Overclocking Experiment (again)

[Robster]

I decided that the last overclocking experiment didn't go far enough, so I increased the CPU voltage again and now my GP32 can do 170MHz reliably! That's a 20MHz increase, at only a slight risk of killing the CPU

I've put a bit of a description up at cobbleware.com (follow the "Gp32 Development" link), in case anyone's interested.

 

[mr.spiv]

Hardcore <_<

 

[r0lf]

Hardcore <_<

indeed!

*cringes* at what looks like 2 or 3 smd resistors in series.

....still maximum kudos dude, wtg.

 

[craigix]

170mhz and 32M of ram, pretty pimped up there, any further plans for it?

Did you try any higher speeds? Or was 170mhz the limit?

Some people can get above 170 with an out of the box gp32, but it will often crash eventually.

-Craig

www.gbax.com

 

[deanollive]

what sort of extra power does this souped up gp32 boast???? It sounds sick!!! )
R u the same guy who upped the RAM??? I read something about it but what can u do that a norm gp couldnt and will this open up new doors for other emus??

Cheers

C3

 

[Sponge BoB]

I heard somewhere that u where gunna try to replace the cpu with a 400mhz arm11. u still gunna try that?

any one else gunna try this, i can o/c to 166mhz, does this mean with the upgrade i may be able to o/c to 188( I heard this was the maximum our arm9 processor could o/c). whats snes emulation like at 170, whered u get the emu i,ve tryed 172 which boots and after anout 3 seconds of loadin the rom crashes.

 

[Tidus]

WOW your GP32 is super awesome now Robster congratulations again

have you try to play Snes emu at this speed ??? and so, how it look like??? ;p

 

[Robster]

Craigix: yeah, I forgot about that little detail: 170 was good for over two hours (till I turned it off), 174 crashed immediately. So the limit's pretty clear

Sponge Bob: Nah, I'll never change the CPU. There isn't another CPU in the world that has anything like the same pinout as the one in the GP32, and also ALL software would have to be re-written. Including the bios. Even the Samsung S3c2410, which is the newer model of the '2400 in the GP32, has significant differences and would never be worth the effort.

And if you can o/c to 166MHz with your stock GP32, don't even think about modding it

 

[Ruune]

Robster you are a sick unit, ill tell u that. Does anyone know how small those resistors are ??? And he stacked them like lego's :blink: Congrats all around, but your crazy man lol....

 

[Sonic-NKT]

hehe looks great... i think about doing both mods... cause i can only clock up to 150... and not for long...
and a friend of mine is very good at soldering, and has many tools for it, perhaps i ask him to do this for me.
but how long runs your unit at 170 with 32mb? how long at normal 133?
and is there a new VBA out which uses the 32mb and the 170

 

[TigerClaw]

What about a passive heatsink on the ARM processor?
Is there room for it?
And the most important questions, it run hot overclocked?

 

[generalnmx]

Well done, Robster.

However, I would like to remind everyone that overclocking does drain the batteries faster...especially increasing the core voltage of your CPU. I don't want people's CPU overclocked to 1000MHz and people wondering why their GP32 lasts 2 minutes on new batteries.

(Yes, yes I know...)

 

[kokonik]

I can overclock my gp32 to 172 mhz without modding :huh:
But well done Robster

 

[Azure]

I really need to do this to my GP32 but I don't want to take the risk. At first I thought you created a program that would somehow increase the voltage.

 

[Ryca]

How do you over clock without modding? I'm not sure how to tell how fast mine is running.
I can play GBC rom with sound and no frame skip at full speed (most, but not all), but SNES isnt anywhere near playable.

 

[declaration]

i can already do 172mhx without overclocking. I know i should be happy, but i want more!!

 

[PeDRoRist]

Well, mod it and see for yourself!

 

[Don Miguel]

good work, dude!

 

[shotaway]

well done....oh and +1 post count....(sorry)

 

[Klown]

How long do the batterys last on it?