So i recently got a ti-89 titanium found it for 30 dollars used and the previous owner still had some files on it (might post more about it later)

I have some information on my mycalcs page (you should sign up and get an account, it’s free) (still cant upload images yet… my vpn is not working, but I’ll be able to do it when i get back to the us tomorrow. And upload my ti-basic game! )

Ok, back to the main topic.

So it’s in very good condition and all, but i read on ticalcs.org (i think) that you’re able to overclock it. There was a link to the richfiles about it, but I’m pretty sure that was for the ti-89, not the ti-89 titanium, because the images looked different (the back of the calculator had a different shape)

So I looked around on these cemetech forums, and I didn’t find anything related to overclocking the ti-89 titanium, (the search bar doesn’t work for me? ) if anybody still has a link to an old post then just reply to this, or just any more information, including YouTube videos because ill be back to the us soon.[url]

Hi. Yes, there are resources for overclocking the 89T.
Google leads me to DrDnar's https://www.cemetech.net/forum/viewtopic.php?p=292631#292631 post, and the https://ti-pla.net/t24800 cross-post. I think that's what you're looking for

Ok, thanks for the help.

Is there a method for overlocking the 89ti without using a pencil? like just changing the resistor itself? i have decent soldering skills, would there be any problems?

also what resistance should it be

Aside from the obvious risk of damaging the nearby capacitors, if you have surface-mount resistors that fit the pads, sure, change the resistor. Trying to put a through-hole resistor in there may cause problems. For one thing, it might vibrate loose and tear the pads off with it, and that'll be a huge PITA to fix. Additionally, the longer the leads, the greater the chance of getting glitches from electromagnetic interference.

The resistor 'should' be the factory-default value. In theory, frequency is inversely proportional to resistance, so half the resistance gets twice the frequency. But I'd suggest experimentally identifying the resistance you want by using a pencil, seeing what speed you get, and measuring with a multimeter.