mikk4229
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Dropped my raspberry on the floor

Sun Apr 07, 2013 12:15 pm

As the subject says, I dropped my raspberry pi on the floor.
It happened about a week ago.
It was in a plastic case, and nothing seems to be broken... but the CPU seems to be easier overloaded.
Do you think the CPU could be damaged? How could I find out if it was?
I don't know if it's just me, or if the CPU really is damaged.

dom
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Re: Dropped my raspberry on the floor

Sun Apr 07, 2013 1:08 pm

Extremely unlikely.

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Jim JKla
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Re: Dropped my raspberry on the floor

Sun Apr 07, 2013 1:15 pm

Could be you loosend a dry solder joint as Dom says this is etremly unlikely but possible.

The fix is drastic and dangerous to your RPi and involves baking the board to reflow the solder (It's not reccomended probably the ultimate last resort on a board thats allready out of waranty). ;)
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DeeJay
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Re: Dropped my raspberry on the floor

Sun Apr 07, 2013 2:03 pm

mikk4229 wrote: the CPU seems to be easier overloaded.
How are you measuring this? What results did you have before the accident? What results do you get now?
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Re: Dropped my raspberry on the floor

Sun Apr 07, 2013 2:10 pm

mikk4229 wrote:... but the CPU seems to be easier overloaded.....
Could you please explain in detail what you mean by that statement?

Was the RPi powered and running when it was dropped?
Was an SD card installed?
Unless specified otherwise my response is based on the latest and fully updated Raspbian Stretch w/ Desktop OS.

mikk4229
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Re: Dropped my raspberry on the floor

Tue Apr 09, 2013 12:55 pm

I'm using wheezy...
The mouse is a bit laggy when I'm moving it...
It was turned off, but the SD card was plugged in...
The SD card works as well as before...

ejolson
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 5:34 am

mikk4229 wrote:I'm using wheezy...
The mouse is a bit laggy when I'm moving it...
It was turned off, but the SD card was plugged in...
The SD card works as well as before...
It is very common for a computer to appear to run slower over time. In the PC arena there are well developed performance monitoring tools that can be used to diagnose hardware problems and predict failure. While there are no comprehensive hardware diagnostics available for the Pi, you can tell a lot by running some simple benchmarks and comparing results. I have written a simple program and tabulated performance results for a number of computers which you may find helpful getting started testing your Pi.

Heater
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 6:37 am

It is exceedingly uncommon for a computer running Linux to appear to run slower over time.

This phenomena was common in the days of MSDOS when disk fragmentation would cause disk access to slow down. An issue fixed with disk defragmenter programs.

It's common in the Windows world for reasons I have no idea about. I can guess it's down to all the anti-virus scanners and other cruft that people tend to accumulate in their Windows systems.

Having been a Linux only user since 1998 I have never heard people say they suffer from such slowdowns using Linux.

Pithagoros
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 7:28 am

For two reasons.
Firstly, adding more software that runs as daemons taking their share of memory and CPU, increased paging.
Secondly, the perceived slow down that a user feels after going back to a slow computer after using another faster zippier one.
Neither scenario is unusual.

Heater
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 7:59 am

Very true pithagoras,

Of course if you set more processes running on your machine they take computer power, performance has to come from somewhere. Something else has to be slowed down. You can't fight the laws of physics.

And I guess one forgets how slow a machine is after using a faster one for a while.

One could also imagine that ones databases get slower to index and slower to access as they grow bigger.

And so on. Some what obvious and very much dependant on the applications a use sets running on his machine. Performance analysis will depend on the applications in use, tuning that performance may be trivial or complex. For example optimizing database performance may not be easy and may depend heavily on the patterns of usage.

That is all far from some nebulous statement that "computer to appear to run slower over time".

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Jim JKla
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 9:38 am

I wonder if this is the inverse of "Moore's Law" that the peception of any given RPi's speed halves every year and a half ;)

Given the subjective nature of percieved speed maybe there is some relatavistic component to the inverse that may change the time element of the inverse of "Moore's Law". :?:

The advantage you have with a RPi is you can build your RPi to do one dedicated task and swap out the SD card when you change task, this would stop an accumulation of background demons. Or a more drastic option a re-image

Of course we now have multiple generations and models of RPi as well as flavours and Build's of Linux.

All of these variations can lead to different perceptions of speed.
Noob is not derogatory the noob is just the lower end of the noob--geek spectrum being a noob is just your first step towards being an uber-geek ;)

If you find a solution please post it in the wiki the forum dies too quick

Heater
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 11:49 am

All my computers seem to get faster and faster every year.

Probably because I'm getting slower and slower :(

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DougieLawson
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 12:36 pm

Heater wrote:All my computers seem to get faster and faster every year.

Probably because I'm getting slower and slower :(
They must be doing more they're getting hotter. Are you cooling down?
https://www.youtube.com/watch?v=ssL1DA_K0sI
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buja
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 12:43 pm

DougieLawson wrote:...
They must be doing more they're getting hotter. Are you cooling down?
https://www.youtube.com/watch?v=ssL1DA_K0sI
Pi hole?

Heater
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 1:22 pm

Dougie,

The link to the idiots with the exploding AMD processor has been posted here a dozen times in recent days.

Well, durp, durp, operating electronic components out of spec. often has some surprising results.

It's amazing how dangerous a red LED powered from 10 volts without current limiting can be.

Don't do that.

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DougieLawson
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Re: Dropped my raspberry on the floor

Sun Mar 20, 2016 1:37 pm

We should get back on-topic now. Has the OP tried building a new SDCard? Has the OP done a visual inspection of the board looking for borken components? Does it do anything exciting with the SDCard out and the power connected?
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