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In Reply to: Re: Does your Audigy 2 NX run hot ?? posted by John Swenson on February 20, 2007 at 15:15:03:
Hi John,
thanks for you reply.
Oscillation was my first thought. Actually I did try with battery too but since I only had rechargeables and only a 4-cell holder I couldn't manage to get a constant supply over 4.8v so couldn't do a good test but I intend do that soon.
The ISP1581 and STAC9460 chips are usually the hottest. Possibly why would a USB controller and a CODEC get hot ?
Follow Ups:
Both those chips disipate about 0.7 watts acording to their spec sheets, thats a pretty hefty amount of power for such small chips, I would expect them to be quite warm. If they are so hot you can't touch them then there is probably something wrong.
what I still haven't found is whether this is a problem with all NX's out there or was it just mine ?
John, your and mine guess was correct. It was the psu! Tonight I did a good test with a battery. The caps and inductor showed no or very little sign of heating. The other two chips I was concerned about were also just reasonably warm.Btw, current drain was 640ma at 5.4v.
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