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Old 02-06-2017, 05:20 PM   #1281
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
Originally Posted by jazzie366 View Post
Where did you find this!? That's a KenTek PSU which the manufacturer of is currently unknown, they should be found and shamed and also made liable for all the PCs that have been destroyed by them.
That PSU looks like a laptop PSU on steroids! LOL!
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Old 03-16-2017, 07:40 AM   #1282
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Default Re: the gutless, bloated, and fried power supply hall of shame

Found this little beauty in a Compaq Presario A64.

Must have been a thoughtless replacement at some point for the original!

Fan was very stiff so I guess it ran hot and somewhat overloaded for some time in order to cook more or less every cap in the unit!
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Old 03-16-2017, 10:17 AM   #1283
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
Originally Posted by Bungz View Post
Found this little beauty in a Compaq Presario A64.

Must have been a thoughtless replacement at some point for the original!

Fan was very stiff so I guess it ran hot and somewhat overloaded for some time in order to cook more or less every cap in the unit!
That might actually be worth a fix.

What did they smoke to label a ERL35 transformer EI-33ASG?
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Old 03-16-2017, 03:42 PM   #1284
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Default Re: the gutless, bloated, and fried power supply hall of shame

I think I saw a March, 2001 date code on one of the caps. There's a good chance to original PSU was from Delta, and if it lasted for 15 years, it did pretty good. At any rate, while I wouldn't use that thing for the full rated 300W when brand new, restored it would probably be good for 200W-250W. The two potential limiting factors would be the 2A +5VSB and, more importantly, the 10A rating for the +12V output.
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Old 03-16-2017, 04:13 PM   #1285
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Default Re: the gutless, bloated, and fried power supply hall of shame

The PSU predates the Compaq by some years without a doubt.

I figured the person I acquired the machine off did a quick fix and swapped the PSU out for one from a older machine.

Usually I am up for repairing such things but the weak 12V rail really means its rather useless for me in this system.

Machine however is now sporting a 300W FSP unit and it working perefctly
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Old 03-16-2017, 11:00 PM   #1286
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
Originally Posted by Bungz View Post
The PSU predates the Compaq by some years without a doubt.

I figured the person I acquired the machine off did a quick fix and swapped the PSU out for one from a older machine.

Usually I am up for repairing such things but the weak 12V rail really means its rather useless for me in this system.

Machine however is now sporting a 300W FSP unit and it working perefctly
As far as my experience goes, I used recapped Deers similar to the Mercury above (except the diodes-on-bracket were replaced with actual rectifiers) to power Northwood based PCs. (in fact,one of the PCs I gave runs a P4 2.8 Northwood with a FX5200,a MSI 845E Max mobo and a 120GB WDC HDD)
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Old 03-20-2017, 05:40 AM   #1287
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
Originally Posted by Bungz
Found this little beauty in a Compaq Presario A64.

Must have been a thoughtless replacement at some point for the original!

Fan was very stiff so I guess it ran hot and somewhat overloaded for some time in order to cook more or less every cap in the unit!
Oh Deer!

It's one of their "2003"/"2005" chip-of-the-year BTX designs (BTX for Deer/L&C typically signifies the primary is located on the same side as the receptacle plug and the secondary is same side as the fan... not the other way around like with other "normal" PSUs).

That said, with a better rectifier on the 12V rail and bigger output caps, this thing could probably provide up to 14 Amps on the 12V rail, which should be enough to power a Pentium 4 / Core 2 Duo / low power Core i3 or i5 system with on-board or low-power GPU and single HDD. I'm not sure if it's worth the hassle fixing it, though.

I would do it for fun, but I don't expect anyone else to be like me.
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Old 03-23-2017, 02:54 PM   #1288
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Default Re: the gutless, bloated, and fried power supply hall of shame

The worst trash I could find, this PSU i was installed on a pc, the owner of the pc complained that it did not start all the time, and it squeaked, and it did not work stable the pc.

Subject: 3G0 "450W"

primary
ate 7n60
c5027s
2 cap jay'long 200v 470 microfarads
ic ka3842
diode bridge diferent size LOL
x2 sep 1n5
x2 sep rl2


secondary
diode lt 338
switch st stps30 45cw 30A (The only thing of decent brand xD) but the transformer that accompanies ... this would cause havoc. does not meet what promises in its label.
apd sbr1040ct
4x chengx 10v 2200 microfarads
2x chengx 16v 470 microfarads for 5vsb
2x chengx 16v 470 microfarads

At least it has one good thing, it has 2 thermistors

The transformer is super tiny!
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Last edited by kevin!; 03-23-2017 at 03:24 PM..
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Old 03-23-2017, 03:26 PM   #1289
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Default Re: the gutless, bloated, and fried power supply hall of shame

It's sad how that can be passed off as a 450W PSU. [I'm guessing 100W maybe.]

I like the brand of the input capacitors. [jay'long]
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Old 03-23-2017, 03:35 PM   #1290
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Default Re: the gutless, bloated, and fried power supply hall of shame

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Originally Posted by ruky con View Post
It's sad how that can be passed off as a 450W PSU. [I'm guessing 100W maybe.]

I like the brand of the input capacitors. [jay'long]
It will surely be 100W, As it requires power, it bursts xD
What is not as it has not yet exploded, nor the capacitors "jay long" xD.
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Old 03-23-2017, 04:27 PM   #1291
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Default Re: the gutless, bloated, and fried power supply hall of shame

What are you planing on doing to that PSU? Scrap it? Burn it? Throw it off an cliff?
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Old 03-23-2017, 04:32 PM   #1292
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Default Re: the gutless, bloated, and fried power supply hall of shame

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Originally Posted by ruky con View Post
What are you planing on doing to that PSU? Scrap it? Burn it? Throw it off an cliff?
I have thought, is to charge to burst, but for lack of machinery I can not do it .
I'll think of something like busting her xD.
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Old 03-23-2017, 04:41 PM   #1293
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Default Re: the gutless, bloated, and fried power supply hall of shame

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I have thought, is to charge to burst, but for lack of machinery I can not do it .
I'll think of something like busting her xD.
I have a crap PSU which i'm thinking of putting 2.1KV into the input via an MOT. [Microwave oven transformer.]
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Old 03-23-2017, 11:14 PM   #1294
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Default Re: the gutless, bloated, and fried power supply hall of shame

woe... kilovolts... better be careful when u do that! u get zapped, its your funeral!
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Old 03-24-2017, 12:02 AM   #1295
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Default Re: the gutless, bloated, and fried power supply hall of shame

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woe... kilovolts... better be careful when u do that! u get zapped, its your funeral!
Yes, i know...
I've done this more then once.
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Old 03-24-2017, 02:20 PM   #1296
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
switch st stps30 45cw 30A (The only thing of decent brand xD)
Actually, unless it's counterfeit, that KA3842 is either Samsung or Fairchild (Fairchild bought some of Samsung's linear IC products around that time).

Those input caps (ignoring the non-brand brand) and the size of those heatsinks would put the realistic output power at around 250W maximum.
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Old 03-24-2017, 02:33 PM   #1297
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
Originally Posted by ruky con View Post
I have a crap PSU which i'm thinking of putting 2.1KV into the input via an MOT. [Microwave oven transformer.]
I dare not touch a microwave transformer xD. What I want is petarla the 450w indicated, I will put several H4 light bulbs, to see if I can overload it.

Quote:
Originally Posted by PeteS in CA View Post
Actually, unless it's counterfeit, that KA3842 is either Samsung or Fairchild (Fairchild bought some of Samsung's linear IC products around that time).

Those input caps (ignoring the non-brand brand) and the size of those heatsinks would put the realistic output power at around 250W maximum.
I also think it, I think it is false.
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Old 03-24-2017, 02:54 PM   #1298
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Default Re: the gutless, bloated, and fried power supply hall of shame

That transformer is just... Wow!

PeteS in CA: Good guess, here is a user that tested it.
The primary exploded at 277w
http://www.jonnyguru.com/forums/showthread.php?t=6714

EDIT: Here it is with a 250w rating even
http://www.powsun.itxpower.net/pcpower_8867.htm
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Last edited by Per Hansson; 03-24-2017 at 02:58 PM..
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Old 03-24-2017, 03:34 PM   #1299
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Default Re: the gutless, bloated, and fried power supply hall of shame

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Originally Posted by Per Hansson View Post
That transformer is just... Wow!

PeteS in CA: Good guess, here is a user that tested it.
The primary exploded at 277w
http://www.jonnyguru.com/forums/showthread.php?t=6714

EDIT: Here it is with a 250w rating even
http://www.powsun.itxpower.net/pcpower_8867.htm
Thanks for this information, make it clear that it is the worst psu I have ever seen.
I even put it at less level than deer xD.

If the psu of the forum of jonnyguru exploded with 277, I do not want to imagine my PSU, since with a pentium 4 of 65w of consume gave error to start, I do not want to imagine asking for load of 277 watts, there it explodes in my face.
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Old 03-24-2017, 10:07 PM   #1300
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Default Re: the gutless, bloated, and fried power supply hall of shame

In most of the Americas, you would be lucky to get 150 W out of it...
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