Overclocking SC's GBA ram

meangreenie · August 15, 2006, 08:05:05 AM

I remember overclocking me old Nvidia 5900 fx card. With this card not only did I do the normal overclocking, but via a guide dumped the bios, and used hex-edit not only to hard set the overclocks on gpu and mem but also to tighten the memory timings and raise the gpu core voltage.

Does anyone think it's possible to overclock the gba ram by hex-editing an SC firmware ? maybe only a small overclock would be needed for GBA perfection ?

Any thoughts, or can anybody en-lighten me on this ?

sneef · August 15, 2006, 08:57:23 AM

as far as i know, the SC kernel is only an interface to conrol the loading of data.. I don't think the sc firmware directly controlls memory timings, etc..

[edit] and as far as voltages go, the SC is passive and draws its power from the DS's slot 2, or the cartridge slot on a GBA.

mikesinclair · August 15, 2006, 10:01:37 AM

http://wiki.pocketheaven.com/SupercardGBASlowdowns

Scroll to the bottom for slowdown fix. Someone on gbatemp said yoshi Island played perfectly.

I haven't tried it though

754boy · August 15, 2006, 10:07:01 AM

Quote from: "mikesinclair"http://wiki.pocketheaven.com/SupercardGBASlowdowns

Scroll to the bottom for slowdown fix. Someone on gbatemp said yoshi Island played perfectly.

I haven't tried it though

Gonna try it on Sword of Mana today and report back with results

RESULTS: Ha ha!! It works.....sweet!!! No more slowdown in SOM.

I wounder wat other games work with this method

meangreenie · August 15, 2006, 10:11:11 AM

^ @ mikesinclair .. yes that was me, but I had to edit once I got 4 or 5 levels in as there is some slow-down (lava monster bit) .. but the game on the whole is very playable with the "no reset/manual pre patch" method. Me and my son played into the 3rd world on it yesterday.

I think if the ram could be over-clocked ..latency timings, we might get it 100% perfect. I have tried looking at the firmware file in a hex-editor but I don't really know what to look for. I might do some reading tonight and see if I can make progress.. but i doubt I will due to my thickness

and the probable fact that it's not possible

sneef · August 15, 2006, 10:42:00 AM

the whole prefetch thing has been thoroughly covered though

moviecouple · August 15, 2006, 10:45:07 AM

So what did you guys use... Fastrestart, Prefetch, or both?

meangreenie · August 15, 2006, 12:20:19 PM

I'm guessing the fastest method is to turn off ..'restart patch' .. and only have 'enable save' and 'save patch' on (note you will have to double click the rom in the list to be able to find the 'enable save' option). Then drag and drop the rom on the pfpatch.exe to enable the pre-fretching speed up.

se here.. http://wiki.pocketheaven.com/SupercardGBASlowdowns

@sneef... what's new news to me is I didn't realise the pre-fetch patch is not applied when 'restart patch' is off

seam · August 16, 2006, 02:27:28 AM

Quote from: "mikesinclair"http://wiki.pocketheaven.com/SupercardGBASlowdowns

Scroll to the bottom for slowdown fix. Someone on gbatemp said yoshi Island played perfectly.

I haven't tried it though

ok, has anyone tested yoshis with this method??? id love to know if that is actually true... 754boy? someone test it out.

meangreenie · August 16, 2006, 05:42:17 AM

Are my posts invisible ?

Elfish · August 16, 2006, 05:47:28 AM

no i can read em :p

moviecouple · August 17, 2006, 10:35:30 AM

Well... I tried the Prefetch patch on Yoshi. It does get rid of "Some" of the slowdown but not all. The weird thing is that where there was no slowdown before, there is now. Don't think I'll be using the patch. The game only slows down in certain areas anyways. Easy enough to wade though for the benefit of using it on the Supercard Lite as, opposed to spending xxx dollars to buy the actual game.