Re: The Hall of Shame - Badcaps Photo Montage
JEE capacitor
They were found on many generic 300-350W PSU.
JEE capacitor
They were found on many generic 300-350W PSU.
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days are so short when you actually do something.. -
Re: The Hall of Shame - Badcaps Photo Montage
forever...bullshit!
from an astron rm 50 m psuAttached FilesComment
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Re: The Hall of Shame - Badcaps Photo Montage
Where'd they use that 85C GP part?PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
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Re: The Hall of Shame - Badcaps Photo Montage
I'm affraid that "VENT" is the brand. Seen few in some PSUs, usualy they hold their name and ventednoname? vent brand?
KILL it with FIRE!
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Re: The Hall of Shame - Badcaps Photo Montage
hermei with panasonic vent copy.Attached FilesComment
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Re: The Hall of Shame - Badcaps Photo Montage
in a astron rm50's board.Originally posted by PeteS in CA
this is a low stress app.
lm723 and a mess of pass transistors.Comment
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Re: The Hall of Shame - Badcaps Photo Montage
The uA723 is a very old linear regulator IC designed in the mid 70s, by Fairchild IIRC. Obviously, it was a very decent design, since it is still being used. Boschert used to use 723s as PWM controllers in their late 70s, early 80s medium power SMPSs (their two-stage design).PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
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Re: The Hall of Shame - Badcaps Photo Montage
nkcon from acer 24" lcd ccfl inverter.Attached FilesLast edited by kc8adu; 01-18-2007, 06:33 PM.Comment
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Re: The Hall of Shame - Badcaps Photo Montage
A Sam Yong cap, from a Humax CI5100 DVB-S Sat receiver SMPS.
It was at the 5v rail, all other voltages where far out of spec, as the bad capacitor does not hood up any voltage anymore.Attached FilesComment
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Re: The Hall of Shame - Badcaps Photo Montage
I've just had two PCM-5896 (Skt 7) mobos go down within 3 months of each other.
One was "delivered" in Dec-02 and the other in Mar-2004.
Both have a pair of blown KZG 1000uf 10V caps.
Is this likely to be the "Bad Cap" Problem or a coincidence?Attached FilesComment
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Re: The Hall of Shame - Badcaps Photo Montage
Probably a mixture of age and heat. IIRC KZG are only 2000 hour @ 105c caps, so it might just be its time to go. (AFAIK KZG also seem to extremely dislike high temps.)The ever-amazing (and ever-affordable) KY, Chemi-con's best kept secret.
I'll probably be the only person going to SteamOS once it gets out of beta (ha ha.)Comment
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Re: The Hall of Shame - Badcaps Photo Montage
2006 ost from dell psuAttached FilesComment
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Re: The Hall of Shame - Badcaps Photo Montage
oh crap so early huh?
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Re: The Hall of Shame - Badcaps Photo Montage
Huh, thats may be a bad desing, simply well underated caps or to hot enviroment.
I would say usutch Ost should last at least one year or longer, in a decent desinged PSU.
Any way, for my personal use, Ost are not something i leave for long in my PSU´sComment
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Re: The Hall of Shame - Badcaps Photo Montage
The bulge on that OST cap is hardly noticeable, any novice could easily look at it and think it's still good. But I know from experience that caps don't have to be domed up and spilling their guts out to start showing symptoms! I had a Fujhyyu cap in my PSU that was domed only very slightly (like that OST), and the PC would constantly reboot.
I also have some caps that are apparently Fujitsu polymer (although they have a K vent on top). One of them is ever so slightly bulged - could even be manufacturing defect, it's so small. Board is still stable at the moment.You know there's something wrong when you open your PC and it has vented Rubycons...Comment
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Re: The Hall of Shame - Badcaps Photo Montage
this is from a dell dimension e310
the psu is 230w and is running a p4 3.4 and lots of drives.
started bootlooping and died.
those ost remind me of a bunch of licon i pulled from a video card a while back.
same greenish gold print and bullseye bung.Comment
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Re: The Hall of Shame - Badcaps Photo Montage
Bulged Fujiyuus from an Antec 2 fan PSU.
I found these by luck I just happened to shine my flashlight through the rear fan and decided to check the caps and I spotted a slight bulge. Any novice would think they were fine.
The blue ones are the secondary filter caps which I found after opening it up.
Ironically enough the black caps were right in front of the rear fan (the caps that signaled me to open the supply up) and they still bulged
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Sorry my camera flash obliterated the dielectric if you look closely you should see a bit of it coming out.
Its better to catch them early then catch them late.Attached FilesLast edited by Krankshaft; 07-28-2007, 06:32 AM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: The Hall of Shame - Badcaps Photo Montage
FuhTin? bulged capacitors pulled from HP x4000 Workstation memory controller card. 1000uF 10Volt
Attached FilesLast edited by Phenos; 08-15-2007, 05:51 PM.Comment
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Re: The Hall of Shame - Badcaps Photo Montage
Might be Fuh Yin. The series name, "PSRX" is reminiscent, IIRC, of NIC Components's "NSRX" series name.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
****************************Comment
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Re: The Hall of Shame - Badcaps Photo Montage
Maybe Fuh Kin ????Originally posted by PeteS in CA
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I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.
For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).
https://www.badcaps.net/filedata/fetch?id=3591771
https://www.badcaps.net/filedata/fetch?id=3591772
It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:
https://www.badcaps.net/filedata/fetch?id=359177... -
Introducing... the POS-124Z which really is a POS:
Yep it's a POS allright.
I tried powering it up. It's a KILLER - not fried, but sure will fry things! I got 21V out of it unloaded according to my DMM!
I tried 21W load (car lamp) - got 16V, which is really pushing that lamp.
Then I tried a 50W load (car headlight) - got 13.2V. Not too bad but this is with the heavy load...except the circuit breaker kept tripping.
So I had to take a peek:
EIEW. Looks like a Darlington emitter follower + Zener device. Heatsinking?... -
While our PSU hall of shame thread is fun I thought It'd be fun to have a ripple hall of shame thread too
I'll go first out, it's an industrial PSU that offers +15v -15v -5v +5v rails.
However it has been mounted on a frame with DC/DC converters for producing +12v and -12v as well.
The caps for this have gone a bit high ESR
The measured ripple is around 1700mV, or 1.7v!
After recapping the ripple is gone, also note that the scale on the scope is 50mV/div instead of 500mV per div in this shot
-And that's how you know you have a qualifying... -
Hi any suggestion would really help.
I have Hp Envy X360 13 which is AMD.
Model : 13-ar0005AU
motherboard No : 18740-1.
Problem : can't turn on.
After inspecting the motherboard, I discovered that one of the hall sensors was broken. Can't find the schematic for this board, so not sure about this SMD device number.
Does anyone know the serial number of this LID Switch? -
Back in 2020 i bought a (2nd hand) compact ATX psu to replace my current one. My PC case only fits very short ATX power supplies so i didn't really have the choice of buying a decent 80Plus unit. The current unit is a modded YoungYear unit that i made a thread about a while ago:
A "nice" YoungYear unit? - Badcaps
The "new" unit is a KDM-M6480 480W psu, the 480W number is a typical KDM bullshit claim of course, but the 24A rating on the 12V rail seemed reasonable and the "Active PFC" claim gave me a bit of hope that this was going to be decent-ish....
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