Asus A8R-MX/DP motherboard change 7 caps

[Oldschool297]

I have a asus a8r-mx/dp motherboard, can anyone id the open ones? I can't see the text without removing the processor and i can't at the moment. The motherboard is from 2005, support a dual core processor, rare at that time.

[PeteS in CA]

Re: Post help identifying capacitors here

Those caps look to be from Nippon Chemicon. I am going to guess they are KZG or KZJ series, which are known to die ugly.

[Oldschool297]

Re: Post help identifying capacitors here

Thanks, 1500, 6,3v 8mm/20mm. I have found an amazon but i don't know if they are false or good.

Those caps look to be from Nippon Chemicon. I am going to guess they are KZG or KZJ series, which are known to die ugly.

[Oldschool297]

Asus a8r-mx/dp motherboard change 7 caps.

I have tried to solder them out with 350 to 450 heat but it don't work. The tenn isn't much on the pins and it's hard to reach them. It seems like the tip only gets against the legs? The solder tool is not the big right to the motherboard. It is the blue one.

[Oldschool297]

Re: Asus a8r-mx/dp motherboard change 7 caps.

Is this something to recommend? https://www.youtube.com/watch?v=BFDwsdEGsDE

[Oldschool297]

Re: List of Bad Cap Manufacturers

I took a try and bought these. Did i do wrong? https://www.amazon.com/dp/B08RXW8VJ2...roduct_details

[Oldschool297]

Re: Post help identifying capacitors here

I got one loose so the legs are left on the motherboard. It seems to be a black plastic plug on the back. It had been easy to insert a new one to the legs on the motherboard. If the + and - gets right. It is KZG 6.3V 1500UF (M)105c.

[Per Hansson]

Re: Asus a8r-mx/dp motherboard change 7 caps.

Is this something to recommend? https://www.youtube.com/watch?v=BFDwsdEGsDE

No that is completely retarded!
You need to add some fresh solder to the legs, the more the better really.
It helps with heat transfer.
But above all you need to practice soldering on some scrap PCB's if you never did it successfully before or you will destroy this mainboard.
You also preferably need a decent soldering iron with say 60W of power, and thermal regulated.

I took a try and bought these. Did i do wrong? https://www.amazon.com/dp/B08RXW8VJ2...roduct_details

They could be ok, but the KZG have been out of production for at least 15 years.
I would make a guess that these are from 2009 but the problem with United Chemi-Con's dating system is they only print the last digit of the decade.
So the "9" can really mean 2009 or 1999 you really can't know... But 2009 is more likely (and 2019 is impossible because they where out of production then).
Keep in mind it is a good idea to reform old capacitors, see this thread for info: https://www.badcaps.net/forum/showthread.php?t=50530

[Oldschool297]

Re: Asus A8R-MX/DP motherboard change 7 caps

It seems hard i tried with 400 and it goes up to 450. But it dosen't loose. I tried to add more solder to the legs but then it only gets loose and the original solder to the legs are left.

[Per Hansson]

Re: Asus A8R-MX/DP motherboard change 7 caps

Take a look at this thread: https://www.badcaps.net/forum/showthread.php?t=485
The best way to remove the solder is with a needle as willawake shows further down in that thread:

[Oldschool297]

Re: Asus A8R-MX/DP motherboard change 7 caps

I tried to add more solder to the legs and heat up but it don't move, it must be hard to remove caps.

[Oldschool297]

Re: Asus A8R-MX/DP motherboard change 7 caps

I solved it by taking a bigger solder tool 75W. Thanks for the help. I bougth these https://www.amazon.com/dp/B08RXW8VJ2...roduct_details i took a chance

[Oldschool297]

Re: Asus A8R-MX/DP motherboard change 7 caps

I got it to work with KZG 6.3v 1500uf. The system seems stabile to. It was the first time changing. Of course i placed the caps wrong the first time by looking at a photo online where the white strip on the caps should be on the white hemisphere on the motherboard. But i did not start it, by looking at the others i realized they was wrong so i had to solder them away one more time. Asus has the negative on the plus side. Reversed. Thanks for all help.