13 Teapos on my Mainboard

[StevieC]

All of which are 100uF, 10V. Are they enough of a failure risk to warrant replacement? If so, what should i get as replacements for them? They're 5 or 6 mm in diameter, and 7 or 8 mm tall at the most.

[goodpsusearch]

Re: 13 Teapos on my Mainboard

photos pls

[StevieC]

Re: 13 Teapos on my Mainboard

Those are pics of caps by the top of the RAM slots and by the AC'97 header

[seanc]

Re: 13 Teapos on my Mainboard

Can you take better pics? These are really blurry and unfocused.

They did however tell me that it's a Gigabyte GA-7N400 Pro 2.

When asking technical questions, less is not more.

[yyonline]

Re: 13 Teapos on my Mainboard

Those are pretty small caps. I would say given their size, there's a low risk of failure. That said, the risk is there.

From the ones I can see in the photo, they are Teapo SS 10v 100uF.

According to the datasheet, that value of cap comes in two sizes: 5x7mm and 6x7mm.

The 5x7mm has 85 mA ripple, and the 6x7 has 100 mA ripple. You want a replacement that has at least that much ripple handling ability.

Something in Nichicon VZ or Chemicon KMG should get the job done.

This only applies to the caps I can see in the photos, which are the SS series. If there are other caps I can't see from other series, their values may be different.

Also...I see a GSC capacitor in the one photo. GSC capacitors are bad news, I'd take a close look at that one as well.

I see lots of Rubycons on the board, those are good. However, I can't make out what the tall VRM caps near the CPU socket are. Take a close look at those, as they tend to be the most stressed capacitors on the board.

[PCBONEZ]

Re: 13 Teapos on my Mainboard

I agree except for KMG and VZ.
Those aren't low ESR and better caps that small don't cost much if anything more.

While any cap -can- fail the 4 & 5 mm caps rarely do and that includes Teapo.
Any 4 & 5 mm caps rated for 85C instead of 105C are more of a concern than small caps of a particular brand name because they tend to start going bad after a few years.
[Except maybe for GSC or OST. Even in small ones I don't trust them around the chipset or RAM. IMHO those are best used for contaminating landfills. - That said, if they are -clearly- not caps that 'work' hard I'll let them ride if there are no other small caps that need replaced. The GCS I can see on your board is in the fan controller for that nearby header. GA likes to slide GSCs in that spot and as they don't 'work' very hard I wouldn't worry about it unless the fan is getting screwy.]

So, unless they are 85C or the board is flaky for no good reason [with otherwise good caps] I don't usually replace them. Sometimes I get a wild hair and do a 100% recap just because it's on the bench anyway.

I handle 6mm this way. [Revision 57 of Bonez's SOP.]
If it's 220uF or more I treat it as I do 8mm and up caps.
If it's less than 220uF I treat it as I do the small caps.
.

[StevieC]

Re: 13 Teapos on my Mainboard

'k. There's four caps that are all 5 mm diameter 22uF 25V Supacons. I've heard that this brand should be replaced no matter how tiny they are. TopCat's got a 22uF 25V Samxon in his inventory. Is it worth spending the cash to get those replaced when I send the mobo to Topcat?

[Th3_uN1Qu3]

Re: 13 Teapos on my Mainboard

Never heard of Supacon. Maybe you mean Su'scon? Those are so-so, if they are in non-critical areas they will survive.

[PCBONEZ]

Re: 13 Teapos on my Mainboard

No, he/she meant Supacon.

[Th3_uN1Qu3]

Re: 13 Teapos on my Mainboard

Those really look dubious.

[PCBONEZ]

Re: 13 Teapos on my Mainboard

In this case looks ain't deceiving.
.