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Title: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: Mich^ on January 25, 2014, 10:18:49 PM Hi Guys,
I'm not sure if this works for everyone and if this is posted before but i found a way to get around 30 to 40 khas more for each gpu i have. I have an ASRock extreme 4 motherboard and with the ASRock tool AXTU i changed the PCIE frequency from the motherboard to 95 MHz. And this gave 35 khash/s more!!! Pic with the normal 100MHz: http://michielvanaalst.nl/tnet/100.png Pic with the 95 MHz: http://michielvanaalst.nl/tnet/95.png Title: Re: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: MadMatt on January 25, 2014, 10:26:56 PM Anyone else try this? I think I'll give it a go
Edit: EasyTune for Gigabyte MB's doesn't let you change PCIe frequency, only cpu frequency :/ Title: Re: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: Burninj on January 25, 2014, 10:55:45 PM if that's true this is really cool ^^
Title: Re: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: Wipeout2097 on January 25, 2014, 10:59:58 PM Very good find! Latency, latency, latency. Did you also disable everything not relevant for mining, including audio and firewire?
Is that an Asrock 970 or other model? Title: Re: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: MACROMOLECULE on January 25, 2014, 11:59:06 PM i tried it and couldnt get it to work. i too have the asrock z77 extreme 4
Title: Re: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: Mich^ on January 26, 2014, 11:21:53 AM i tried it and couldnt get it to work. i too have the asrock z77 extreme 4 I have this motherboard as weel. Together with an Intel Core i5 3570K. But its not so stable as I first thought, after a few hours the hash rate drops down to +-500. I'm now testing with 97Mhz. This give me still a small 20khas/s more. Title: Re: Changing PCIE frequency gives an extra 30 KHash/s for free !!!!!! Post by: mac-coin on January 26, 2014, 11:45:31 AM Hi
I've just tried this on a asrock 970 Extreme3 R2.0 motherboard and after a 30min test, I got about 1-2 kh/s more. So without doing a 12 hour test I would say there was no change. |