MSI MS7501 replacement caps.

[Deggitt]

Hi, my name is Derek & I am based in London UK. I have a MSI MS7501 v 2.1 mobo. ( oem MEDION pc mb ). 3 caps have bulged due to overheating, marked with red x. Should I replace all the 20 x 8 mm caps marked with coloured circles ?. All the caps are brown with manufacture mark TK (Toshin Kogyo ?).

5 x 1000uf 16v ATWB 802a 20 x 8 blue circle

5 x 1800uf 6.3v ATWB 733a 20 x 8 yellow circle

1 x 1800uf 6.3 ATWB 732a 20 x 8 green circle

Even though the yellow & green circled are the same values they have different numbers, is this significant ?.

What would be good caps to use as replacements ?. I have RS components nearby or could order online from Digikey uk.
I would appreciate any help with this.

https://www.badcaps.net/forum/attach...1&d=1343923366

[mariushm]

Re: MSI MS7501 replacement caps.

Replace all, including the THREE capacitors by the chipset (the heatsink in the middle), not just the one circled yellow.

The blue ones.. the capacity is not critical, might be able to replace with 1200uF ones if they're more available.

1000/16:

http://www.digikey.co.uk/product-det...397-ND/2433531

these are better if you can fit 10mm large ones:

http://www.digikey.co.uk/product-det...2366-ND/613727
http://www.digikey.co.uk/product-det...MPD-ND/2428114

1800 uF /6.3 :

note: you can use 10v rated capacitors instead of 6.3v if the selection is limited. also it seems these would have to be 8 mm wide as there's not much room around them

http://www.digikey.co.uk/product-det...PM6-ND/2428106

http://www.digikey.co.uk/product-det...PD6-ND/2428124

(the HZ might be too good for this board, consider choosing the HM)

the numbers don't matter, they're manufacturing date or internal codes so you can use same for yellow and green.

If Digikey uk doesn't work for you, look for Nichicon HM, HN, HZ , Panasonic FM, FR , Rubucon ZLH, ZLJ

[Deggitt]

Re: MSI MS7501 replacement caps.

Hi Mariushm, thank you so much for the very fast reply..amazing !!. I will take your suggestions & order from Digikey. Even though I have repaired & built sound equipment since the 60s this is my first mobo repair. With your help & expertise I hope I will find it a satisfying pleasure. Once again, thank you for your fast & precise response.

[Deggitt]

Re: MSI MS7501 replacement caps.

Hi, I have just found some KZGs 1000uf 6.3v 8 x 14mm. Space is tight so they have to be 8mm. What should I replace them with. Hope you can help.

[c_hegge]

Re: MSI MS7501 replacement caps.

^
http://uk.farnell.com/nichicon/uhm0j...-3v/dp/1823789
or
http://www.digikey.co.uk/product-det...MPD-ND/2428129

[Deggitt]

Re: MSI MS7501 replacement caps.

Hi again, regards the 1000uf 16v caps. Mariushm suggested the Nichicon HM 10 x 16mm. I have just looked @ badcaps online store they only have HZ 10 x 16mm & HN 8 x 20mm. Which would be the ones to order, I have room for either 8mm or 10mm.
thanks for you help & time

[c_hegge]

Re: MSI MS7501 replacement caps.

Go with the 8mm ones. You run less risk of bending the legs inwards and breaking the seal if you stick to the same size as the originals

EDIT: btw, I doubt if overheating played any role in your failed caps. They are TK brand (which actually stands for Terrible Kapacitor ), which are complete junk and will fail regardless of whether they get hot or not.

[Deggitt]

Re: MSI MS7501 replacement caps.

Hi hegge, man, this is a cool site !! Thanks for your help, I like what you do with bad caps & batts. It beats filling a can with nat, gas & lighting the gas escaping from the hole in the top.

[pyka312]

Re: MSI MS7501 replacement caps.

Hi
Can anyone tell me the values of the 9 capacitors from the left side of the socket and those 2 capacitors near the yellow IDE? My mainboard is MSI-7501 ver 1.0
Thanks.

[c_hegge]

Re: MSI MS7501 replacement caps.

The nine just to the left of the CPU socket are polies, and shouldn't need replacing (unless they are Apaq or Lelon). They are probably 820uF 2.5V, but it's hard to tell from that picture.

The two near the IDE cable are probably 1000uF 6.3V.

[Fast Alpha]

Re: MSI MS7501 replacement caps.

Just asking how do you measure height and width of the capacitor.

[c_hegge]

Re: MSI MS7501 replacement caps.

With a ruler

[tmiha71]

Re: MSI MS7501 replacement caps.

Bad, bad, c_hegge..

With a ruler

You should use Nonius (Vernier scale), to give some credibility to your replay

[selldoor]

Re: MSI MS7501 replacement caps.

Bad, bad, c_hegge..



You should use Nonius (Vernier scale), to give some credibility to your replay

Like how many people do you think will have one of those lying around?
Get in the real world.

Talking of which how about updating your profile with country?

[tmiha71]

Re: MSI MS7501 replacement caps.

Will update profile :-)), later - my favorite word...
Vernier scale, must had wrong impression that it is BASIC tool for ANY lenght measurement...
Ruler is for primary school.

[c_hegge]

Re: MSI MS7501 replacement caps.

^
Well, yeah, if you have one, then it would be a much better option. But I don't have one and neither do most people I know.

[mariushm]

Re: MSI MS7501 replacement caps.

I have a digital caliper, you can find one for under $10.. but good quality ones (more reliable and with good repeatability) are a bit more expensive.

I probably paid about $15 for mine... I don't buy the cheapest things anymore, too poor to buy cheap stuff.

The classic ones are as cheap as 2-4$, for example here's a 4$ one: http://dx.com/p/170mm-abs-resin-sliding-caliper-144010

And here's a digital one: http://dx.com/p/digital-150mm-caliper-2306

[selldoor]

Re: MSI MS7501 replacement caps.

Vernier scale, must had wrong impression that it is BASIC tool for ANY lenght measurement...
Ruler is for primary school.

ANY ?? Well I can measure 10 inches with my rule.

[jpyerry]

Re: MSI MS7501 replacement caps.

I use a pair of Neiko digital calipers I bought on Amazon.com for less than $20. They work really well, I know there are much better ones out there, but I am not a machinist or a metrologist or any other profession that would need anything better. I use them constantly, I bought them when I couldn't find my ruler and wanted to make sure I ordered correctly sized components for a repair that had some very tight height tolerances, with how often I use them, I wish I bought a pair years ago.

Justin

[premosound]

Re: MSI MS7501 replacement caps.

Hi guys, My name is Ed. I'm new to this forum & would like you to know how much I appreciate your info. Now to purchase a few caps & see if they'll get this board running again. I'll let you know howI make out.