Re: [9fans] Raspberry Pi 2 Model B

[erik quanstrom <quanstro@quanstro.net>]

On Sat Feb  7 18:18:29 PST 2015, bakul@bitblocks.com wrote:
> 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).

i believe the gp understood this issue, but guessed that there
was little chance of breaking this particular chip with this particular
clock speed, so it doesn't much matter if the warranty is void.

On Sat Feb  7 18:32:31 PST 2015, khm@sciops.net wrote:

> Apparently you can crash one with a light bulb:
> http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042

crash, not broke.  and the light sensitive chip was located at iirc
u16.

- erik