Speedfan being twitchy

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Jun 5, 2009
I just replaced my gt 520 vid card with a radeon 7770 and now speedfan isn't reading my cpu temps properly. It's reading Core 1 as -128 celsius. This is a new change that popped up immediately after installing the new card. Alas, I cannot find any official speedfan forums, so I came here where all the answers seem to be anyway.

I'm running:

Biostar TH67B board, i5 2400 3.1 ghz, Radeon 7770 1 gb gddr5, Windows 7 x64, 8 gb RAM.

I have reinstalled Speedfan to no avail. I'm used to Speedfan reading my sensors right out of the box and after looking through the config options, I'm no closer to figuring this out on my own.
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