Powerlink LPK2-30 400W - Linkworld PSU

[Dan81]

Got a Linkworld PSU to work with.

It's a LPK2-30 (which I suppose is 300W) which was rated at 400W.

What it provides:

-18AWG wire
-Ruilian Science fan - replaced with some noname fan from a 7team (Seventeam) AT PSU I threw away
-P4 plug
-6 pin AUX
-4x HDD plugs
-2x floppy plugs
-20pin ATX

Insides look like this (Pentium4's pic since my camera's batteries are dead atm)



The only differences between my Powerlink and Pentium4's Linkworld are that mine has LOTS of PI coils (small,big...they're everywhere!),primaries are Fuhjyyu LP (his are MK).

Also,anybody know what are the blank spots near the bridge rectifier?

[everell]

Re: Powerlink LPK2-30 400W - Linkworld PSU

Looks a lot like the IMicro and Coolmax V-500 I recently posted. Fun to play with, puts on a great show when they blow up, but would not want to trust them powering a computer over extended time. Old Chinese proverb says you get what you pay for......if you are lucky!

[Dan81]

Re: Powerlink LPK2-30 400W - Linkworld PSU

Looks a lot like the IMicro and Coolmax V-500 I recently posted. Fun to play with, puts on a great show when they blow up, but would not want to trust them powering a computer over extended time. Old Chinese proverb says you get what you pay for......if you are lucky!

Recapped it and it works flawlessly. I was amazed by the voltages:

3.3V = 3.36V
5V = 4.94V
5VSB = 4.96V
12V = 11.91V
-5V (it has a -5 rail) = -4.74V
-12V = -11.62V

Ironically,the only one coming close to this is my Premier LC-C400ATX (Deer) I have.

Also,it's powering a old system:

MSI K7N2 Delta-L
512MB RAM
20GB Maxtor 6E020L0 - brand new
LiteOn DVD-ROM
Athlon XP 1900+ 1.2GHz
FX5200+ 128MB
C-Media 8738 PCI Audio card (onboard ports are dead)
RTL8139D NIC
MSI D-Bracket
Floppy Drive

For the recap,I used mixed caps until I can get some japanese caps,as I think I can get something useful out of it.

Until then,the caps I used were:

3x Ltec - from a dead Delta
2x OST RLX - from a dead S754 MB,one is on the 5VSB and the other on one of the output rails
1x Sanyo WG - from a dead LGA775 MB

Also,the fan was wired to 12v from the factory

[c_hegge]

Re: Powerlink LPK2-30 400W - Linkworld PSU

3x Ltec - from a dead Delta

Here I was thinking Deltas were immune to failure. You just burst my bubbe

[Th3_uN1Qu3]

Re: Powerlink LPK2-30 400W - Linkworld PSU

Deltas die too. Very rarely though - but when they do, they are usually next to impossible to fix. They don't die from bad caps tho.

[c_hegge]

Re: Powerlink LPK2-30 400W - Linkworld PSU

^
I know. I was just joking. They are my favourite OEM, though.

[Dan81]

Re: Powerlink LPK2-30 400W - Linkworld PSU

Deltas die too. Very rarely though - but when they do, they are usually next to impossible to fix. They don't die from bad caps tho.

They make quality though,and bad caps aren't a concern on Deltas. I have a PFC from that dead Delta that is heavy enough to smash a CRT

My favourite PSUs are FSP tho.

Back to the thread's PSU,some Linkworlds can be good if recapped and modded. However I'd advise avoiding the proprietary PWM Linkworlds. I've seen such Linkworlds and they're utter crap. SG6105D ones are good though.
Also worth mentioning,I've seen Linkworlds give solid voltages (and ironically "high end,beefy" Deers too). EI-33 transformer though.

Funny thing,the PSU was built with 2 common mode chokes in mind! What does that mean?

Another question would be if Bestec or Delta transformers work on those cheap PSUs. If they do,how much watts would you be able to pull from it?

[goodpsusearch]

Re: Powerlink LPK2-30 400W - Linkworld PSU

However I'd advise avoiding the proprietary PWM Linkworlds. I've seen such Linkworlds and they're utter crap.

Why?

[everell]

Re: Powerlink LPK2-30 400W - Linkworld PSU

Deltas die too. Very rarely though - but when they do, they are usually next to impossible to fix. They don't die from bad caps tho.

Here is a Delta that died in a flame of glory!

[stj]

Re: Powerlink LPK2-30 400W - Linkworld PSU

that went out viking style!

you should wash the soot off so we can see what actually happened.

[c_hegge]

Re: Powerlink LPK2-30 400W - Linkworld PSU

^
see https://www.badcaps.net/forum/showthread.php?t=9660

[ben7]

Re: Powerlink LPK2-30 400W - Linkworld PSU

Here is a Delta that died in a flame of glory!

And you even managed to fix it ... you are the master of PSU repair!