Overclocking RT-AC56U

[tibere86]

I tried to change to 1G for CPU when the temp is 62C. always fail and then I need to do WPS 30/30/30 to get back to the router.

thanks

Weird. I have been running at 1GHZ ever since .35_2 was released without issue. I've never had any reboots or weird occurrences. My memory frequency is set to 666mhz. I have yet to try 800mhz memory frequency as there were issues identified with running at that speed in this thread. Anyone had any luck running the AC56U reliably at 1000/800?

 

[speedingcheetah]

Ive been running my AC56U for a few months now on 900,666.....temps only a few degrees higher....OpenVPN performance seems a tad better than stock speed.

 

[Sky1111]

I am still running at 1200/800 and it is perfectly stable.

 

[tibere86]

I am still running at 1200/800 and it is perfectly stable.

I have been running 1200/800 also since my last post without issue. I Dremeled out a large section of the back out, where the large red heatsink is, and temperatures are well below normal

 

[Lost Dog]

What stock temperatures are people seeing? I just set up my AC56u the other day and the room that it's in is between 68F and 70F (20C - 21C). According to the graph on the performance page my CPU floats between 69C and 70C (depending on the time of day and load).

No overclocking for me based on that temperature....

As of right now the overall picture is:

2.4 GHz: 48C
5 GHz: 53C
CPU: 70C

 

[L&LD]

In a small office with ambient temp around 25C - 30C an RT-AC56U with the 374.37 RMerlin firmware was running at 60C/60C/80C - I ran as fast as I could to connect a $10 USB fan to it and it is running (noisily) at 40C/40C/50C.

I feel much better. Even if it is meant to operate so warm.

I am tempted to O/C it: but this is not my router!

 

[eviltone]

Just got an AC56U

Just got my AC56U today....
Trying to Overclock, Getting into SSH with Putty.....

Typing
nvram set clkfreq=900,666
nvram commit

nvram get clkfreq
((returns 900,666))
reboot


After reboot -- the clock frequencies change back to stock.....
When i reboot, the nvram get clkfreq resets back to stock 800,533

 

[RMerlin]

Just got my AC56U today....
Trying to Overclock, Getting into SSH with Putty.....

Typing
nvram set clkfreq=900,666
nvram commit

nvram get clkfreq
((returns 900,666))
reboot


After reboot -- the clock frequencies change back to stock.....
When i reboot, the nvram get clkfreq resets back to stock 800,533

900 is not a valid clock rate, you have to use 1000.

 

[eviltone]

900 is not a valid clock rate, you have to use 1000.

I have now tried 1000,667
still resets back to 800,533....
DOH!!
Maybe they changed something recently?

 

[RMerlin]

I have now tried 1000,667
still resets back to 800,533....
DOH!!
Maybe they changed something recently?

Dunno, I don't overclock any of my routers. It's a possibility that a CFE update in recently sold devices might be causing this.

BTW, it should be 1000,666.

 

[RMerlin]

Here are the acceptable values, for those wondering:

static unsigned int cpu_clock_table[] = {600, 800, 1000, 1200, 1400, 1600};
static unsigned int ddr_clock_table[] = {333, 389, 400, 533, 666, 775, 800};

Setting any value that's not on this list will most likely result in your router reverting back to the 800,533 defaults.

 

[eviltone]

Here are the acceptable values, for those wondering:

static unsigned int cpu_clock_table[] = {600, 800, 1000, 1200, 1400, 1600};
static unsigned int ddr_clock_table[] = {333, 389, 400, 533, 666, 775, 800};

Setting any value that's not on this list will most likely result in your router reverting back to the 800,533 defaults.

Ahh Thnak you so much Rmerlin!! You rock, dude!!

EDIT: Saw this....
Bootloader (CFE) 1.0.2.3

after trying to set memory to anything other than 533 resulted in a reset to defaults....

 

[Sky1111]

Here are the acceptable values, for those wondering:

static unsigned int cpu_clock_table[] = {600, 800, 1000, 1200, 1400, 1600};
static unsigned int ddr_clock_table[] = {333, 389, 400, 533, 666, 775, 800};

Setting any value that's not on this list will most likely result in your router reverting back to the 800,533 defaults.

Devil is tempting me... 1400... 1600... POWER!!!

 

[RMerlin]

Devil is tempting me... 1400... 1600... POWER!!!

There was power in Fukushima too...

 

[AnthonyArmato]

Uh huh, tempting.

 

[AnthonyArmato]

Testing 1600,800,400 right now.

 

[Sky1111]

Testing 1600,800,400 right now.

Holy Mozes! You actually managed to boot with 1600MHz CPU clock???

Are you using liquid cooling?

 

[AnthonyArmato]

Not having any issues so far.

Current Temperatures: 124 °F - 129 °F

Not liquid cooled.

 

[RMerlin]

Not having any issues so far.

Current Temperatures: 124 °F - 129 °F

Not liquid cooled.

How are your Bogomips?

cat /proc/cpuinfo

 

[AnthonyArmato]

BogoMIPS : 299.82