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en:xu4_ram_overclock [2017/05/23 12:05] joy.cho [Ubuntu Guide] |
en:xu4_ram_overclock [2017/05/23 18:24] (current) joy.cho [Ubuntu Guide] |
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| A new higher DDR frequency is now available on XU4 series.\\ | A new higher DDR frequency is now available on XU4 series.\\ | ||
| Both of Android and Ubuntu supports the frequency set,\\ | Both of Android and Ubuntu supports the frequency set,\\ | ||
| - | but only Android provides DRAM governor interface.\\ | + | and only Android provides DRAM governor interface.\\ |
| <WRAP center round important> | <WRAP center round important> | ||
| Line 34: | Line 34: | ||
| On kernel 4.9, you can change ddr frequency using boot.ini interface.\\ | On kernel 4.9, you can change ddr frequency using boot.ini interface.\\ | ||
| The available frequency set is **933MHz, 825MHz, 728MHz and 633MHz**\\ | The available frequency set is **933MHz, 825MHz, 728MHz and 633MHz**\\ | ||
| - | and default one is **825MHz**. | + | and the default one is **825MHz**.\\ |
| + | As we check the benchmark score using **mbw**, about 10% improvement can be expected. | ||
| === boot.ini === | === boot.ini === | ||
| Please find **ddr_freq** in boot.ini and change the value. | Please find **ddr_freq** in boot.ini and change the value. | ||
| Line 48: | Line 48: | ||
| dmc ${ddr_freq} | dmc ${ddr_freq} | ||
| ... | ... | ||
| + | </code> | ||
| + | And then please make sure to reboot the system. | ||
| + | <code> | ||
| + | # sudo reboot | ||
| </code> | </code> | ||
