Why is my laptop so freaking hot?

HP Compaq nc8430, Core 2 Duo T7200 2.0GHz. Fedora Core 12 x86_64, kernel 2.6.32.19-163.fc12.x86_64 (just updated via yum).

At idle, with nothing running in the foreground, the CPU is around 70-72° Celsius, and the other sensors are 80°+. Why is this? It seems like every time I run yum update the machine gets hotter. I wonder if there’s any way to figure out what’s causing this. In any case, it’s pretty annoying. It’s uncomfortable putting the thing on my lap for any length of time.

Notice the temperatures at the top. The first two are Core0 and Core1, the other 2 are other sensors. The CPU is running at 1.0 GHz due to SpeedStep and the temp is still 70°C.

Edit: I forgot I’ve been logging temperature via sensord. I just turned the computer on after having it off all night and within 10 minutes the CPU is back up to > 60°C.

Aug 26 00:01:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:06:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:11:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:16:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:21:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:26:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:31:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:36:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:41:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:46:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:51:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:56:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 01:01:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 01:06:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:11:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:16:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:21:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:26:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:31:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:36:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:41:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:46:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:51:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:56:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:01:34 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:06:34 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:11:34 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:16:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:21:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:26:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:31:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:36:35 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:41:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:46:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:51:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:56:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:01:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:06:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:11:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:16:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:21:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:26:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:31:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:36:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:41:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:46:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:51:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:56:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:01:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:06:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:11:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:16:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:21:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:26:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:31:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:36:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:41:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:46:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:51:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:56:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:01:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:06:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:11:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:16:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:21:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:26:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:31:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:36:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:41:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:46:36 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:51:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:56:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:01:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:06:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:11:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:16:36 ehoffman sensord:   Core 0: 66.0 C
Aug 26 06:21:36 ehoffman sensord:   Core 0: 66.0 C
Aug 26 06:26:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:31:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:36:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:41:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:46:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:51:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:56:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:01:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:06:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:11:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:16:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:21:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:26:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:31:36 ehoffman sensord:   Core 0: 63.0 C
Aug 26 07:36:36 ehoffman sensord:   Core 0: 63.0 C
Aug 26 07:41:36 ehoffman sensord:   Core 0: 63.0 C
Aug 26 07:46:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:51:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:56:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:01:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:06:37 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:11:37 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:16:37 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:21:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:26:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:31:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:36:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:41:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:46:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:51:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:56:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 09:01:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 09:06:37 ehoffman sensord:   Core 0: 66.0 C
Aug 26 09:11:37 ehoffman sensord:   Core 0: 66.0 C
Aug 26 09:16:37 ehoffman sensord:   Core 0: 78.0 C
Aug 26 09:21:37 ehoffman sensord:   Core 0: 83.0 C
Aug 26 09:26:37 ehoffman sensord:   Core 0: 70.0 C
Aug 26 09:31:37 ehoffman sensord:   Core 0: 72.0 C
Aug 26 09:36:37 ehoffman sensord:   Core 0: 74.0 C
Aug 26 09:41:37 ehoffman sensord:   Core 0: 72.0 C
Aug 26 09:46:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 09:51:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 09:56:38 ehoffman sensord:   Core 0: 72.0 C
Aug 26 10:01:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:06:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 10:11:38 ehoffman sensord:   Core 0: 78.0 C
Aug 26 10:16:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 10:21:38 ehoffman sensord:   Core 0: 72.0 C
Aug 26 10:26:38 ehoffman sensord:   Core 0: 72.0 C
Aug 26 10:31:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:36:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 10:41:38 ehoffman sensord:   Core 0: 76.0 C
Aug 26 10:46:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:51:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:56:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:01:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:06:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:11:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:16:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:21:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:26:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:31:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:36:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:41:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 11:46:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:51:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:56:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 12:01:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 12:06:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 12:11:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 12:16:38 ehoffman sensord:   Core 0: 86.0 C
Aug 26 12:21:38 ehoffman sensord:   Core 0: 77.0 C
Aug 26 12:26:39 ehoffman sensord:   Core 0: 74.0 C
Aug 26 12:31:39 ehoffman sensord:   Core 0: 73.0 C
Aug 26 12:36:39 ehoffman sensord:   Core 0: 77.0 C
Aug 26 12:41:39 ehoffman sensord:   Core 0: 79.0 C
Aug 26 12:46:39 ehoffman sensord:   Core 0: 96.0 C
Aug 26 12:51:39 ehoffman sensord:   Core 0: 95.0 C
Aug 26 12:56:39 ehoffman sensord:   Core 0: 75.0 C
Aug 26 13:01:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:06:39 ehoffman sensord:   Core 0: 73.0 C
Aug 26 13:11:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:16:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:21:39 ehoffman sensord:   Core 0: 77.0 C
Aug 26 13:26:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:31:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:36:39 ehoffman sensord:   Core 0: 95.0 C
Aug 26 13:42:18 ehoffman sensord:   Core 0: 80.0 C
Aug 26 13:47:18 ehoffman sensord:   Core 0: 72.0 C
Aug 26 13:52:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 13:57:18 ehoffman sensord:   Core 0: 71.0 C
Aug 26 14:02:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 14:07:18 ehoffman sensord:   Core 0: 77.0 C
Aug 26 14:12:18 ehoffman sensord:   Core 0: 78.0 C
Aug 26 14:17:18 ehoffman sensord:   Core 0: 72.0 C
Aug 26 14:22:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:27:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:32:18 ehoffman sensord:   Core 0: 72.0 C
Aug 26 14:37:18 ehoffman sensord:   Core 0: 71.0 C
Aug 26 14:42:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:47:18 ehoffman sensord:   Core 0: 71.0 C
Aug 26 14:52:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:57:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:02:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:07:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:12:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:17:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:22:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:27:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:32:19 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:37:19 ehoffman sensord:   Core 0: 68.0 C
Aug 26 15:42:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:47:19 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:52:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:57:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:02:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:07:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:12:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 16:17:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:22:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:27:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 16:32:19 ehoffman sensord:   Core 0: 72.0 C
Aug 26 16:37:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 16:42:19 ehoffman sensord:   Core 0: 73.0 C
Aug 26 16:47:19 ehoffman sensord:   Core 0: 73.0 C
Aug 26 16:52:19 ehoffman sensord:   Core 0: 72.0 C
Aug 26 16:57:19 ehoffman sensord:   Core 0: 75.0 C
Aug 26 17:02:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 17:07:19 ehoffman sensord:   Core 0: 71.0 C
Aug 27 08:23:10 ehoffman sensord:   Core 0: 43.0 C
Aug 27 08:28:10 ehoffman sensord:   Core 0: 55.0 C
Aug 27 08:33:09 ehoffman sensord:   Core 0: 62.0 C
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