Omnimaga

Omnimaga => News => Topic started by: critor on August 12, 2013, 08:57:22 pm

Title: Nover 3: boost your Nspire with the automatic overclocker
Post by: critor on August 12, 2013, 08:57:22 pm
Do you think that your Nspire is too slow? It was possible to boost it through an overclock with our Nover 2 (http://tiplanet.org/forum/viewtopic.php?t=10174) tool.

Overclocking means increasing the chips frequency.
It has been used by Texas Instruments on TI-Nspire Clickpad/TouchPad, as the initial processor frequency was 90MHz and has been increased to 120MHz since OS version 2.1, giving a performance boost of 33,3%.


Nover was allowing you:
(http://i43.servimg.com/u/f43/13/23/13/53/nover410.png)



On TI-Nspire ClickPad/TouchPad, it was really easy: you just had to put all frequencies to the maximum and it worked directly! ;D(http://www.omnimaga.org/Themes/default/images/gpbp_arrow_up.gif)

On TI-Nspire CX/CM, it was something else since the maximum processor frequency of 378MHz is unstable, and according to reviews and tests on different calculators, the maximum stable frequency is between 220 and 240MHz. You had thus to follow a tutorial (http://tiplanet.org/forum/viewtopic.php?f=15&t=9014) in order to determine the highest stable frequency.



The new Nover 3 version tonight thus has great improvements - as you don't even need to follow the tutorial anymore, nor to know anything about overclocking. :)
And thus, Nover 3 seeks the best stable overclocking for your calculator by itself! ;D(http://www.omnimaga.org/Themes/default/images/gpbp_arrow_up.gif)
You just have to put it in the Ndless startup folder, reboot your calculator and after a few minutes the best overclock configuration is detected and saved ! :D

The automated search follows the tutorial steps, using the safest seeking-way. Your calculator may reboot or freeze while doing the automated search, and it's normal since the program tests if the current configuration is stable. Those (two at least) crashes on TI-Nspire CX/CM happen in a non-critical code zone. When freezing, you only have to reboot the calculator and the process will go on.



Here you can see a TI-Nspire CM Chinese Edition EVT1 prototype, with Nover 3 boosting the frequency from 132 to 234MHz, meaning a 77.2% performance boost! ;D(http://www.omnimaga.org/Themes/default/images/gpbp_arrow_up.gif)
The installation process made only two freezes, thus needing 3 reboots before opting for the 234MHz.


(http://tiplanet.org/forum/gallery/image.php?mode=thumbnail&image_id=2812) (http://tiplanet.org/forum/gallery/image_page.php?image_id=2812)
Here are some statistics with the frequencies automatically set by Nover 3 installation on some TI-Nspire CX/CM I've gathered for you:
Feel free to complete those statistics by answering in the topic.




Download:
Nover 3 (http://tiplanet.org/forum/archives_voir.php?id=19595)

Source:
http://tiplanet.org/forum/viewtopic.php?t=12832&lang=en
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: TIfanx1999 on August 12, 2013, 09:10:31 pm
Nice work as always. This is good, as the user doesn't have to worry about messing with settings and causing issues. :)
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: critor on August 12, 2013, 09:20:52 pm
Thanks :)


You can still mess with the settings if you want to as no feature has been removed.

If you don't want Nover 3 to automatically set the overclock, you just need to run it after sending it to the calculator and to set & store your own overclock.
Indeed, the automatic overclocking process is triggered on startup only if the config file is missing.

And even if Nover did set the overclock automatically, you can still modify the settings it chose (for example increasing/decreasing the base frequency by one step) by just running it.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: DJ Omnimaga on August 13, 2013, 03:04:48 am
Wow nice :D, also I'm glad you let the option to manually choose our settings in case we had one setting that worked fine with certain programs and that we want to use it.

But still, at least there should be less risks of bricking our calc.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: aeTIos on August 13, 2013, 06:26:41 am
I always have my calc running at 230-something MHz, never had issues.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Wayne on August 13, 2013, 07:03:42 am
Is there a battery saver option? Bazinga :D
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: ExtendeD on August 13, 2013, 07:35:29 am
Nice update critor :)
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Wayne on August 13, 2013, 07:44:30 am
I am wondering what will happen if I try nover 3 in the emulator?!
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: critor on August 13, 2013, 11:44:29 am
@Wayne -> On the emulator it will reach 378MHz, bon you won't really notice a boost in the performance.
But it works the other way - if you downclock the cpu it really runs slower ;)

Is there a battery saver option? Bazinga :D
You can downclock to save battery, yes. But I have no statistics about that.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Streetwalrus on August 13, 2013, 08:46:20 pm
I'm running my CX at 246 MHz with Nover 2 and it's stable. The battery lasts long enough too. :thumbsup:
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: AlexisVieira on August 14, 2013, 11:00:21 am
This has been tested on the B/W nspires?
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: critor on August 14, 2013, 11:41:03 am
Yes, but there is nothing new useful on B/W Nspires, as you can simply set all frequencies to the maximum on those models.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: AlexisVieira on August 14, 2013, 01:30:48 pm
Yes, but there is nothing new useful on B/W Nspires, as you can simply set all frequencies to the maximum on those models.

humm. very well. ty
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: kevinkore3 on August 17, 2013, 11:05:19 am
Does AHB frequency affect performance?
Does base frequency affect performace?
Just curious.
I can do 252MHz CPU+63MHz AHB without resetting, or 198MHz CPU+66MHz AHB.
By the way, is 252MHz safe even if it doesn't reset?
I have a CX CAS.
Sorry if I asked too many questions.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Lionel Debroux on August 17, 2013, 11:24:29 am
Quote
Does AHB frequency affect performance?
Does base frequency affect performance?
Both do.

Quote
By the way, is 252MHz safe even if it doesn't reset?
More so than 69 MHz AHB, at least.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: critor on August 17, 2013, 12:28:36 pm
There is no way just in some minutes to perfectly prove that a config is stable/safe.
You have to use your calculator normally for several days/weeks and check if it does crash or not.

Buf if Nover3 did set your CPU to 252MHz, then it means that it did crash at 264MHz but did pass the little test at 258MHz.

As the test is not perfectly reliable, it uses a safe margin and only sets the CPU to 252MHz which should be almost stable/safe.
Your calculator might even be able to work perfectly at 258MHz.
If it is not completely stable at 252MHz, then 246MHz will probably be ok :)


And congratulations for reaching such a high frequency I couldn't get on my units! :D
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: binly on August 17, 2013, 03:01:46 pm
I actually got 260MHz working, but then for some Lua games it would crash on my CX CAS. But wow was it fast xD
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: kevinkore3 on August 18, 2013, 12:52:49 pm
How safe is 70MHz AHB anyway? I know AHB is dangerous, but overclocking in general is.
I'm trying to reduce the lag on GBA roms :P
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Lionel Debroux on August 18, 2013, 12:57:44 pm
Quote
How safe is 70MHz AHB anyway?
Not. NAND Flash memory corruption occurs quickly with AHB at 72 MHz, less so with AHB at 69 MHz. On the CX series, the AHB should simply never be overclocked when NAND operations are involved ;)
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Kynis on September 08, 2013, 02:08:09 pm
Hi, I'm kind of new in using TI hardware, but is there some kind of unique variation between identical models of these calculators, or do the warnings in nover vary?

I've seen my friend follow a video where a guy clocks the CX CAS to: CPU 222MHz, ADB 74MHz
No problem.

But when I try to clock it I get a warning about the ADB being too high.
The best I've got was: CPU 198MHz, ADB 066MHz

Haven't tried it (in case if it's a software error)
However, if I try to clock it to 198, 066 will I get a brick worth of 154€?
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Lionel Debroux on September 08, 2013, 02:33:39 pm
74 MHz is an area of definite memory corruption, which requires reformatting the filesystem through the (built-in) maintenance menu. Just don't overclock the AHB, there's too little headroom.
198 MHz is alright.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: critor on September 08, 2013, 02:55:44 pm
Note that with an AHB slightly over 66MHz, the memory corruption is progressive.
So yes in the video for some seonds, 78MHz AHB will seem to work perfectly.

But the result will be the same, a full reformat some days/weeks later.
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Streetwalrus on September 08, 2013, 04:22:50 pm
Hi, I'm kind of new in using TI hardware, but is there some kind of unique variation between identical models of these calculators, or do the warnings in nover vary?

I've seen my friend follow a video where a guy clocks the CX CAS to: CPU 222MHz, ADB 74MHz
No problem.

But when I try to clock it I get a warning about the ADB being too high.
The best I've got was: CPU 198MHz, ADB 066MHz

Haven't tried it (in case if it's a software error)
However, if I try to clock it to 198, 066 will I get a brick worth of 154€?

BTW, ADB = Android Debug Bridge. :trollface:
Title: Re: Nover 3: boost your Nspire with the automatic overclocker
Post by: Jaredchin on September 07, 2018, 03:22:41 pm
I tried this and my calculator broke, didn't overclock into the "dangerous" numbers. Just tried it, restarted it and it's forever stuck on the clock... My pc doesn't recognize it anymore so no reinstall of the software... Thing's dead :banghead: