CPU/Mobo How easy is it to replace a capacitor on a mobo ?

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unless you have SMD soldering/desoldering equipment and expertise (or can get hold of someone who does) , not worth it.
 
Old mobo caps were all TH, no SMD used. The normal, plastic-sheathed ones. Up until 'solid caps', you needed very little experience to change out caps.

Getting the right caps is another story though, good luck with finding low ESR types. What are we dealing with here? Older systems had much more benign current demands, and may be able to get by with lesser caps.
 
The mobo is quite old, approx 8 - 9 yrs. Was working perfectly until 2 weeks ago. It actually has a Slot 1 connector. Finally managed to get a Celeron300A, one of the first really OCable CPUs. That's why I would like to get the mobo fixed. Let's see.
 
No problem, buy some capacitors and get it replaced by some TV-technician.

Yes that is so simple. But...but a little word of caution......

Buy capacitors from some reputed brand and having long leg.

Go to lamington and ask for 1000U 6.3v rubicon capacitors. a sample would be great.......( i think that the capacitors are of 1000 microfarad and 6.3Volts)

any more query.. pm me....
 
If I do manage to find Japanese low ESR caps at LR, roughly how much would they cost ? Less than Rs 50 each ? 50 to 100 ?
 
It aint that tough to change caps. You just have to be careful. Remove the cap, the clean the pads and the hole, insert cap with right polarity, solder then cut the extra leads.

finding low ESR oens are tough :)
 
Japanese/Branded 1000uF 6.3/16V capacitor will cost 10~15 Rs.

About exact 1500uF am not sure but 2200uF 6.3/10V/16V cost 15~25 Rs.

All other will cost in same price range like 5~30 Rs.Only problem, its hard to find capacitor having exact required values.
 
Thanks. The ones I need are 1500mF/6.3V . If I find good caps I will also buy a few 1000mF/6.3V or 10V ones. Three def need replacing, there are six in all, I may replace all six if not too costly.
 
virus32win said:
Japanese/Branded 1000uF 6.3/16V capacitor will cost 10~15 Rs.

About exact 1500uF am not sure but 2200uF 6.3/10V/16V cost 15~25 Rs.
All other will cost in same price range like 5~30 Rs.Only problem, its hard to find capacitor having exact required values.
Click to expand...
I buy 6.3V, 10V, 16V nichicon, rubycon, nippon chemicon for 2-3 Rs eachh. 16V 3300 rubycons costed me 6 and they're huge :S
kinda impossible to get low ESR ones with local vendors unless you raid their shops and search every nook and cranny :)
 
As I feared.

My next D-K order is in Jan/Feb, so if it can wait till then I could lump some stuff into the order (of course you will have to add in shipping + customs) for you.

If you need them right away, you could probably buy off Farnell or RS. I suspect importing a small quantity will be unviable.

There are stores in Lammy which could help. I don't know the names, but I know where they are. Call me when you go there and maybe (if they feel like) will help you out. Normal retailers won't have what you're looking for.

Edit:

http://in.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&Ne=4294961458&Nr=AND(avl%3ain%2csearchDiscon_in%3aN)&N=4294963308+4294955782+4294920726+4294912592+4294883456&Ns=stockPolicy_in|1||new_in|1&binCount=3508&selectAttribute=1,500%CE%BCF#breadCrumb

The navigation, in case the session expires:

rsindia.com-passives-capacitors-aluminum-105C-6.3V-1500uF.

FC is 40, FM is 49. Both are suitable, FM is slightly better for mobo use. Prices compared to international are quite decent. You may have to register to order.
 
@ poboy,
if you are going to do it urself and if you have never used a soldering iron before then remember that soldering is very easy, it is desoldering (that is removing the component from the pcb) which is very dicey. especially on a multilayer pcb like a m/b. if you are going to do it yourself then get yourself a very good desoldering pump.
if any solder gets stuck or remains in the through hole then you will have a very tough time getting it all out.
for your caps need i suggest go to the market and buy a (any) dead m/b for 50 ~ 100 bucks and use the caps on those. this way you will learn both desoldering and soldering.
if you dont want to learn or bother to take the trouble then just take ur existing m/b to any electronic repair shop and get it done.They might have the caps readily avialable with them.
but doing it yourself will give you more satisfaction and joy.
 
TBH, for all desoldering I prefer to destroy the component - it makes removal much easier. For TH, I generally cut off the legs, or in the case where leads are not visible, twist the component till it gives way (effective for removing caps).

On the other side, a braid is more handy than a pump, heat it sufficiently and the braid sucks up all solder and nasties. IME less heat may be more damaging, as it leads to pulled traces and damaged boards.

For SMD, a pair of cutters guarantees that the component is crushed and only the legs are left, very easy to remove. SMD is a PITA to desolder, as one side holds the other in position. Chopping it off guarantees no damage to the board. This is how I mod all my soundcards.
 
I might get Japanese low ESR caps ( 1500mF, 6.3V, 10mm x 13mm ) around the 20th, someone has promised to get me some. I will get someone with soldering experience to replace the caps. Will post the result, never attempted anything like this before. Thanks, everyone.
 
have a good time till then POboy..

BUt, donot forget .................... what happens next...........

However, since we were all interested in the story, why not share your experience and name of the shops from where U got the low ESR capacitors.
We are all interested in the availability of low ESR caps.

Again wishing U A GRAND SUCCESS...............
 
Long time ago I had P-3 mobo some of its capacitors got burst. I just noted all the specifications on the capacitors (2) and bought from Lajpatrai Market, New Delhi for Rs. 25 or so. Paid Rs. 20 for soldering.
 
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