Yet another Deer....wait,IT WORKS?!

**momaka** · 05-11-2015, 09:36 AM

Re: Yet another Deer....wait,IT WORKS?!

Why you always tease us by not posting pictures?

**ben7** · 05-11-2015, 10:15 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by momaka

Why you always tease us by not posting pictures?

+1

You don't have any proof that you actually did find another Deer xD
And apparently a good one, at that. (? ... unsure lol)

**SteveNielsen** · 05-11-2015, 10:27 AM

Re: Yet another Deer....wait,IT WORKS?!

That's good but it would be more interesting if there were sparks and flying parts.

**Dan81** · 05-11-2015, 12:41 PM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by ben7

+1

You don't have any proof that you actually did find another Deer xD
And apparently a good one, at that. (? ... unsure lol)

I do have proof,but I have been busy with other electronics to fix (some headphones,mobo mentioned below and a ATX case)

Funny thing is I used it to bench test a Foxconn 865A01-PE-6LS w/ a 2.66GHz Celeron D Preshott. Note that I did this after I removed the 2 diodes on a bracket and replaced them with a 16A part (so the label won't lie on 12v

),added PI coils and fixed 5vSB that had a bulged cap.

Will take some pictures tomorrow of both the PSU and the mobo. Apparently,the mobo comes from a Preshott system that must have been parted out,since the 12V P4 connector on the mobo is darkened on the yellow wires. There were about 5 caps missing. 3x 1200uf 16v near the VRMs (which get INSANELY hot when used with a 2.66GHz Celeron D...where did I put my ol' Northwood P4 1.8A?) and 2x 3300uf 6.3v near the RAM slots.

As for the previous LC-8460BTX I've posted here,not worth pictures,it's as dead as a rock. Oh well, at least it has a 30A part for the 5V that I can take.

**Dan81** · 05-12-2015, 07:21 AM

Re: Yet another Deer....wait,IT WORKS?!

Okay,here are the pics of the psu.

PSU:

Attached Files

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**ben7** · 05-12-2015, 07:28 AM

Re: Yet another Deer....wait,IT WORKS?!

Eh, doesn't look like it's worth modding. Unless you just want it for a low power computer.

To get more power you might need to find a bigger transformer with the right pinouts, winding phasining, turns ratio, etc.... that's difficult.

**Dan81** · 05-12-2015, 08:23 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by ben7

Eh, doesn't look like it's worth modding. Unless you just want it for a low power computer.

To get more power you might need to find a bigger transformer with the right pinouts, winding phasining, turns ratio, etc.... that's difficult.

Given good parts (sans a bigger transformers,as I've seen good EI-33 PSUs work with P4 without problems) it may work.

I'll try fiddling with 12v by installing a SBL3040PT (along with the same on 5 and 3.3v) and run a Preshott with it for fun. If it works fine,then it's good to use. If not,then a 20A part may do.

Also worth mentioning that if this idea works I think it might help equalizing the 5,3.3 and 12v in terms of voltage. (though not sure atm)

**momaka** · 05-12-2015, 09:45 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by Dan81

As for the previous LC-8460BTX I've posted here,not worth pictures,it's as dead as a rock.

But that's one of the things we love to see here on BCN

- cheap, terrible PSUs so that we can poke fun at them, thus informing anyone that reads BNC why they are bad.

Originally posted by Dan81

I'll try fiddling with 12v by installing a SBL3040PT (along with the same on 5 and 3.3v) and run a Preshott with it for fun.

DON'T!
You will likely short out that rectifier. Or at best, the PSU will not work.

Either way, it is a bad idea, because that rectifier will actually see, at minimum 35V reverse voltage. That's because in half-bridge PSUs, you will have 2x the voltage of each output rail + some headroom voltage.

Therefore, you will want at least a 60V-rated rectifier for the 12V rail (but preferably 100V). On STF topology PSUs, however, you can use a 40V or 45V part on the 12V rail and it likely won't cause a problem. I know Bestec, for example, often uses a single 20A 45V schottky rectifier for the 12V rail.

**Dan81** · 05-12-2015, 10:02 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by momaka

But that's one of the things we love to see here on BCN

- cheap, terrible PSUs so that we can poke fun at them, thus informing anyone that reads BNC why they are bad.

That one didn't spark or anything either.

Originally posted by momaka

DON'T!
You will likely short out that rectifier. Or at best, the PSU will not work.

Deer uses 40/45V parts for anything on the secondary...

**momaka** · 05-12-2015, 10:26 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by Dan81

Deer uses 40/45V parts for anything on the secondary...

Not the 12V rail. At least I have never seen it. If this is something they have started doing lately, then they deserve a

. It's simply a piss-poor decision to put 40V or 45V rectifiers on the 12V output rail of a half-bridge PSU. You will be running them really close to their rated reverse blocking voltage. Just one spike on the input (and considering how most cheap L&Cs don't even have a line filter), that spike will go straight through to secondary. And then you wonder why you get so many of them dead.

**ben7** · 05-12-2015, 10:41 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by momaka

DON'T!
You will likely short out that rectifier. Or at best, the PSU will not work.

Hm, yeah, I too noticed that it was a 40V rated part. I didn't say anything though

Originally posted by Dan81

Deer uses 40/45V parts for anything on the secondary...

Heck, I wouldn't be surprised, based on the quality of the rest of the PSU.

**Dan81** · 05-12-2015, 11:04 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by momaka

Not the 12V rail. At least I have never seen it. If this is something they have started doing lately, then they deserve a

. It's simply a piss-poor decision to put 40V or 45V rectifiers on the 12V output rail of a half-bridge PSU. You will be running them really close to their rated reverse blocking voltage. Just one spike on the input (and considering how most cheap L&Cs don't even have a line filter), that spike will go straight through to secondary. And then you wonder why you get so many of them dead.

Oh well. Then will a S20C60C work for the 12v? It's 60v.

Gonna complete the line filter soon BTW.

**goodpsusearch** · 05-12-2015, 11:06 AM

Re: Yet another Deer....wait,IT WORKS?!

Probably yes

**momaka** · 05-12-2015, 11:11 AM

Re: Yet another Deer....wait,IT WORKS?!

Yes.
Save that 30A for the 12V rail of a STF PSU. See post #9 again.

**Behemot** · 05-12-2015, 11:15 AM

Re: Yet another Deer....wait,IT WORKS?!

That's true Rubycon in there?

**Dan81** · 05-12-2015, 11:36 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by Behemot

That's true Rubycon in there?

Yes. It's from a motherboard,so genuine 100%.

**Behemot** · 05-12-2015, 01:01 PM

Re: Yet another Deer....wait,IT WORKS?!

So not original? I wondered since where they started using Rubycons

**ben7** · 05-13-2015, 07:38 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by Behemot

So not original? I wondered since where they started using Rubycons

There's also an NCC cap in there, I don't ever recall them using those either xD

**Dan81** · 05-13-2015, 10:47 AM

Re: Yet another Deer....wait,IT WORKS?!

Originally posted by ben7

There's also an NCC cap in there, I don't ever recall them using those either xD

Now it even has an complete line filtering...

Yet another Deer....wait,IT WORKS?!

Yet another Deer....wait,IT WORKS?!

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