Decreased overclock frequency options with firmware upgrade

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Hatsuwr
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Joined: 25 Sep 2020
Posts: 5

PostPosted: Fri Sep 25, 2020 17:00    Post subject: Decreased overclock frequency options with firmware upgrade Reply with quote
Hi all,

I have an R6300v2 which I just upgraded to 44340. Working great, but I noticed the overclock frequencies are limited to 600 or 800 MHz, while my old firmware (unfortunately misplaced exact version, but it was from 2015) allowed speeds up to 1600 MHz.

Just for fun, I'd previously improved the cooling capabilities and added a small fan, and I was hoping to test these higher frequencies with the new firmware.

Apologies if this information is elsewhere, but I could not find it. Is there a new-ish firmware which will allow those higher frequencies? Or, is it possible to enable them myself somehow?

Thank you for any info!
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blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 4360

PostPosted: Fri Sep 25, 2020 17:11    Post subject: Reply with quote
Well, probably can bypass it via CLI but keep in mind this limitation very likely is to safeguard the router from yourself.

It doesn't scale well, can and will easily fry. I'm thinking there might be adverse effects at higher clocks, USB for example.


Last edited by blkt on Fri Sep 25, 2020 17:16; edited 1 time in total
Hatsuwr
DD-WRT Novice


Joined: 25 Sep 2020
Posts: 5

PostPosted: Fri Sep 25, 2020 17:16    Post subject: Reply with quote
blkt wrote:
Well, probably you can bypass it via command line but keep in mind this limitation very likely is to safeguard the router from yourself. It doesn't scale well, can and will easily fry.


I was previously running at 1200 MHz long term with no issues. Was a bit hesitant to up that to 1600 haha.

Interestingly, when testing with the 600/800 options, I realized that I was getting throughput consistent with 1200 MHz until I manually set those. I'm guessing that even though I reset before/after upgrading firmware, the frequency was unchanged.

I've been trying with the command line, but no luck. Do you happen to know the proper command, or know of a good reference for them? What I've found so far hasn't been working.

*edit* Nevermind, tried again after a reset and it works. For anyone else that might need it: nvram set clkfreq #
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 4360

PostPosted: Fri Sep 25, 2020 17:22    Post subject: Reply with quote
Ah you found it, I was about to say try "nvram get clkfreq" to see current values as I don't have your router.

https://www.reddit.com/r/overclocking/comments/c75cbo/i_overclocked_my_router/

https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1055202

https://wikidevi.wi-cat.ru/Netgear_R6300_v2
Hatsuwr
DD-WRT Novice


Joined: 25 Sep 2020
Posts: 5

PostPosted: Fri Sep 25, 2020 18:10    Post subject: Reply with quote
blkt wrote:
Ah you found it, I was about to say try "nvram get clkfreq" to see current values as I don't have your router.

https://www.reddit.com/r/overclocking/comments/c75cbo/i_overclocked_my_router/

https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1055202

https://wikidevi.wi-cat.ru/Netgear_R6300_v2


That Reddit post is mine haha.

So at 600 MHz I get about 259 Mbps when testing throughput with iPerf. At 1000 MHz I get around 357 Mbps. Pretty decent improvement, although I was expecting to get closer to 1G speeds. Not sure what that is all about!
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 4360

PostPosted: Fri Sep 25, 2020 19:00    Post subject: Reply with quote
For more accurate results do not run iperf3 on the router, but on two external devices.

As examples, use two wired computers or one Ethernet and one wireless.

Alternatively, get R7800 or R9000 and call it day. =)
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