More is bigger; mine is bigger than yours!

[Elitist]

Couldn't find an item about the record for most bad caps on one board? If there is one, please moderate by a merger.

Soltek SL-75KAV has 14 bulging, leaky GSC caps.
Is this a record?!
How did it get this bad?
Mostly they die when one goes bad.

[Topcat]

Re: More is bigger; mine is bigger than yours!

Abit KT7-RAID
30 caps 1000uF and up, every single one had vented. That's my personal record for single board with most bad caps in it.

[Elitist]

Re: More is bigger; mine is bigger than yours!

Truly amazing!
What make(s)?
Of course, being Abit, they are one of the few companies to accept responsibility and make reparation?

[dood]

Re: More is bigger; mine is bigger than yours!

My worst is here-

https://www.badcaps.net/forum/showthread.php?t=1583

[Elitist]

Re: More is bigger; mine is bigger than yours!

From your pictures, dood, I could only count 14, maybe 15, bad units. TC's board is far worse.
The trick with MOSFET removal (and stubborn caps) is to pre-warm the entire board area with an electric hot air paint stripper and use a low wattage (more controllable) iron to administer the coupe de grace. Works every time for me. I use the same brutal technique to strip and recycle mem chips from dud video cards - apply the heat gun from the reverse side, really let it rip whilst applying gentle leverage with a screwdriver to the chip (is a screwdriver the most valuable tool ever devised?). Solder (60/40) melts ~182C, silicon ~1420C, although eutectics at the junctions may be affected above ~500C? I look at it this way - at worst, the entire unit is either going into the bin or to China for clandestined stripping, so what's to lose?! Since the industry achieved all-ss, you'd be amazed at the thermal punishment most stuff can tolerate, unlike a quick burst of static [so always work without your shoes and socks, preferable standing on a flagstone floor].
Further, on MOSFETs - try to find the datasheet from the Web. Some are difficult to source, some proprietary types (eg in washing machines!) impossible. Often, it is possible to find an entirely satisfactory equivalent with almost the same or better characteristics, sometimes cheaper, even. Indeed, I find I have such a vast store of stuff stripped from a range of dead hardware that I can sometimes source one from my personal stock!

[Elitist]

Re: More is bigger; mine is bigger than yours!

One final note: not sure I'd spend any time or lolly on a Slot1 board! Plenty of SktA boards around needing recapping going for the asking, and many of these will do 2GHz, or at least, clocked, into the 'XP' 2000+ range, whatever that means.

[dood]

Re: More is bigger; mine is bigger than yours!

One final note: not sure I'd spend any time or lolly on a Slot1 board! Plenty of SktA boards around needing recapping going for the asking, and many of these will do 2GHz, or at least, clocked, into the 'XP' 2000+ range, whatever that means.

There were more than 14 failed caps. I didn't get any pics of the caps between the PCI slots and around the bottom corner of the board. The only reason I recapped this board was because it was for a customer that needed data off of a RAID array that he had running on this system.

And, you were just looking for our worst, so that's what I gave you! I wasn't competing with Topcat for overall worst...

[kc8adu]

Re: More is bigger; mine is bigger than yours!

From your pictures, dood, I could only count 14, maybe 15, bad units. TC's board is far worse.
The trick with MOSFET removal (and stubborn caps) is to pre-warm the entire board area with an electric hot air paint stripper and use a low wattage (more controllable) iron to administer the coupe de grace. Works every time for me. I use the same brutal technique to strip and recycle mem chips from dud video cards - apply the heat gun from the reverse side, really let it rip whilst applying gentle leverage with a screwdriver to the chip (is a screwdriver the most valuable tool ever devised?). Solder (60/40) melts ~182C, silicon ~1420C, although eutectics at the junctions may be affected above ~500C? I look at it this way - at worst, the entire unit is either going into the bin or to China for clandestined stripping, so what's to lose?! Since the industry achieved all-ss, you'd be amazed at the thermal punishment most stuff can tolerate, unlike a quick burst of static [so always work without your shoes and socks, preferable standing on a flagstone floor].
Further, on MOSFETs - try to find the datasheet from the Web. Some are difficult to source, some proprietary types (eg in washing machines!) impossible. Often, it is possible to find an entirely satisfactory equivalent with almost the same or better characteristics, sometimes cheaper, even. Indeed, I find I have such a vast store of stuff stripped from a range of dead hardware that I can sometimes source one from my personal stock!

i strip many boards before i toss them.
some parts are a pain in the ass to source and stupid minimum quantity of thousands often apply.
as for the slot 1 comment..you would be shocked to see what gets sent to me for repair.
i dont argue.fix it and get paid.
much of the really old stuff is proprietary and irreplaceable though.

[Elitist]

Re: More is bigger; mine is bigger than yours!

Not much shocks me any longer! Seen any thermionic valves recently?!
The good thing about customers still using old kit is that they probably still have W9x running. Frankly, I turn down anything associated with the NT series and NTFS unless they just want an Fdisk and new install. Life is just too short, esp. when you don't have that nice DOS underlay to access everything. Amazes me that so many will settle for Redmond cr*p. Must run into the billions by now?

[Topcat]

Re: More is bigger; mine is bigger than yours!

i strip many boards before i toss them.
some parts are a pain in the ass to source and stupid minimum quantity of thousands often apply.
as for the slot 1 comment..you would be shocked to see what gets sent to me for repair.
i dont argue.fix it and get paid.
much of the really old stuff is proprietary and irreplaceable though.

Yup. I get socket 7 stuff all the time. I fix it and get paid. It's the client's business what they do with them. In cases where its proprietary, they're grateful that their hardware could even be fixed, it cost them a few bucks, but saved them thousands more!

[kc8adu]

Re: More is bigger; mine is bigger than yours!

Not much shocks me any longer! Seen any thermionic valves recently?!

i own about 50 thousand of them!
i have several large "boatanchor" recievers and a few round screen color tv set that work perfectly.
and even a fisher 400 as an amp on this pc.

[kc8adu]

Re: More is bigger; mine is bigger than yours!

Yup. I get socket 7 stuff all the time. I fix it and get paid. It's the client's business what they do with them. In cases where its proprietary, they're grateful that their hardware could even be fixed, it cost them a few bucks, but saved them thousands more!

...looks at 4 servo products cnc consoles stacked up here awaiting rebuild....

[Elitist]

Re: More is bigger; mine is bigger than yours!

Try this one:
www.theinquirer.net/default.aspx?article=35537
for all valve fans.
Incidentally, there aint no such thing as a 'vacuum tube' - they are partially evacuated and injected with various partial pressures of inert gases (a lot, in the case of gd varieties), getter, etc. BEFORE they are finally sealed.