caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

[jimho]

I have a few Dell GX260 and GX270 PSU's that are dead and I am wanting to replace the capacitors. Both models Hipro hp-2507fwp or fp2507f3cp have the same value capacitors. I have read on other posts that all the large ARCON caps should be replaced. I made a diagram / picture in hopes that someone could tell me if I am on the right track or if I am swapping to many or to little caps. the hp-p2507fwp psu has a bulging 3300, 4700, and 1000uf 16v and the HP-p2507f3cp only has a visible 1000uf 10v c302 bulging

here is the total list
470uf 25v ARCON QTY-1
4700uf 10v ARCON QTY-1
3300uf 10v ARCON QTY-1
3300uf 16v ARCON QTY-2
1000uf 16v ARCON QTY-1
2200uf 10v ARCON QTY-3
1000uf 10v ARCON QTY-1 C302
100uf 50v ARCON QTY-1 C202





Thanks

[etnietering]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Yeah looks like you're on the right track. Looks like there's another one you might want to replace too: it's by the 3 2200uF@10v caps, right next to the blue coil and the purple wire. It's littler, but it looks like it's part of the +5vsb filter, and is important. Also, when looking for replacements, if you know the voltage rail that each cap is on, you can probably find caps that will work better. Like there's no need for a 10v cap on the 3.3v rail when a 6.3v cap will work fine. The 25v cap is probably on the -12v rail, so you can use a 16v cap there.
Other people here have more experience with the little caps, and can offer more guidance than me.

[c_hegge]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

I had a similar unit (Only, it was 200w). It had teapo caps in it. None were bulged/leaking and the PSU seemed fine, but I replaced them pre-emptivley with Panny FC and a couple of FJ I salvaged from a motherboard.

[jimho]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Thanks that cap by the purple wire is a 470uf 16v i will include it also I had to pull it to read it.

[jimho]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Success on the first PSU I swapped all but the 50v caps with salvaged caps and got the 50v at a local store for a buck and it looks good so far. i went with 6.3v on some of the 10s and 16v on one of the 25v

[jimho]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Well the second one was a bit of a challenge. After testing the fuse and swapping all the caps it would not power up then I started re-swapping all the caps but I noticed it would power up when I bent the bd slightly so I shut the lights out and looked for a spark. I found that the fuse holder had bent open slightly causing a bad connection. I bent it back and all is well with this one. Guess its on to the next one.

[Noman]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Also have a Dell DLP2507FWP2 (on housing top)/HP-P2507FWP (on housing frame) PSU w/bad caps-- very much as in jimho's photo above (plenty of specific photos available for posting, though, should anyone for any reason be interested)-- causing typical amber-light problems in an Optiplex GX270: once posted, works perfectly for as long as machine's left on, but anybody's guess how much mucking it'll take to re-post once machine's powered down (NB: Dell recapped the MB back when, and all there still looks fine, so not likely to be the problem source, or even a contributing factor [again, plenty of photos available, if thought to be helpful here]).

3 related questions, for anyone who cares to weigh in:
1) Save for the bad Arcon caps, this HiPro's supposed to be a fairly well-built, top-notch PSU, so probably worth having recapped, yes/no?
2) Given that my own soldering/desoldering skills have proven dodgy enough in the past, were I to opt to have this done, I'd prefer to send it in to Badcaps.net rather than attempt to teach myself to do the job (particularly as it's for the wife's computer); that said, I can't seem to locate anywhere on the site dealing with PSU (as opposed to MB) recap service. Can anyone point me in the right direction re. same?
3) For getting this up and running in the interim, has anyone yet discovered a sufficiently high-quality PSU (perhaps one even slightly >250W, to provide a bit of reserve), that'll simply fit the GX270 casing w/o the need for cutting/modification (the wife's machine, remember...), and that isn't overpriced just because the manufacturer/distributor knows it's got some Dell owners by the short ones in this regard?

Cheers all, and many thanks in advance!

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

HP-P2507FWP is a standard ATX PSU. - Any standard ATX PSU will fit.

HiPro is good brand save for poor cap choices but don't confuse with similar sounding names, those are crap.
HiPro is mostly an OEM supplier and some are used in low-mid range servers.

Soldering PSU PCB is easier than mobo PCB.
I don't think BCN does PSU's.

For a quick cheap fix scare up an Antec Earthwatts 380w, 430w, or 500w on eBay.
They have a few scarry caps but thus far it hasn't been a problem because they are well cooled.
[Also fairly quiet and 80+ Certified.]
Don't use other Antecs. Either too expensive for what they are or compete crap.

.

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

i went with 6.3v on some of the 10s and 16v on one of the 25v

This can destroy the PSU.

You can switch 6.3v and 10v back and forth because they are on either 5v or 3.3v circuits but you cannot apply that rule to higher voltage caps because they are most likely on higher voltage circuits.
.

[Noman]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Many thanks, [fellow] "GOF" for the prompt reply.

HP-P2507FWP is a standard ATX PSU.

Yep, but...

- Any standard ATX PSU will fit.

Nope, not really (at least not w/o the cage-cutting I was specifically looking to avoid). The HP-P2507FWP, at least in its Dell OEM configuration for the Optiplex series ("Dell DLP2507FWP2"), has no on/off rocker switch and locates its power-cord receptacle in the upper left (as viewed from the rear), directly underneath which is a small, red international voltage slider-- all of which corresponds precisely with cutouts in the Optiplex back panel (see 1st image I hope to have properly attached hereto).


In contradistinction, the Antec Earthwatts series PSUs-- like most standard and replacement ATX PSUs-- includes a rocker-switch in the upper left and therefore positions the power-cord receptacle in the lower left, while-- unimportantly here-- lacking any external voltage slider (see 2nd image I likewise hope to have properly managed to attach).


There are any number of Dell/Optiplex-specific replacement PSUs out there addressing these particular configuration issues, but as a class seem to fall pretty much into one of two categories: "cheap & sketchy" or "solid but dear". An example, perhaps, of this latter would be the PCP&C entry available at this site, inter alia.

HiPro is good brand save for poor cap choices but don't confuse with similar sounding names, those are crap.
HiPro is mostly an OEM supplier and some are used in low-mid range servers.

Yep, yep, & yep. For the record, here's a photo (3rd & final image-- again, fingers crossed) of the HP-P2507FWP/Dell DLP2507FWP2 at issue here (multiple other views/focal lengths available, should anyone really wish to stare at still more bad Arcons...):

Soldering PSU PCB is easier than mobo PCB.
I don't think BCN does PSU's.

Shame that last, if true, but thanks for the former, which may yet encourage me to look into a PSU cap set and (very) detailed instructions for their use/abuse at my derelict soldering bench. Any additional info on same'd be greatly appreciated, though I'd only undertake such a project AFTER getting some sort of functioning replacement into the wife's Dell-- and then only for the satisfaction of having a backup lying around in the event of yet another power failure in her GX270, or in mine, her machine's (at least thus far) "good twin" (yes, that knocking-wood sound you're hearing is emanating from my end of the connection...)

For a quick cheap fix scare up an Antec Earthwatts 380w, 430w, or 500w on eBay.
They have a few scarry caps but thus far it hasn't been a problem because they are well cooled.
[Also fairly quiet and 80+ Certified.]
Don't use other Antecs. Either too expensive for what they are or compete crap.

As above. Any further thoughts, however, gladly entertained and greatly appreciated.

Cheers (and thanks) again!

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Your images ain't workin'.

Most good PSU's you'll find today [Earthwatts included] are APFC and won't have a voltage slider.

The 650w Earthwatt on the desk here has the switch on the bottom left and the AC is just slightly above it and below the middle.

The FSP FX700-GLN has both switch and AC side-by-side at left center.

The [some model, it's installed] Delta 400w is like the FSP.

I'm thinkin' what you're thinkin' is standard isn't so.

.

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Pics work now

I say make the case standard so you can use what you want.

The only hassle I see is the upper right screw but you could skip that one.
Three is enough.

[Noman]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Your images ain't workin'.
.

Yep. For some reason-- at least in the original version of my post (#10)-- the 1st two images didn't "take" at all, and the 3rd didn't display as a thumbnail. Wasn't able to figure out a way to get rid of the entire errant post, and ran up against an apparent time limit in attempting to edit same by resubmitting and re-embedding the referenced images-- so simply resubmitted the whole. That properly posted to the thread as message #11 (see which, instead), one above your attempted response to my photo-deficient prior effort. I'd be very happy to deep-six the original post (#10), if you or anyone can point the way to doing so.

[Noman]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Pics work now

I say make the case standard...

Meaning?

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Meaning?

Meaning use a jig saw and make the hole standard.

[Behemot]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

This can destroy the PSU.

You can switch 6.3v and 10v back and forth because they are on either 5v or 3.3v circuits but you cannot apply that rule to higher voltage caps because they are most likely on higher voltage circuits.
.

Only higher voltage there is 12 V for which 16V caps are just fine. There could be higher voltage on some small caps in operating circuits but I've never really encountered such thing in PC PSU's (how there could be more on the sensing lines when there's maximum 12 V on output, you know). Higher voltages are used just because 1-10 uF caps for like a 16 V or less usually don't exist at all. At least that's what I've discovered through time and I'd dare to take it as a rule unless I'll find unit which disproves it

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Only higher voltage there is 12 V for which 16V caps are just fine.

The only place it is safe to assume that is the output filters.

Anywhere else you need to check the voltage because there are WAY too many PSU designs to assume they are all the same elsewhere.

All it would take is some designer placing a cap in an odd place on the PCB to ruin your whole day.

It's just common sense to check if lowering the cap's voltage.

.

[Behemot]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

Of course it's good to check, but as I said, I checked it every time in the past and never encountered PSU where was higher voltage even on the high-voltage caps. For that reason I don't check anymore on secondary and on primary side are usually 1 uF or 2,2 uF/50 V which I replace by 100 V Chemi-Cons sicne they don't have lower voltage caps in that store So no need to check I guess

Also if he actually replaced the 470uf 25v ARCON, it's just fine as it's most likely +5 V standby acording to the picture. I replace these caps by 6,3 V/3300 uF

[Noman]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

I say make the case standard so you can use what you want.

Meaning?

Meaning use a jig saw and make the hole standard.

A brilliant answer, I'm sure. To some question. Just not the one posed.

OP (#7):

3) ... has anyone yet discovered a sufficiently high-quality PSU... that'll simply fit the GX270 casing w/o the need for cutting/modification ...?

[emphasis added]


[PSSST!-- quick-like now, while the GOF's still busy padding off to check his days-of-the-week pill organizer, trying to sort how he got so far behind on his meds-- can anyone offer an answer actually addressing the above query? Many TIA!]

[PCBONEZ]

Re: caps on Dell 250 watt power supply Hipro hp-p2507fwp or HP-p2507f3cp

A brilliant answer, I'm sure. To some question. Just not the one posed.

In that case,,,
No - No cheap ones. - Go buy the expensive replacement.