HD4350 pink pad on IC, what is it? \ VOGONS

HD4350 pink pad on IC, what is it?

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First post, by feipoa

Posted on 2018-08-28, 02:35

feipoa Offline

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Does anyone know what the purpose is of this pink pad on the back of my ATI HD4350 AGP graphics card? I'm guessing that the IC is the PCIe-to-AGP bridge chip, but why the pink pad? I tried to peal it, thinking it might have some adhesive for attaching a heatsink, but pealing the top layer doesn't reveal any adhesive.

The attachment HD4350_pink_pad.jpg is no longer available

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Reply 1 of 5, by gdjacobs

Posted on 2018-08-28, 03:07

gdjacobs Offline

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It looks like a thermal pad, but I'm not sure where the heatsink is.

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Reply 2 of 5, by feipoa

Posted on 2018-08-28, 03:24

feipoa Offline

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I was able to find some used photos of this item on eBay and it also doesn't have a heatsink. https://www.ebay.com/itm/HIS-Radeon-HD-4350-H … jcAAOSwVnFbYLQY

Using my IR gun in the centre of the pink reveals 58 C. Should I be sticking another pad atop this one and affix a heatsink? Or perhaps remove the pink pad and add a new double-stick pad with heatsink?

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Reply 3 of 5, by agent_x007

Posted on 2018-08-28, 05:35

agent_x007 Offline

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It's a protection from mechanical hits mounted around PCIe to AGP bridge chip (located in that cut-out section).
It DOES NOT act as thermalpad in any way.
You also not going to see a heatsink for it (ever).
It's the main difference between ATI and NV AGP cards that require such chips.
NV needs a heatsink. ATIs solution can work without it.

Reply 4 of 5, by feipoa

Posted on 2018-08-28, 06:29

feipoa Offline

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Its just a bumper? So if I am very careful not to bang it, I can remove the pad?

Plan your life wisely, you'll be dead before you know it.

Reply 5 of 5, by agent_x007

Posted on 2018-08-28, 14:36

agent_x007 Offline

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Yes. Chip itself can be seen in the cut out.
However, I wouldn't be surprised if there were small capacitors and/or resistors undreneath that pink "bumper".
Better be careful while removing it.

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