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Altera_Forum's avatar
Altera_Forum
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16 years ago

stratix II Dual-Piece Lid FBGA getting very hot

Hi, I have developed a test board that is approx 6" x 8" with a stratix II gx running some code. It runs at a bout 40 degrees C (maybe slightly less). I then took components off the design, ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Again Altera has exceeded my expectations about how bad their support could be.

Not once did they ask me for any relevant info to debuig the issue and we were working all channels for support.

The issue basically came down to the 1.2V regualtors being too close to the fpga, the regulator got the fpga warm so it drew more current which made it get wamrer which made it draw more current........

The flat top and the bump top operate at the same temperature, we got two identiacal boards one with the bump top fpga and one flat top fpga and ran the same code.

The temperatures were almost identical.

P.S. don't tell altera let them figure it out on their own.