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Post by Macsbeach98 on Dec 20, 2016 8:51:05 GMT -5
Shane seen my method for replacing motherboard VRM caps today. Anyone that has replaced motherboard caps knows what a pain it is the copper plane is on the topside of the board and you are working from the bottom side. Getting enough heat to melt the solder completely and getting it out with solder wick can be a challenge. Your normal pencil iron is next to useless if I do it the normal way I either use a 60 watt iron or a gas one and its still a pain a .7mm drill in a pin vice can become your friend to clean the holes up. A solder bath is so much easier you just sit the board on it so the tails of the capacitor are in the solder and they lift straight out you have your new replacement with the tails cut to length at the ready and you just push the new one back in. We replaced 5 caps today in 15 mins and some of that time was waiting for it to heat up. It is made from a copper CPU cooler slug that had a 1/2" hole halfway through it I drilled a hole through the side that meets up with the 1/2" hole and the air from the hot air tool goes in the side and out the bottom. Then I drilled a 3/8" hole a 1/4" deep in the top deep enough for the tails of the capacitor to sit in the solder and chamfered it off with an angle grinder. Looks a bit rough but works good. The slug is held onto an old floppy drive caddy out of an old case with 2 3mm screws. In the pic it hasnt got enough solder in the top you have the hole full overflowing and it works like a charm. Its also a boon for stripping dead boards of their solid caps to use in graphic card mods for extra capacitance they slip out in perfect condition.  |
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Post by ozz on Dec 20, 2016 16:38:33 GMT -5
its a bloody beauty pete, works like a ripper, i couldnt beleive how quick it heats the solder up, pull out and put in , job done  |
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Post by Shadyreaper on Dec 20, 2016 19:55:17 GMT -5
I wish I knew what was wrong with my P5B I think it is the VRM they smell kinda burnt I heard 3 quick pops and I shut the power off it killed the CPU too
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Post by ozz on Dec 20, 2016 20:16:46 GMT -5
have a real close look at the vrms with a pair of magnifying headsets on, if theyve blown hard you may see burn or like a black smoke mark, maybe a hole in them, or the solder can be coming out from the sides from overheat when they fail i had 3 vrms in my first fm2 board a gig f2a 88x-d3h..they actually caught on fire when the went  , dunno why either, id just taken the heatsinks off checked them, they looked ok...new thermal pad tape , started her up and poof, then i bought the crossblade ranger board lol |
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Post by Shadyreaper on Dec 20, 2016 20:24:47 GMT -5
thanks man I will bust out my jewelers glasses and have a look and see I just bought another one along with 20 more CPUs I will have a fun day or so of benching when they get here
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Post by Vinster on Dec 20, 2016 20:43:46 GMT -5
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Post by ozz on Dec 20, 2016 21:09:37 GMT -5
just had a look at that vinnie, it says capacity is 500g, im thinkin, thats half a kilo of solder goes in the pot first if im understanding it right, am i ?
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Post by Vinster on Dec 20, 2016 22:16:05 GMT -5
just had a look at that vinnie, it says capacity is 500g, im thinkin, thats half a kilo of solder goes in the pot first if im understanding it right, am i ? yep... it's a ton of solder that it takes to fill it... what was part of my delay on pulling the trigger on one... that's like $30 of good solder to just fill it... Vin |
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Post by ozz on Dec 20, 2016 22:26:17 GMT -5
just had a look at that vinnie, it says capacity is 500g, im thinkin, thats half a kilo of solder goes in the pot first if im understanding it right, am i ? yep... it's a ton of solder that it takes to fill it... what was part of my delay on pulling the trigger on one... that's like $30 of good solder to just fill it... Vin thats what i thought vin, this is where petes is a cracker, the cap pins fit in the solder hole at the top, doesnt take a lot of solder but does it beautifully with good heat from the hot air gun does it great |
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Post by zila1 on Dec 21, 2016 11:10:58 GMT -5
Yeah, I thought about getting myself a solder pot too. Removing caps can be a real pain.
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Post by mistone on Dec 28, 2016 19:49:59 GMT -5
Pete, this is awesome, i have recapped three boards so far and every time it gets a bit easier but it's still a damn hard work with a normal iron! I just use a sewing needle to clean the holes after desoldering dead caps. i stick the dull end into a wine cork so it's easier to push through. I laugh at myself doing it, but gets the job done. Could you maybe do a little video so we can see that thing in action? i would love to see it but i'm unfortunetely nowhere as near as shane is, to you
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Post by ozz on Dec 28, 2016 20:11:40 GMT -5
Pete, this is awesome, i have recapped three boards so far and every time it gets a bit easier but it's still a damn hard work with a normal iron! I just use a sewing needle to clean the holes after desoldering dead caps. i stick the dull end into a wine cork so it's easier to push through. I laugh at myself doing it, but gets the job done. Could you maybe do a little video so we can see that thing in action? i would love to see it but i'm unfortunetely nowhere as near as shane is, to you its a cracker man for sure, works like a pisser and so quick too |
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Post by Macsbeach98 on Dec 28, 2016 20:49:35 GMT -5
A video maybe next time me sidekick is over.  |
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Post by ozz on Dec 28, 2016 21:01:05 GMT -5
A video maybe next time me sidekick is over. ill be in that pete, would be fun to do, 2 dopey aussies makin a video and the boys pissin em selves laughin at out accent and how we talk but gotta fix me brakes first, ive run outta brakes on the van, rear master cylinder rubber seal problem i think, losin fluid, and its been too bloody hot so ill get to it . i got no rear brake action |
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Post by Vinster on Dec 30, 2016 20:32:22 GMT -5
A video maybe next time me sidekick is over. Please have a few beers before you do it.. lol Vin |
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Post by Mr.Scott on Dec 30, 2016 20:58:18 GMT -5
A video maybe next time me sidekick is over. Please have a few beers before you do it.. lol Vin lol. Bob and Doug do voltmods.  |
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Post by Vinster on Dec 30, 2016 21:06:51 GMT -5
Please have a few beers before you do it.. lol Vin lol. Bob and Doug do voltmods. You got it eh ! Vin |
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Post by Aleslammer on Dec 30, 2016 21:24:15 GMT -5
Please have a few beers before you do it.. lol Vin lol. Bob and Doug do voltmods. I thought that was the way you were supposed to it!!!!!!!~! |
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Post by Mr.Scott on Dec 31, 2016 8:27:05 GMT -5
lol. Bob and Doug do voltmods. You got it eh ! Vin Figured you'd appreciate that. |
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Post by mistone on Jan 4, 2017 14:03:08 GMT -5
This has to be a thing. lol
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Post by Vinster on Jan 19, 2017 9:10:20 GMT -5
Check out what I found on one of my local suppliers website...  I'm going to have to check this out the next time I'm there... not a bad price wither.. Vin |
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Post by Macsbeach98 on Jan 19, 2017 15:40:42 GMT -5
Good stuff handy thing
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Post by MachineLearning on Nov 2, 2022 0:45:32 GMT -5
So, I'm looking to use this great method on motherboards to re-cap. If I may ask, how do you position the motherboard so it's stable & sitting precisely in the solder? Do you use an elevated platform to hold the board? |
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Post by Macsbeach98 on Nov 2, 2022 1:58:26 GMT -5
Naa just sit it on top with your hands then pull the cap out with one hand.
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Post by austin86 on Nov 2, 2022 9:32:02 GMT -5
I use a butane soling iron heat up the leads, pull the cap with my hands. To install a cap I cut the leads on the cap to the same size, line it up on the holes and heat the holes until the leads of the caps slid through. I don't use a wick or solder sucker.
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, dunno why either, id just taken the heatsinks off checked them, they looked ok...new thermal pad tape , started her up and poof, then i bought the crossblade ranger board lol
