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2007-11-19
, 21:47
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Posts: 880 |
Thanked: 264 times |
Joined on Feb 2007
@ Cambridge, UK
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#2
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sounds like a great plan. I too will offer US$10 bounty for the ability to over and underclock the N770, on the fly, with no reboot required.
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2007-11-19
, 22:26
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Posts: 550 |
Thanked: 110 times |
Joined on Aug 2006
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#3
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I would be willing to offer a bounty for a system tray applet to over and underclock the processor in my n800 on OS 2007/OS 2008.
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2007-11-19
, 23:03
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Posts: 10 |
Thanked: 1 time |
Joined on Nov 2007
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#4
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Hey, get your own thread. This is the N770 board! 
Originally Posted by Rocketman
-J
I would be willing to offer a bounty for a system tray applet to over and underclock the processor in my n800 on OS 2007/OS 2008.
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2007-11-25
, 23:06
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Posts: 7 |
Thanked: 1 time |
Joined on Aug 2007
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#5
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I'll also paypal $10 to overclock my 770
iain
iain
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2007-11-25
, 23:51
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Posts: 529 |
Thanked: 46 times |
Joined on Sep 2007
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#6
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Originally Posted by iainjh
Ok.
I'll also paypal $10 to overclock my 770
iain
It makes sense.
But any such assembler code utility should be provided by TI to developers if available any.
Darius
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2007-11-26
, 19:05
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Posts: 2,152 |
Thanked: 1,490 times |
Joined on Jan 2006
@ Czech Republic
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#7
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770 is already kind of overclocked, it runs OMAP 1710 at 252Mhz, normal is 220 see http://focus.ti.com/general/docs/wtb...contentId=4670
Nokia gets speed-sorted chips so they can use higher clock safely but there may not be enough room for further increase. Still it may be worth trying (for someone) but don't expect miracles and do expect problems.
As for underclocking 770, this was already discussed, search this forum. Don't expect significant battery savings, power management is already pretty good and OMAP 1710 cannot do voltage scaling (which gives most savings when underclocking)
Last edited by fanoush; 2007-11-26 at 19:13.
Nokia gets speed-sorted chips so they can use higher clock safely but there may not be enough room for further increase. Still it may be worth trying (for someone) but don't expect miracles and do expect problems.
As for underclocking 770, this was already discussed, search this forum. Don't expect significant battery savings, power management is already pretty good and OMAP 1710 cannot do voltage scaling (which gives most savings when underclocking)
__________________
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Newbies click here before posting. Thanks.
If you really need to PM me with troubleshooting question please consider posting it to the forum instead. It is OK to PM me a link to such post then. Thank you.
Last edited by fanoush; 2007-11-26 at 19:13.
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2007-11-26
, 21:24
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Posts: 529 |
Thanked: 46 times |
Joined on Sep 2007
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#8
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Originally Posted by fanoush
You are right.
770 is already kind of overclocked, it runs OMAP 1710 at 252Mhz, normal is 220 see http://focus.ti.com/general/docs/wtb...contentId=4670
Nokia gets speed-sorted chips so they can use higher clock safely but there may not be enough room for further increase. Still it may be worth trying (for someone) but don't expect miracles and do expect problems.
As for underclocking 770, this was already discussed, search this forum. Don't expect significant battery savings, power management is already pretty good and OMAP 1710 cannot do voltage scaling (which gives most savings when underclocking)
"
ARM926TEJ core subsystem
* Up to 220 MHz ARM926TEJ V5 architecture (maximum frequency)
* 32KB I-cache; 16KB D-cache
* Java acceleration
^^^^^^^^^^^
"
So maximum is not maximum yet.
How die Nokia overclock OMAP 1710 anyway ?
What about running Java applications on N770 (Java acceleration) ?
Darius
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2007-11-26
, 21:36
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Posts: 529 |
Thanked: 46 times |
Joined on Sep 2007
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#9
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Omap overclocking for Windows Mobile
What about porting OmapClock to maemo ?
http://www.blackjackusers.com/forum/...ab4f7649c5638e
http://www.nicque.com/PQz/
OmapClock.exe
OmapClockPlus.exe
http://forum.xda-developers.com/showthread.php?t=271012
File Type: cab omapclock_and_omapclockplusv0.0.4.cab (13.2 KB, 15690 views)
File Type: zip OmapClock & omapclockplus manual installation.zip (13.4 KB, 4244 views)
File Type: zip OmapClockRemover.zip (4.8 KB, 2424 views)
File Type: zip OmapClockPlus_Wm_Smartphone.zip (4.3 KB, 3224 views)
http://www.nicque.com/PQz/OmapClockPlus.htm
What about porting OmapClock to maemo ?
http://www.blackjackusers.com/forum/...ab4f7649c5638e
http://www.nicque.com/PQz/
OmapClock.exe
OmapClockPlus.exe
http://forum.xda-developers.com/showthread.php?t=271012
File Type: cab omapclock_and_omapclockplusv0.0.4.cab (13.2 KB, 15690 views)
File Type: zip OmapClock & omapclockplus manual installation.zip (13.4 KB, 4244 views)
File Type: zip OmapClockRemover.zip (4.8 KB, 2424 views)
File Type: zip OmapClockPlus_Wm_Smartphone.zip (4.3 KB, 3224 views)
http://www.nicque.com/PQz/OmapClockPlus.htm
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2007-11-26
, 23:45
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Posts: 2,102 |
Thanked: 1,309 times |
Joined on Sep 2006
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#10
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Presumably there's something in the kernel source that will show us how the speed change has been made for the N800.
I didn't realise the 770 had Jazelle acceleration.
Search for Jazelle on the maemo-developers list. I've got some more info to add to all that, need to summarise it and send a post to the list.
What about running Java applications on N770 (Java acceleration) ?
Search for Jazelle on the maemo-developers list. I've got some more info to add to all that, need to summarise it and send a post to the list.
I'd like to offer and hope that others join me in offering a bounty to the first person that figures out how to overclock the N770 safely.
I love my tablet but would love for it to just be a bit faster and having seen the same processor overclocked on Windows Mobile OSs know that the processor can handle a 35-50% overclock. 282Mhz anyone?
So, I offer a $10 bounty via PayPal to anyone that can show me how to overclock the device without having to open the device or muck with the hardware.
-Josh