The economizer system regulates the flow of air to and from the outdoors. Temperatures within Silicon Graphics' new labs were so cool at one point that workers bundled up in jackets, said Tim Kraus, facilities manager at Silicon Graphics.
"The systems liked it, but people don't," he said.
But tweaking the economizer system has enabled the company to raise the temperature closer to a comfortable 21 degrees Celsius, Kraus added.
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| Apple iPhone 3GS 32GB | 35 plans |  15% |
| Apple iPhone 3GS 16GB | 35 plans | 4% |
| Blackberry Curve 8520 | 6 plans | 1% |
| Samsung Galaxy Icon | 6 plans | 1% |
| Apple iPhone 8GB | 41 plans | 1% |
| Apple mobile phones | 19% |
| Nokia mobile phones |  7% |
| Samsung mobile phones | 3% |
| Blackberry mobile phones | 1% |
| Sony Ericsson mobile phones | 6% |
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