VOGONS


First post, by vutt

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Acquired recently slightly damaged ABit AB-AN4 1.0

One of the simm sockets was damaged and 2 caps are missing (pic attached) TC13 and TC14
MB uses a lot of similarly sized caps with same value (on 2nd pic ) - looks like 10uf 16v ?

Anyone have ABit AB* family MB? It looks like Abit had may boards with similar design.
Strangely enough MB seems to be working. I was able to boot up and run number of benchmarks over 1h or so yesterday.

Reply 1 of 4, by majestyk

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The removed TC13 and TC14 seem to belong to the battery charging circuitry. They might be 10µF, but more likely 1µF or 4.7µF.

Reply 2 of 4, by vutt

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So I might not even need those caps, because I was thinking to utilize ext battery pins.
Btw I measured removed battery contacts voltage while MB was turned on, got 4.9V so charging circuity is still working despite missing caps.

Reply 3 of 4, by vutt

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So I'm getting 0.005mA power consumption on ext battery pins while MB is off. Is this normal figure?

amps.jpg

BIOS seems to be able retain changes. Still I'm slightly wary since 2 power circuit caps are missing.

Reply 4 of 4, by _Leo_

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I (Lord Quake) have this board. The cap in the red triangle is a Tantalum capacitor, 10 µF/16 V.