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by Flojer0
Tue Jun 04, 2013 2:06 am
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

Yes I believe. each number goes up or down a certain voltage and if it is a negative number than you just go the other way.
by Flojer0
Sat Oct 13, 2012 3:28 am
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

I hope somebody can help me here. I have looked through all the posts that everybody says to find 'lots of info' at, but there is nothing specific. I want to edit my config.txt file to undervolt my rpi. Why? Because I would like to see it undervolt :) From what I gather, I just have to edit the ove...
by Flojer0
Wed Sep 26, 2012 5:30 am
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

I'm curious, a little off topic but does the power decrease with USB cable length? Currently I'm using a 12 foot USB cable to power my Raspberry Pi and I worried that if not enough power goes to raspi then it will (overtime) damage the device/SD card. just wondering ;) Whilst I'm not an electrical ...
by Flojer0
Sat Aug 04, 2012 7:46 pm
Forum: Español
Topic: Instalación / Configuración Raspbian
Replies: 9
Views: 4744

Re: Instalación / Configuración Raspbian

El pantalla mio toma algun tiempo para sincronizar. Por eso a veces aparece que el pi no funcciona. Con tiempo me acostumbre a usar los, creo que yo nesecito tener la pantalla apredida antes que aprendo mi pi.

y por favor perdona mi espanol, ahora yo realizo que nececito practica en escribir espanol.
by Flojer0
Sat Aug 04, 2012 7:32 pm
Forum: Other projects
Topic: Red Green mk. 1
Replies: 0
Views: 743

Red Green mk. 1

Here's my admittedly shabby case for my pi. Loosely inspired by Pibow. When I saw that case and how it was made up of layers then I thougth "Hey, My workplace has lot's of extra cardboard. I could try something similar and have a free case". My job is fairly laid back most of the time (I make Honeys...
by Flojer0
Thu Aug 02, 2012 4:02 am
Forum: OpenGLES
Topic: 2D Fluid a-la Plasma Ball via shaders?
Replies: 5
Views: 2493

Re: 2D Fluid a-la Plasma Ball via shaders?

Just to make clear in case it wasn't earlier. What I'm primarily after is the fluid simulation itself. I'd imagine it would be possible on some scale seeing as there is a respectable amount of power in the GPU. I just wanted to touch base and see that my assumptions are sound. Or now that I have dec...
by Flojer0
Wed Aug 01, 2012 8:02 pm
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 627328

Re: Overclocking

Shalo, if I could up-vote users here I would do so for you. You handled the whole "heat not being an issue here" much more thoroughly than I would have.

People do have to remember too, this isn't some 130W TDP hex core, it's a cell phone chip. it's not going to heat up much.
by Flojer0
Wed Aug 01, 2012 7:54 pm
Forum: OpenGLES
Topic: 2D Fluid a-la Plasma Ball via shaders?
Replies: 5
Views: 2493

Re: 2D Fluid a-la Plasma Ball via shaders?

Neat, thanks for the extra resources. I'll have to take a look and see what I can pull together. I've been brainstorming for awhile for something interesting I can make game wise on the pi. If this works I'll have to see what I can do. Already have some thoughts simmering.
by Flojer0
Wed Aug 01, 2012 4:46 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 627328

Re: Overclocking

I just want to add a couple of things here because I am concerned others are going to willy nilly overclock and overvolt their RPi in an attempt to get maximum performance. Then turn around and perform severe burn in testing. Both increasing clock speed and increasing voltage will cause PN junction...
by Flojer0
Wed Aug 01, 2012 4:32 am
Forum: OpenGLES
Topic: 2D Fluid a-la Plasma Ball via shaders?
Replies: 5
Views: 2493

2D Fluid a-la Plasma Ball via shaders?

I'm curious if anyone more in the know than I would know if something like this would be feasible: http://www.youtube.com/watch?v=NDjseVmruH8 I believe the developer of said game used the vertex shaders to do all the work. And I can run this on a laptop of mine that has a graphics chip that doesn't ...
by Flojer0
Thu Jul 19, 2012 4:50 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 627328

Re: Overclocking

What's making it so that all the clocks can't be at their own max at the same time? E.g, arm_freq could hit 1150 and sdram_freq could be 550 separately , but only 1100 and 500 at the same time, respectively. Is it a weak VReg? could be that as the Voltage regulator may not be designed to handle tha...
by Flojer0
Mon Jul 16, 2012 5:29 am
Forum: Advanced users
Topic: How to properly overclock?
Replies: 26
Views: 18911

Re: How to properly overclock?

I just jumped by 100's until I hit instability and pulled back until I found it again. I got 950 without over-volt and 1200 with. Reading what others say it does appear VERY likely that you'll hit 800MHz without over-volt and 1GHz with over-volt very easily. I do have some minor overclocking experie...
by Flojer0
Thu Jul 12, 2012 10:53 pm
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

AndrewS wrote:
Flojer0 wrote:now I just need a proper excuse to run my pi overclocked.
Quake3? ;)
I guess if I needed to run it on my pi, but there's other machines at my disposal that will run it much better.
by Flojer0
Thu Jul 12, 2012 4:27 am
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

Underclocking can be useful from a software-optimisation point of view ;-) When you cripple the CPU it's easier to see what parts of your software are slower than others. Of course the "proper" way to do this is by using profiling software. I can give you that, now I just need a proper excuse to ru...
by Flojer0
Tue Jul 10, 2012 7:21 pm
Forum: Python
Topic: Recommended python reference?
Replies: 4
Views: 1893

Re: Recommended python reference?

I guess I should have mentioned, I'm fairly new to python, not new to programming. I am making use of online resources and have learned quite a lot. but along with enjoying having a book I can flip through my day job gives loads of free time and I could work on learning python at work. Hence a desir...
by Flojer0
Tue Jul 10, 2012 5:22 am
Forum: Python
Topic: Recommended python reference?
Replies: 4
Views: 1893

Recommended python reference?

Hello, I'm looking into getting a python reference book since I took a peek at it and liked what I saw. I'm aware there is a lot available online but I like having a dead tree teach me once in a while. The two I came across so far that looked promising are these: This one is a more complete referenc...
by Flojer0
Sun Jul 08, 2012 6:54 am
Forum: Arch
Topic: arch = terminal only?
Replies: 30
Views: 48684

Re: arch = terminal only?

#Install LXDE: pacman -S openbox lxde gamin dbus #Lxde and needed dependancies pacman -S xorg-server xorg-xinit xorg-server-utils #Xorg pacman -S mesa xf86-video-fbdev xf86-video-vesa #Video Drivers #To use startx, you will need to define LXDE in your ~/.xinitrc file: echo “exec ck-launch-session s...
by Flojer0
Sun Jul 08, 2012 1:38 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 627328

Re: Overclocking

Alright, toyed with the overclocking. managed to get to 1200MHz with stock ram and cpu speeds. Overvolt of 8. For testing I used a raytracer, smallpt ( http://www.kevinbeason.com/smallpt/ ) it's a small raytracer written in c++. not much of a benchmark but it's what I had. I got in the code and chan...
by Flojer0
Sat Jul 07, 2012 10:47 pm
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 627328

Re: Overclocking

Is it something risky to overclock the Raspberry Pi? I wouldn't mind overclocking the CPU to increase Quake III performance. My best guess is that with overclocking and overvolting it will still run reliably for years. It might not run for as many years, as if you didn't overclock/overvolt, but in ...
by Flojer0
Sat Jul 07, 2012 10:31 pm
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

agreed, I may overclock for the tinkering fun. but as said in my case I already have a desktop that is orders of magnitude faster and isn't in the middle of development to boot. When I can see myself running a 4.5GHz quad core x86 it's hard to enjoy a 1.2GHz arm from a perfomance standpoint. but I e...
by Flojer0
Sat Jul 07, 2012 7:53 pm
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

I'm in the process of reading what others have said on the process of underclocking here. but late last night for fun I tinkered with it just naming the speed in the config. I managed to get all the way down to 75Mhz . at that point lxde was very slow of course and I had some minor issues in the co...
by Flojer0
Tue Jul 03, 2012 3:12 am
Forum: Advanced users
Topic: UNDERvolting
Replies: 25
Views: 25117

Re: UNDERvolting

I'm in the process of reading what others have said on the process of underclocking here. but late last night for fun I tinkered with it just naming the speed in the config. I managed to get all the way down to 75Mhz . at that point lxde was very slow of course and I had some minor issues in the com...
by Flojer0
Mon Jul 02, 2012 7:16 am
Forum: General discussion
Topic: I have no idea how to use this thing!
Replies: 26
Views: 12436

Re: I have no idea how to use this thing!

Thanks andyl :) The coffee cooled me down I'm just seeing it from the noob's point of view - since I am a noob. I'm well aware that I should do it a superuser - I'm also lazy. But your average 15-year-old is likely to not want all the hassles. But I just thought a blow-by-blow of my journey through...
by Flojer0
Mon Jul 02, 2012 6:53 am
Forum: General discussion
Topic: What is the best internet browser experience ?
Replies: 29
Views: 46801

Re: What is the best internet browser experience ?

I currently have my pi set up with Arch linux and midori and I consider it usable. before I had Debian squeeze and google chrome and it was borderline, I think the dns prefetching was thrashing the cpu. I used midori and debian first and that was abysmal. With a good connection (40Mb/s in my case) w...
by Flojer0
Mon Jul 02, 2012 6:11 am
Forum: Graphics, sound and multimedia
Topic: Interest in 2D game engine?
Replies: 12
Views: 6584

Re: Interest in 2D game engine?

Alright, this last week my pi finally came in. I've been spending time acclimating to it. The cpu does leave a lot to be desired and ram can be scarce when I'm absent minded. I think I froze the thing stuffing the ram full of web pages a couple of times already. Now I need to finish up my crash cour...

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