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-   -   Did I just bought a fakecap ? (https://www.badcaps.net/forum/showthread.php?t=96275)

stj 06-05-2021 02:45 PM

Re: Did I just bought a fakecap ?
 
how wide are the 1800uf caps? 8mm or 10mm

stj 06-05-2021 02:47 PM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by Per Hansson (Post 1050497)
Check the polarity of the capacitors: you installed them backwards.
Asus are crazy and uses the half circle on the PCB to designate the positive side.
See for example:
https://www.badcaps.net/forum/showthread.php?t=10480
https://www.badcaps.net/forum/showthread.php?t=16890

they dont always do that - which is actually worse because you need to note the details before you pull the old caps - or go searching for pictures afterwards.

xnRS 06-05-2021 03:06 PM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by Per Hansson (Post 1050497)
Check the polarity of the capacitors: you installed them backwards.
Asus are crazy and uses the half circle on the PCB to designate the positive side.
See for example:
https://www.badcaps.net/forum/showthread.php?t=10480
https://www.badcaps.net/forum/showthread.php?t=16890

CRAAAAAAAAAAP, FORGOT ABOUT THOSE xD got the same issue on Asus GPU yesterday :D

xnRS 06-05-2021 03:08 PM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by stj (Post 1050502)
how wide are the 1800uf caps? 8mm or 10mm

8x20(Width x Length)

xnRS 06-05-2021 04:33 PM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by xnRS (Post 1050507)
CRAAAAAAAAAAP, FORGOT ABOUT THOSE xD got the same issue on Asus GPU yesterday :D

Funniest of all that K58 Kemet caps survived...

xnRS 06-05-2021 04:43 PM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by xnRS (Post 1050518)
Funniest of all that K58 Kemet caps survived...

And the board worked for a long time... You know... 3 days...

xnRS 06-06-2021 06:32 AM

Re: Did I just bought a fakecap ?
 
So, after desoldering caps what I got is:
3 died panasonic(probably not) caps, each of them lost half 800 uF of their capacity(Finally got at least LCR-T4), and got high ESR
1 out of 4 Kemet caps died on desoldering, as one output lead desoldered(or what it has done) from the cap too. Other Kemet caps survived and still got good ESR in range from 0.07 to 0.11 and 360-380uF capacity

stj 06-06-2021 08:21 AM

Re: Did I just bought a fakecap ?
 
a polymer with 0.11ohms sounds so wrong!

xnRS 06-06-2021 09:42 AM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by stj (Post 1050620)
a polymer with 0.11ohms sounds so wrong!

they are 330uf 6.3v, will check the datasheet for these Kemet A758

xnRS 06-06-2021 09:44 AM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by xnRS (Post 1050640)
they are 330uf 6.3v, will check the datasheet for these Kemet A758

So from datasheet it says ESR at 100 kHz 20C is 16 mΩ

stj 06-06-2021 12:45 PM

Re: Did I just bought a fakecap ?
 
0.016 is a lot less than 0.11 :)

xnRS 06-06-2021 05:50 PM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by stj (Post 1050684)
0.016 is a lot less than 0.11 :)

yea I know :D
also, btw, can you give me a link to a poly caps pls :)

stj 06-07-2021 01:23 AM

Re: Did I just bought a fakecap ?
 
best i'v found in 8mm so-far is 1000uf, but i'm still looking :)

xnRS 06-07-2021 03:47 AM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by stj (Post 1050786)
best i'v found in 8mm so-far is 1000uf, but i'm still looking :)

I think this is would be hard one, as polymers are more wide and more low, so I found only 10mm 1800uf one...

stj 06-07-2021 05:24 AM

Re: Did I just bought a fakecap ?
 
1500uf will be fine, but i suspect we wont find more than 1200uf.

mockingbird 06-14-2021 01:25 PM

Re: Did I just bought a fakecap ?
 
Of course they're fake.

I have never seen Panasonic FL sold to the masses that were genuine, nor are they even manufactured any longer.

brethin 06-14-2021 11:47 PM

Re: Did I just bought a fakecap ?
 
You got faked, keep crying.

xnRS 06-22-2021 03:01 AM

Re: Did I just bought a fakecap ?
 
Quote:

Originally Posted by brethin (Post 1052541)
You got faked, keep crying.

wow, so toxic, funny man, get out of that forum. Noone wants to see you there :D


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