Re: Nichicon yea or nay
Sorry bout posting in the wrong place, but I thought it was a capacitor question, not a MoBo specific question. So what I am hearing is that they should be ok for my vintage socket A boards (GA-7ZXE revs 1.1 and 2.1). But probably not a good idea for a socket 478 or 775 P4 MoBo. I got my caps from TC before but I don't want to spend that kind of money on something where I am not confident about the outcome.
As to replacing missing caps, I hadn't planned to. I don't think that the sockets w/o caps have the values labled. I could guess what would...
Kaptdeath
Member
Last Activity: 11-07-2008, 01:23 PM
Joined: 12-19-2007
Location: Denver, CO
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Nichicon yea or nay
I have searched the threads for information about Nichion caps and have found kinda conflicting information. So I thought I'd pose the question directly. Nichicon UPWs acceptable, or don't waste your time? I assume that they must be better than the UHEs (as they cost a little more). I can't seem to find Rubycons at anywhere stateside and these appear to be the most likely candidates from Mouser.
I need to get a number of them as I have 3 MoBos to cap. (Hopefully one of em' will work.) I guess that's what I get for getting some cheap boards off of e-bay. (The really funny bit is... -
Re: Replace small caps?
Well, the patient died on the operating table. I hope that I didn't fry my CPU in the process. I don't give up so easy. I will aquire another board and try again. Thanks to all for the help. My technique improved significantly during the process. (The smaller solder, what a difference that makes!)
Kapt'nLeave a comment:
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Re: Replace small caps?
Ahh, that is extremely helpful. I am going to clean up the current mess and "give it another go". Hopefully I didn't ruin anything. Thanks.
Kapt'nLeave a comment:
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Re: Replace small caps?
Does the ehtyl work better than isoproyl? (Isopropyl doesn't seem to work all that well.) Also I looked a bit closer at that solder. It's not .5mm it's .05"! (Doh) I'll see if I can't find somethig a bit smaller.
I have soldered on "normal" circuit boards before. ie. traces on one side only, and significantly bigger contact pads.
Thanks for the input.
Kapt'nLeave a comment:
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Re: Replace small caps?
Oh, I almost forgot. I'm using some .5mm 60/40 rosin solder "for PC work" I picked up from Radio Shack. The rosin does not come off easily. I read that alchohol is usually used to remove rosin.Leave a comment:
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Re: Replace small caps?
I've gone over every connection again. Cleaned and resoldered. The board "starts". The fans turn and the CPU and memory get warm. I hooked up the speaker. No beep at all. After about 30 seconds it starts clicking at I guess what would be about 60Hz (sounds like a cheesy toy motor sound). I'm not really sure where I have gone wrong. The keyboard lights blink but laser mouse never lights up (USB ports don't seem to have any power either).
Kapt'nLeave a comment:
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Re: Replace small caps?
I have a 2 40 watt irons. One with a blade tip, one with a pointy tip. I practiced desoldering on a junk board. I'm not sure what I'm doing wrong when I try to resolder the caps. The solder seems to flow up hill. I have tinned both tips and use a bit of solder to help the heat flow. Do you know of any pics showing proper technique?
Kapt'nLeave a comment:
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Re: Replace small caps?
I failed. I struggled. Replaced 6 caps. Decided to see if I still had a functional MoBo. I don't. I couln't really figure out how to get solder to flow through the little hole to make contact on the topside connectons. To be honest I couldn't get solder to stick to the bottom side either. Sigh. I guess it was just a little out of my reach.
Kapt'nLeave a comment:
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Re: Replace small caps?
Big Pope,
Yes, the 330's are 25V. I am replacing them with Samxons.
PCBONEZ,
The 22uf (16V) are Choyo, the 100uf (10V) are GSC.
All,
I found a blister pack of assorted capacitors at Radio Shack (only $4). Some of em are nichicons. Dunno if they are low ESR. It sounds like (for the most part) that the small caps are not replaced. I'll probably find soldering the caps I've got comming exciting enough. (this is my first) I've read the FAQ and guides, practiced a bit on a junk board and...Leave a comment:
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Replace small caps?
I have tried to find an answer to this question on the forums, but have not. I do appologize if this has been addressed elsewhere. I am preparing to recap a Gigabyte Ga-7ZXE. I got a price list for the 3 larger caps on the board and plan to purchase them here (thanks for the quick response Chris!).
My question is: There are a number of itty bitty caps on this board with values of 100uF and 22uF. The lowest value listed here is 330uF. Is that because the little caps are not usually replaced?
Thanks
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