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Recapped Itox CB60BX runs hot

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    Recapped Itox CB60BX runs hot

    The CB60BX that I had with a few popped Teapos has been recapped. I also have a CB60BX that had all Teapos, GSC, and Luxons that I recapped as well, even though that board was still running fine. Both boards run now without errors, but I've noticed that their northbridges run very warm. I also noticed on today's board that other chips are warmer than I'd noticed before. In particular, some TI GD75232 RS-232 chips are quite warm to the touch and the MOSFETs are also fairly warm. Note that I've got nothing attached to the serial ports and no software accessing them. Nothing is so warm that I can't keep my fingers there, but a later revision of the board does not run anywhere near as warm, but it also hasn't been recapped. Unfortunately I didn't run the boards before recapping, so I don't know if this is normal. The northbridges are certainly warmer than other BX northbridges on both recapped and original boards from FIC, for instance. I also noted that the video chip on the Rage II AGP board runs hotter in the recapped CB60BX boards than in later revisions of the hardware!

    Nothing seems too hot, but it is curious to me that there is a temperature difference at all. I like my hardware to run as cool as possible, of course! I doubt that there's a serious problem because the recapped CB60BX ran fine for several hours today.

    Any thoughts?

    #2
    Re: Recapped Itox CB60BX runs hot

    Did you get the polarity right when you recapped?
    "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

    -Leonid Brezhnev (On the Yom Kippur War)

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      #3
      Re: Recapped Itox CB60BX runs hot

      I'm pretty sure that I got the polarity correct. I can triple-check, but I think that it's unlikely that I would mess up twice. (The board is at work and I'm at home now.)

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        #4
        Re: Recapped Itox CB60BX runs hot

        I checked this morning when I got to work--the capacitors are all installed with the correct polarities.

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          #5
          Re: Recapped Itox CB60BX runs hot

          interesting stuff about the cb60bx.
          we use this board to run a subsea robot and the board has been reliable except for lately as it has been crashing.
          I plan to check the cmos battery and these caps.
          thanks,

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            #6
            Re: Recapped Itox CB60BX runs hot

            i get lots of itox boards here.they use a mix of crapcaps and kzg.
            for an industrial grade board thats a poor choice.they get all polys here.

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