# GigaBlox Rugged critical temperature

**URL:** <https://forum.botblox.org/t/gigablox-rugged-critical-temperature/206>\
**Category:** BotBlox Hardware\
**Tags:** gigablox-rugged\
**Created:** [April 17, 2024, 9:58am UTC](https://forum.botblox.org/t/gigablox-rugged-critical-temperature/206 "2024-04-17T09:58:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Lukas](https://avatars.discourse-cdn.com/v4/letter/l/e9a140/32.png) [@Lukas](https://forum.botblox.org/u/Lukas)\
**Post date:** [April 17, 2024, 9:58am UTC](https://forum.botblox.org/t/gigablox-rugged-critical-temperature/206/1 "2024-04-17T09:58:37Z")

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Initial tests with the Gigablox rugged gigabit switch showed the IC heating up by 75k to 95°C at an ambient temperature of 20°C. We would like to use the Gigabit Switch up to 80°C, but would then have an IC surface temperature of 155°C with the included heat sink. How can it be that they specify a temperature range of up to 100°C?

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**Author:** ![josh\_elijah](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.botblox.org/josh_elijah/32/568_2.png) [@josh\_elijah](https://forum.botblox.org/u/josh_elijah)\
**Post date:** [April 17, 2024, 9:57pm UTC](https://forum.botblox.org/t/gigablox-rugged-critical-temperature/206/2 "2024-04-17T21:57:47Z")

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Through qualification testing, we can operate the board at 100C for over 1 hour while verifying network speeds exceeding 945Mbps on all ports.