AC68U OC on latest firmware

[Davev6]

Looked through the forum but was not able to find a straight answer.

What is the best way to OC AC68U on latest Merlin firmware?

Is there a guide?

Thank you

 

[adampk17]

I believe the answer is that you can’t.

 

[Wafflestyx]

Looked through the forum but was not able to find a straight answer.

What is the best way to OC AC68U on latest Merlin firmware?

Is there a guide?

Thank you

Might find something here https://www.snbforums.com/threads/overclocking-rt-ac68u.15235/

 

[tyspeed42]

Looked through the forum but was not able to find a straight answer.

What is the best way to OC AC68U on latest Merlin firmware?

Is there a guide?

Thank you

For use on AC68U, With the use of SSH through putty with your router ip, login as you would normally through your browser through putty.
When done. default clk should be 800,666 i beleive,
to check it type
nvram get clkfreq

set overclock rate
nvram setclkfreq=1000,800
nvram commit
reboot

check speed of router
cat /proc/cpuinfo

 

[clvk07]

not sure if mine is working. Followed the above commands but:

dmin@Asus:/tmp/home/root# nvram get clkfreq
1000,800
dmin@Asus:/tmp/home/root# cat /proc/cpuinfo
processor : 0
BogoMIPS : 100.00
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x42
CPU architecture: 8

frequency seems to have worked but bogo mips still 100

 

[Davev6]

Should be at default 1599 or 1998 if you OC up to 1000,800.

May need to NVRAM clear.

 

[Davev6]

What about moding CFE. Would that have a permanent effect? I've noticed that CPU and Mem go back to stock after reboot.

 

[roscoe211]

This is what you're looking for.. https://www.privateinternetaccess.c...-50-mb-throughput-on-pia-with-an-asus-rt-ac68

I'm 100% stable for months at 1200,800. 1400 was a no go.

echo "#!/bin/sh" > /jffs/scripts/init-start
echo "nvram set clkfreq=1200,800" >> /jffs/scripts/init-start
chmod 755 /jffs/scripts/init-start

echo "#!/bin/sh" > /jffs/scripts/services-stop
echo "nvram set clkfreq=1200,800" >> /jffs/scripts/services-stop
echo "nvram commit" >> /jffs/scripts/services-stop
chmod 755 /jffs/scripts/services-stop

 

[Wisiwyg]

I'm 100% stable for months at 1200,800.

Ditto..stable at 1200,800 for the last couple of years. Have a simple PC box fan on the back to keep it cool.

 

[Grisu]

What about moding CFE. Would that have a permanent effect? I've noticed that CPU and Mem go back to stock after reboot.

Since 382-firmwares you have to do it in cfe (without the need of any scripts or something else) as it will be reload cfe-values every few hours. Mine on 1200,800 for years with all firmwares.
First you need to be sure it will run with this clock otherwise you have a brick!

https://www.snbforums.com/threads/overclocking-on-rt-ac68u-with-384-7-not-working.49466/

 

[Davev6]

Is there a guide that explains how to OC using CFE?


BTW what CPU temps should I expect with OC at 1200/800 ?

 

[Grisu]

Is there a guide that explains how to OC using CFE?
BTW what CPU temps should I expect with OC at 1200/800 ?

Did you ever read it, its a short thread and everything in it!
First line for cfe as you can read in the two command lines (SSH or telnet to router first), please dont ask any more, only thing you can get that it that the link will be completely deleted like most others!
800->1200 about 5°C on mine from 70 to 75°, no problem upto 80, that should better not be exceeded.

 

[Davev6]

Ahh OK got it. Did not notice that those are the commands to set in CFE.

I will try the 1200/800 temporarily before I set in CFA

With 1000/800 CPU temps are at 76c

 

[Grisu]

you could reapply the heatsink inside, they are known to be bent a little bit in the middle range and have less or no contact to chips. Temps will go down below 70°C if done well.

Have a look here: https://www.snbforums.com/threads/high-temp-378-56.27731/page-2#post-212548

 

[martinr]

Looked through the forum but was not able to find a straight answer.

What is the best way to OC AC68U on latest Merlin firmware?

Is there a guide?

Thank you

Coincidentally:
https://www.snbforums.com/threads/decrease-in-throughput-after-overclock.55543/