5 ms·
100ºC is boiling though. You would probably smell solder rosin! Edit: Well TIL there is an awful lot of heat to get rid of.
by rdiddly 7y ago
100ºC is boiling though. You would probably smell solder rosin!
Edit: Well TIL there is an awful lot of heat to get rid of.
- trollied 7y agoBoiling for water. Don’t think your motherboard is made out of that :)
- dr-detroit 7y agoif your computer is getting hotter than the surface of our earth's sun and you're not a gamer thats a major red flag
- gruez 7y agoThat's not too high, considering CPU start to throttle at approx 95C, and MOFSETs can go up to 115C
- klodolph 7y agoMOSFETs can go way, way higher than that. There are CPUs (well, microcontrollers) that go way higher than that. https://www.digikey.com/catalog/en/partgroup/ht83c51/40264 https://www.digikey.com/catalog/en/partgroup/ht83c51/40264 > Specified Over -55 to 225°C > Typically, parts will operate up to 300°C for a year, with derated performance. Whether 100°C is fine for a CPU is a question for the individual CPU.
- thr0w__4w4y 7y agoThank you. I used to design microprocessors (a LONG time ago) and TIL that there are CPUs that can operate at 225°C. Wow. And even limping along at 300°C? Wow wow. BTW, I can't stand the 8051 architecture, but that's really off topic. I guess if you need 225, you need that chip. Reminds me of the Henry Ford / Model T quote...
- klodolph 7y ago8051 can certainly service interrupts quickly and predictably, which is probably all you want if you are sticking a microcontroller inside a turbine engine or oil drill.
- emilfihlman 7y ago>and MOFSETs can go up to 115C Mosfets have a maximum junction temperature of about 175C
- klodolph 7y agoDepends on the MOSFET, of course. Some MOSFETS will run up to 300°C, according to the manufacturers. https://www.digikey.com/product-detail/en/HTNFET-T/342-1091-ND/2046727 https://www.digikey.com/product-detail/en/HTNFET-T/342-1091-... Used in e.g. turbine engines, instrumentation in oil wells or mining operations, and industrial process control. You can get microcontrollers that work in similar temperature ranges, “in any architecture as long as it’s an 8051”.
- emilfihlman 7y ago100%, I should have said "depends on MOSFET" instead of just moving the bar.
- jandrese 7y agoLots of people run video cards up to 95C. Maybe not something I want sitting on my lap though.
- sudosysgen 7y agoMy R9 290X stock would run up to 96C.
- catblast 7y agoI've run CPUs at 100 C. It's not like they melt at that temperature or something.
- aksss 7y ago100C is where intel typically throttles down clock as a life saving measure. You can run at 100C, or higher, but modern CPUs will cut down performance in an attempt to lower temp. High temp = shorter life. Macbooks adjusted that limit upwards so the CPU has a higher threshold before the auto-throttle kicks in. More about that here: https://www.youtube.com/watch?v=947op8yKJRY https://www.youtube.com/watch?v=947op8yKJRY
- LeifCarrotson 7y agoSome low-temp solders melt as low as 140C, but typical SAC lead-free solders you'll find in laptop motherboards melt at 220C. Many laptops are fine if a processor core hits 100C. I've got an old Thinkpad with an i7-3920mx that regularly runs at 95C when running a few VMs and is certified by Intel up to 105C. And yes, I've tried replacing the thermal paste and increasing fan speeds to try to keep temperatures down, because not all processors are successful there, but it has been running like that with no issues for years.