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Re: AGP bridge chip temps. Was: Re: 7900 GS AGP Power requirements

 
 
William R. Walsh
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      06-30-2009, 06:22 AM
Hi!

> I have a Sapphire AGP ATI HD3650 and the bridge chip gets way too
> hot to hold a finger on for more than a second, even idling at Windows
> desktop.


As does the bridge IC on my ATI provided Radeon X1300 AGP card. It too has a
pad on the IC. I'm not sure of the pad's function--it can't really be
helping the IC shed heat.

The card has run reliably 24/7 for a few years now. Some ICs can run hot and
be fine, maybe this is one of them.

I can't see the temperature of the bridge IC changing a lot based on
workload. It's always doing about the same thing--forwarding and translating
information between GPU and system.

Then again, I've seen more AGP and PCI Express video card failures from heat
than anything else. I still have PCI, ISA and even Microchannel video
adapters that just keep right on working and don't heat up as though they
were using power sufficient to run a small town. Since I don't get into
gaming, the performance of these old adapters is in many cases more than
sufficient.

William


 
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