I lived in a place a couple years ago with no AC, and I was living in the attic. My PC would regularly see over 100*F ambient temps and still cool adequately, even while doing pretty CPU-intense stuff. Even if the outside air is hot, the CPU fan should automatically crank up a couple notches to keep the core temp below 60*C. Laptops are a different story - I have had some get so hot that they actually burn your legs, who knows what improper airflow could do in that situation.

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth