Hey Andrew--thanks so much for that! Well I live in Arizona USA where
summer temps can hit 45 C (120 F) &, although I won't be operating the
pi at those temps--obviously--I just thought perhaps I should install
it. Anything to keep down heat lol.
I'll probly be operating primarily from the cli. That obviously tends
to take up less resources & therefore expend less heat than graphical
usage, but I have no idea at this juncture how much that's actually a
factor.
I'm pretty whipped now, but I'll check this out more in the morning.
On 5/10/21, Andrew Hart <ahart42@xxxxxxxxx> wrote:
Hi Jackie,
In January I bought A Canakit Pi 4B kit too, but mines the 4GB edition.
Initially, I installed the heat sinks and the fan, but later removed the
fan because it's a bit noisy, is always operating and hasn't actually
been necessary so far for what my Pi has been doing, not even in summer.
I'm sure it possiblet o drive the Pi to the point where it woul be
necessary though; the little crittor can get pretty warm. I have
installed the Raspbian desktop edition on it,but I am actually running
it headlessly at the moment. When I want to play with Orca, etc., I just
need to shut it down, plug it into an HDMI display and USB keyboard, and
power it back up.
As for installing the heat sinks, I have a description of the board and
chips I wrote for myself that I will paste below. I had intended to send
it to Mike, because at the time I was wrestling with assembling the kit,
Mike was revamping www.raspberryvi.org and there was no description of
the Pi4 available. However, the day I was going to send it to him, the
site went live and Mike already had a nice description there! I was
planning to send it to Mike anyway, but with a description already
available on raspberryvi.org, I was in no hurry. Your message has
prompted me to get off my lazy backside and do it, so thanks!
The only thing my description includes that Mike's doesn't is an
indication of where the chips are. Be aware that while I'm sure about
the cpu, memory and USB controller, the function of any other chips is
pure conjecture on my part (so lots of grains of salt are in order). To
determine which hchips were the cpu, memory and usb controller, I
managed to get a neighbour to check the diagram in the booklet that came
with the kit to find out which ones the heat sinks need to go on. I
never managed to find an explanation (even as part of a forum
discussion) via Google that was sufficiently clear to me without being
able to see a picture.
Anyway, I hope this helps. Please, if there are any errors in my
description, I'll apologize for them in advance and would appreciate
them being pointed out.
Hth,
Andrew.
Description of the Raspberry Pi 4B Board
Hold the board in front of you with the surface containing the micro
chips facing you, the thickest end up and the short sides parallel to
the floor.
Connections
In the centre of the bottom edge, but on the back surface of the board,
is the SD card reader. Moving around to the right-hand edge, moving from
the bottom corner to the top corner, you'll first encounter a USBC
female socket for connecting a power supply, then 2 female micro HDMI
connectors labelled HDMI0 and HDMI1 respectively, and finally a 3.5mm
stereo audio output jack.
Across the top, from left to right, there is a female RJ45 socket for
connecting the Pi to a local network via an Ethernet cable, 2 female USB
2.0 ports and then 2 female USB 3.0 ports.
[Caveat, I could very easily have the USB 2.0 and 3.0 ports around the
wrong way. Can anyone clarify?]
There are no external connections on the left-hand edge.
On the front of the board, there are 20 horizontal pairs of pins that
run up the left-hand side from the bottom left-hand corner. These are
the GPIO header pins. The outermost pins are evenly numbered from 2 at
the bottom to 40 at the top while the innermost pins are oddly
numbered from 1 at the bottom to 39 at the top. The layout looks like
the following:
Pin 40, Pin 39
Pin 38, Pin 37
...
Pin 4, Pin 3
Pin 2, Pin 1
Between the GPIO header and the RJ45 connector there is a 2 X 2 grouping
of 4 pins that is apparently the POE header. These are roughly centred
below the RJ45 connector.
Next, I'll describe the position of the chips (integrated circuits or
IC's) as best I can. This is useful to know for affixing heat sinks to
the correct chips.
In the bottom left corner of the board, immediately to the right of the
first four pairs of GPIO pins, there is an almost square-shaped IC,
which I conjecture is a programmable GPIO controller.
Above and to the right of that, sitting athwart the central vertical
axis of the board is the Broadcom SoC chip hosting the CPU. Of all the
chips on the board, it stands out the most prominently and its top
surface has a smooth, glassy texture.
Immediately above the CPU is an SDRAM memory chip.
Above the left half of the memory chip is a small chip just to the right
of the 2X2 POE pins mentioned above. I don't know what this is for.
It is just under the right edge of the RJ45 connector.
Finally, above the memory chip and offset a little to the right is a
chip I understand to be the USB controller. It is beneath the right half
of the left block of USB inputs, the middle block of the three across
the top edge of the board.
In order from largest to smallest, the heat sinks need to go on the
CPU, the memory chip and the USB controller. Just peal the back off each
heat sink and press it on to the top surface of the appropriate chip.
On 10/05/2021 17:29, Jackie McBride wrote:
Hi, my name is Jackie (female version), & I just got my pi 4. I used===========================================================
Stormdragon's Amazon affiliate link, hopefully he gets a lil
somethin-somethin (deliberate misspelling) for that. He recommends the
CanaKit Raspberry Pi 4. I chose the 8GB version.
Thanks to Mike for this list. I'm about to try to put this sucker
together now. I've built many a Windows PC in my day, this looks quite
different (obviously, lol), So I'll have to explore a bit.
I think I'll likely run it headless, I'm also thinking about using it
w/Kali.
Anyway, just following the bouncing ball of list subscribe options &
providing an intro. Hopefully I'll have some good news to share here
soon. I've got a lot of experimenting/playing I'd like to do, & this
seems like it checks all the boxes, i.e., it doesn't take up much
budget, space, or kilowatts.
Please all have a good rest of your day, whatever part of it remains.
& again, Mike, thanks for this resource.
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