Help with recapping

[Ghost]

Hi, I have 6 noticeably bulging capacitors that are 3300uF 6.3V and I have no idea where to order replacement caps. The computer I'm recapping is a HP Pavilion a643n Desktop PC.

Motherboard specs:
ASUS name: K8N8V-LA
HP name: Diablo-UL6E


If I need to provide more information just ask.

[v b chil-n]

Re: Help with recapping

Hi, I have 6 noticeably bulging capacitors that are 3300uF 6.3V and I have no idea where to order replacement caps. The computer I'm recapping is a HP Pavilion a643n Desktop PC.

Motherboard specs:
ASUS name: K8N8V-LA
HP name: Diablo-UL6E


If I need to provide more information just ask.

why not start here

[mockingbird]

Re: Help with recapping

post pics and descriptions of the affected caps.

Most likely the caps that need to be replaced are 8mm 16V 1000uF and 6.3V 1500uF KZG caps.

[Ghost]

Re: Help with recapping

[mockingbird]

Re: Help with recapping

Your pictures are out of focus, but I can clearly see the bulging 6.3V 3300uF VRM caps.

You'll want to replace them with these:
https://www.badcaps.net/store/produc...products_id=58
or these:
https://www.badcaps.net/store/produc...products_id=30

Please take better pictures of the other capacitors on the board. I can't make out if they're Nichicon or OST. If they're all Nichicons, then they're OK. But I think the good news is that you're only going to need to change those 6 capacitors.

[c_hegge]

Re: Help with recapping

They actually look a bit like LTEC to me because of the greenish label. They are junk and should also be replaced.

[Ghost]

Re: Help with recapping

Thanks for the help and I will try to take good pictures of the other capacitors around the board.

[Ghost]

Re: Help with recapping



These blue caps are EVERYWHERE on the board.








3 Small caps that don't have indents at the top

[PCBONEZ]

Re: Help with recapping

Looks like Asus should have included a soldering iron in the box when they sold that one.
.

[Ghost]

Re: Help with recapping

PCBONEZ, do the blue caps need to be replaced too? If so what would happen if I only replaced the 6 Maroon caps and tried to use the computer? I mainly play games on this computer.

[mockingbird]

Re: Help with recapping

Ghost -

Nichicon - Check these caps. Since the date is 2004, check for ones that say "HM" on them. If they are all "HD" like in the picture, no need to touch them.
OST - I noticed OST caps... Series "RLG". Post all of the OST caps with vents on top (The ones with no vents leave alone).
Lelon - These are probably GP caps. All of these should be replaced with a Panasonic FC or Nichicon PW equivalent. Again, only those with vents. Post the series to make sure.
GSC - I noticed one or two of these. These must be replaced. Judging by the sleeve cover, this is not the low-esr GSC, so I think it's ok to replace with FC.

All-in-all, a big job. But I've done this before. Heck, I am going to desolder all my Xbox Xenon caps to reflow the motherboard. I think there are like 30 caps I need to unsolder - and then solder back in after I bake it.

[Ghost]

Re: Help with recapping

Thanks alot! and what exactly do you mean by 'Post'? So currently the ones that I know to replace are the 6 bulging maroon ones, the blue ones, the GSC's, and the RLG ones that have vents, right? And what would happen if i ONLY replaced the 6 bulging ones?

[PCBONEZ]

Re: Help with recapping

LTEC are not considered a good brand but if none are actually blown they might last a while.
I honestly can't remember seeing bad LTECs on anything newer than about 5 years old.
While I would just replace them to avoid future problems but you might get away with leaving them.

I would be more worried about the OST and the GSC.
GSC are HORRIBLE.
OSTs can go bad with no visible signs [as can KZG] so without an ESR meter there is no way to know if they are bad.

You definitely should replace all the:
- KZG
- OST
- GSC
- You can ignore anything 6.3mm and smaller if it's less than say 470uF
-I- would replace the LTEC too, simply because 1000uF/6.3v of that grade are cheap and it's not that much more work.
MUCH less work than having to tear the whole system down again later.

LTEC LZP 1000uF/6.3v 8x16mm , ESR = .086 ohms , Ripple = 850 mA

I can't see the RLG uF/volts or the GSC series marks.
.

[Ghost]

Re: Help with recapping

I have about 15 LTEC caps, the blue ones right? So currently my list that I will replace is:
The 6 Maroon KZG 3300uF 6.3V caps
MAYBE REPLACE: 15 Blue caps that say LTEC, with 1000 uF 6.3V
2 GSC 470 uF 16V
1 Lelite 220 uF, cannot read voltage, it is cover and also could not take a picture of this one, its hidden between the CPU fan and some ports. Its the only lelite with vents on the board.
Dont know if I should replace: 1 RLG series 470 uF 16V cap
The rest of the caps don't have vents. Please correct my list if needed and also could I be provided links to where I could order the correct replacements?

[PCBONEZ]

Re: Help with recapping

I dunno what a Lelite is. - Is it 6.3mm or smaller?

Other than that I can dig up or guestimate specs now.

If you'll tell us where on the planet you are we can suggest some sources for appropriate caps.
.

[Ghost]

Re: Help with recapping

Right now I reside in Michigan, USA.

[PCBONEZ]

Re: Help with recapping

Okay, in the US the best places are badcaps.net and mouser.com
[Digikey.com too but they won't have anything for the KZG.]
.

[PCBONEZ]

Re: Help with recapping

.
UCC KZG - 3300/6.3v 10x25mm , ESR = .012 ohms , Ripple = 2800 mA
---
Nichicon HM - 3300/6.3v 10x25mm , ESR = .012 ohms , Ripple = 2800 mA
[NOT the 10x20mm one.]
http://www.mouser.com/ProductDetail/...%252bnNhz4g%3d


LTEC LZP - 1000uF/6.3v 8x16mm , ESR = .086 ohms , Ripple = 850 mA
---
These are over-kill but will work and are on sale for 9 cents each
Nichicon HM - 1000/10v 8x15mm , ESR = .028 ohms , Ripple = 1490 mA
http://www.mouser.com/ProductDetail/...2fSa8Frg%3d%3d


OST RLG - 470/16v 8x20mm , ESR = .250 ohms , Ripple = 540 mA
---
Nichicon PM - 470/16v 8x20mm , ESR = .090 ohms , Ripple = 770 mA
http://www.mouser.com/ProductDetail/...QftD%2fg%3d%3d


GSC whatever - 470/16v 8x14mm , ESR = .056 ohms , Ripple = 995 mA
[Taking their LE series specs. Their best series to be safe.]
---
Nichicon HM - 470/16v 8x11.5mm , ESR = .030 ohms , Ripple = 1140 mA
http://www.mouser.com/ProductDetail/...5dPzmLJpa34%3d


https://cdn.badcaps-static.com/pdfs/...2a084fa7fa.pdf
https://cdn.badcaps-static.com/pdfs/...d50db6d4ae.pdf

Probably be fine to use all HM for this board.
.

[PCBONEZ]

Re: Help with recapping

These would be an upgrade for the 3300uF 6.3v but they cost much more.
Nichicon HN - 3300/6.3v 10x25mm , ESR = .009 ohms , Ripple = 3190 mA
http://www.mouser.com/ProductDetail/...CcYjxgKojeA%3d
https://cdn.badcaps-static.com/pdfs/...69df1e6a59.pdf

.

[Ghost]

Re: Help with recapping

Thank you SO MUCH! I will go with the Nichicon HM 3300/6.3V 10x25mm as I'm not looking to get too much more life out of this computer anyway. The cost came around $13 and its just gonna be a pain to replace every cap that has a vent but its worth it. But the pads are extremely small to solder on and I might need some more practice..

ALSO the name isn't LELITE, I misread its "ELITE" and its 220 uF and the voltage is impossible to read and I accidentally punctured the top venting part with a pen trying to move it so I could read it, so I also need an equivalent replacement for this from mouser.com to finish my order.