Badcaps.net Forum
Go Back   Badcaps Forums > Motherboards with Bad Capacitors > Major Manufacturers Boards
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 05-06-2017, 06:51 AM   #1
jkn
New Member
 
Join Date: May 2017
City & State: Jyväskylä
My Country: Finland
I'm a: Knowledge Seeker
Posts: 3
Default Asrock P4VM900-SATA2

Hi,

I have a board as the title says and there are two bloated caps on it.
Some information about the failed capacitors:

1x OST RLX 105C 0730 6.3 V 1500 uF

1x OST RLP 105C 0730 6.3 V 1000 uF.

They are located between NB and the main power connector.
I ordered some Panasonic FR-series capasitors
(specific models EEUFR0J102 and EEU-FR0J152L)
but afterwards I noticed that their ripple current tolerances are
lower compared to the originals ones
(1580 mA vs 1650 mA and 950 mA vs 1540 mA).
(provided that i have read correct datasheets)

Is it okay to use them as replacements? Thanks for possible answers.
jkn is offline   Reply With Quote
Old 05-07-2017, 01:47 PM   #2
Per Hansson
Super Moderator
 
Per Hansson's Avatar
 
Join Date: Jul 2005
City & State: ----
My Country: Sweden
Line Voltage: 230v 50Hz
I'm a: Knowledge Seeker
Posts: 3,610
Default Re: Asrock P4VM900-SATA2

It would of course not be optimal.
But then again running the system with failed caps is much worse!
__________________
"The one who says it cannot be done should never interrupt the one who is doing it."
Per Hansson is offline   Reply With Quote
Old 05-07-2017, 05:12 PM   #3
Wester547
-
 
Join Date: Nov 2011
City & State: CA.
My Country: USA.
Line Voltage: 120-125VAC 60Hz.
I'm a: Knowledge Seeker
Posts: 1,061
Default Re: Asrock P4VM900-SATA2

Quote:
Originally Posted by jkn View Post
but afterwards I noticed that their ripple current tolerances are
lower compared to the originals ones
(1580 mA vs 1650 mA and 950 mA vs 1540 mA).
(provided that i have read correct datasheets)
The 1540mA ripple current rating comes from the 10x16 case size 1000µF 6.3V OST RLX in the datasheet, not the 555mA ripple rating found in the RLP datasheet for OST RLP (8x12 case size, 1000µF 6.3V). So I can't possibly see how using FR will hurt there. The 1580mA rating is possibly mistaken for the 1560mA rating in the Panasonic FR datasheet (8x20 case size)? That said, the replacement is rated for 0.030Ω whilst the original was rated for 0.021Ω. Panasonic FR has 4.5x the endurance rating of the original cap, but I would not recommend going up in ESR. This could be a better replacement for the failed RLX.

Still, as Per said, there is nothing worse than running a board with failed capacitors (well, unless you try running the board with no capacitors installed, period, but we won't get into that ). If you are getting the FR from authorized distributors (Mouser, Digikey, etc), they should work fine. It would also be ideal to replace all the OST capacitors on the board, not just two, as if two have failed, the rest aren't far behind.

Last edited by Wester547; 05-07-2017 at 05:38 PM..
Wester547 is offline   Reply With Quote
Old 05-10-2017, 01:42 PM   #4
jkn
New Member
 
Join Date: May 2017
City & State: Jyväskylä
My Country: Finland
I'm a: Knowledge Seeker
Posts: 3
Default Re: Asrock P4VM900-SATA2

Hi,

Seemingly i didn't manage to read the datasheets properly.
So it's okay to replace the failed 1000 µF capacitor with EEUFR0J102?

I found also some Rubycon ZLH series caps (16V, 1800µF, 10x23, with the code T1138). They seem to have better ripple rating and almost same impedance (=ESR?) compared to the failed 1500 µF capacitor.
jkn is offline   Reply With Quote
Old 05-10-2017, 05:48 PM   #5
mariushm
Badcaps Veteran
 
Join Date: May 2011
City & State: Romania
Line Voltage: 230VAC 50Hz
I'm a: Hobbyist Tech
Posts: 3,544
Default Re: Asrock P4VM900-SATA2

Yeah you should be fine with those replacements.
Note that you can also replace 6.3v rated capacitors with 10v or even 16v rated capacitors, as long as they'll fit.
mariushm is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums © 2003 - 2017
Powered by vBulletin ®
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 05:48 AM.

Did you find this forum helpful?