of crap, which makes a Sun-Pro or L&C look "top of the line" by comparison:

Ohh my god, it looks like a child cut that PCB with plastic
Scissors

[dmill89]

Re: Coolmax unraveling

Ohh my god, it looks like a child cut that PCB with plastic
Scissors

Yah, that "free with case" OKIA "420W" (I think they added a 0, more like 42W) is by far the worst PSU I've ever personally owned (and by "owned", I mean I immediately took it out of the case it came with and replaced it with something better, I wouldn't even think of powering a PC with that POS).

[Drack]

Re: Coolmax unraveling

The sad part is that 95% of the PSUs people uses are like that (including my p4 PC)

[Agent24]

Re: Coolmax unraveling

Ohh my god, it looks like a child cut that PCB with plastic
Scissors

[Dan81]

Re: Coolmax unraveling

Yah, that "free with case" OKIA "420W" (I think they added a 0, more like 42W) is by far the worst PSU I've ever personally owned (and by "owned", I mean I immediately took it out of the case it came with and replaced it with something better, I wouldn't even think of powering a PC with that POS).

OKIA is good for exploding.

Seriously , I've seen Maxpowers better than that Okia with the same size of PCB. Is that OKIA made by KME? If so,shame on them.