From mboxrd@z Thu Jan 1 00:00:00 1970 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: Your message of "Sun, 08 Feb 2015 02:10:25 +0100." References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> <20150207202141.6A037B827@mail.bitblocks.com> Date: Sat, 7 Feb 2015 18:22:41 -0800 From: Bakul Shah Message-Id: <20150208022242.01EAAB827@mail.bitblocks.com> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4311a862-ead9-11e9-9d60-3106f5b1d025 On Sun, 08 Feb 2015 02:10:25 +0100 hiro <23hiro@gmail.com> wrote: > Do the RPI2s break very fast or why is the warranty such an issue? A chip's rated clock rate is typically much lower that the max freq it at which it can run stably -- and there is fair bit of variation in this max freq. A rare few 2836s can even run at double the default frequency. But as a side effect of speeding it up and/or increasing internal voltage it will also run much hotter & if you don't use a heat sink, it is likely to fail much sooner. They catch such use by setting an irreversible bit inside the chip. RPF's warranty is valid only if you left these parameters at their default value or changed them as per their instructions (used raspi-config under linux or use the setting n config.txt as per what raspi-config does).