Asrock 939Dual-SATA2 - MCZ or HZ ?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • e-hackdotcom
    malcontent
    • Oct 2011
    • 17

    #1

    Asrock 939Dual-SATA2 - MCZ or HZ ?

    I need to do some replacements on this mobotherboard. CE23, 3300uF, 6.3v UCC KZG is bulging on mine. I see re-capping for this mobo discussed elsewhere; https://www.badcaps.net/forum/showpo...20&postcount=3

    amartools replaced his KZGs with Rubycon MBZ.
    Originally posted by amartolos
    UCC KZG 3300V/6.3V, positions 21,22,24,25,26,27 - replaced with Rubycon MBZ
    I was able to locate 10x25mm (discontinued) Rubycon MCZ (633300MCZ) on CapKing, it is spec'd at .009 ohm, 3230 mA (a bit better than MBZ). 10x25 Nichicon HZ (UHZ0J332MPM) is available from Mouser and is spec'd at .0065, 4690. Both beat KZG (.012, 2800)

    Any reason not to go with HZ here ?
    Attached Files
  • retiredcaps
    Badcaps Legend
    • Apr 2010
    • 9271

    #2
    Re: Asrock 939Dual-SATA2 - MCZ or HZ ?

    Originally posted by e-hackdotcom
    Any reason not to go with HZ here ?
    Possibly. See PCBONEZ talk about caps

    https://www.badcaps.net/forum/showpo...30&postcount=7
    --- begin sig file ---

    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

    Please do not post inline and offsite as they slow down the loading of pages.

    --- end sig file ---

    Comment

    • e-hackdotcom
      malcontent
      • Oct 2011
      • 17

      #3
      Re: Asrock 939Dual-SATA2 - MCZ or HZ ?

      Thanks rcaps, I did view that post. I need 10mm diameter here, wider footprint won't fit (see pic). The HZ cap was the best spec I could find for a 3300uF 6.3v 10x25mm. MBZ, MCZ,and HZ in this size are all rated at 2000 hrs (so is KZG); I could not find anything with better specs in a 10 mm can. Based on specs alone, it seems I should go with Nichicon HZ. Feedback on comparative reliability is what I am searching for here; many on this site seem to prefer Rubycon.

      Comment

      Related Topics

      Collapse

      • gabrieljma1
        Request: Full BIOS dump for ASRock Z790-CX (DDR5)
        by gabrieljma1
        Hello everyone,

        I’m looking for a full raw 16 MB BIOS dump for an ASRock Z790-CX (DDR5) motherboard.

        The board powers on (fans spin, RGB lights on, RAM LEDs active), but there is no display output and the VGA and BOOT LEDs stay lit.
        I’m using an Intel i9-14900KF CPU (14th gen), and it seems the BIOS version on my board doesn’t support it yet. I tried to flash the official ASRock BIOS file (renamed .ROM → .BIN) directly using my RT809H programmer, but it didn’t work — monitor stays on but with black screen, so I believe the ASRock update file is not a complete...
        10-08-2025, 03:32 PM
      • Exim
        ASRock N100M, no picture no boot, but semi-alive
        by Exim
        Hi guys,
        I managed to semi-kill an ASRock N100M board after updating Bios from 1.10 to 2.01. It's a zombie now, dead, but not dead.

        ASRock N100M special features:
        - CPU soldered to board, small Intel 12th gen
        - iGPU
        - four POST LEDs

        Problem after updating Bios to 2.01 using the in-Bios update tool: no picture, no boot.
        I am not sure anymore if it booted at least once successfully after updating the bios to 2.01, maybe not, I can't remember. I think it did not.

        Symptoms:
        - no picture/signal on any of the display connectors,...
        04-01-2025, 02:36 PM
      • MasterCap
        What IC does AsRock usually use to make the PWM signals for GPU fans ?
        by MasterCap
        I have an AsRock Taichi 7900xtx, and the minimum fan speed is way too high at 1000rpm, and thats with it's Quiet BIOS switch on, and me setting the fan profile as low as it goes, while on.

        Now 1 thing I could do is just make some circuit to put in between the fan the the GPU, and leave the fan on all the time, but anytime the GPU is sending the PWM for min speed, I'll just send something lower and quieter.

        But does anyone know what how AsRock usually sends the PWM to the fans on GPUs and mobo's? Is it from the MCU that's often near the 12V inputs and fan jack ? Or is...
        12-28-2024, 08:42 AM
      • nolaryie
        BIOS .bin file for ASRock B450M Steel Legend
        by nolaryie
        Hi, I’m looking for a clean, working BIOS .bin dump (16MB) for the ASRock B450M Steel Legend motherboard.


        I’ve already tried flashing the official ASRock ROM file via CH341A, but it won’t post — I believe the capsule format is incompatible.


        Any BIOS version that supports Ryzen 5 2600 is fine (e.g., P2.30–P3.60).


        If anyone has a working board and can dump the BIOS using CH341A or flashrom, I would really appreciate your help.


        Thank you!
        08-06-2025, 12:01 PM
      • khanhtq0
        Full BIOS Dump for ASRock H310M-HDV Rev 1.02 (MX25L12873F)
        by khanhtq0
        Hello everyone,

        I'm looking for a full BIOS dump (.bin) for the ASRock H310M-HDV Rev 1.02 motherboard. The BIOS chip is a MX25L12873F (128Mb / 16MB).

        I’ve already tried flashing the official BIOS from ASRock (version 1.40 and 3.30), but those are Instant Flash versions and don’t include the full SPI image (e.g. Intel ME Region, Descriptor, etc.). After flashing, the board powers on only when I short PS-ON to ground, and it fails to generate Vcore and 2.5V. Other rails like 1.05V and RAM voltage are present.

        I suspect the original Intel ME and descriptor...
        08-06-2025, 02:14 AM
      • Loading...
      • No more items.
      Working...