Ivy Bridge Overclocking Guide - Air, Eau, LN2
Publié par Steven Bassiri le 26.04.12Page:
Memory
Overclocking on Ivy Bridge is extremely easy to do. You have to overclock with
the memory multiplier along with the base clock, best set at 100.00 MHz for air
OC. If you want more fine gradual increases you might try increasing the base
clock.
The Z77 Chipset provides the memory multipliers of: 10.66x, 13.33x, 14.00x, 16.00x, 18.00x, 18.66x, 20.00x, 21.33x, 22.00x, 24.00x, 26.00x, 26.66x, 28.00x, 29.33x, 30.00, and 32.00x. All of which this board provides. If you want high frequency it is best to use the 28.00x multiplier for speeds above 2800 MHz with slight BCLK increase.
Below is some very crappy Hynix, but it can do very high speeds on this platform:
The reason I show you such an uneventful score is because of the fact that the memory I used is rated DDR3 2000MHz Cas 9 T2 and this was done on a very easy BIOS and i took less than a few minutes. It just goes to show how easy Ivy Memory OC is.
The voltages you should change for high memory overclocking on Z77 on air is the DDR Voltage, and if you like you can try increasing the VCCIO(VTT) and VCCSA(IMC) the VCCIO (VTT) can help with memory OC, however you will also need to increase VCCSA along with it on these GIGABYTE Z77 boards (except on the Sniper M3). If you want to increase VTT you need to increase IMC voltage to within 0.005v below it, so 1.1v VTT would be 1.095v IMC on these GIGABYTE boards. However I didn't really need to change it much at all.
Memory timings are a bit trickier; you should use XMP and then loosen or tighten timings from there. However for Z77 GIGABYTE has tightened up most of the latencies involved to improve 2D efficiency, however this means that the max memory OC might not be as high as it can be, so below I am showing you how to loosen up all your memory timings for high clocks. The second timings are pretty much maximized, and the third timings start with TREFI, and the 3rd timings are what provide that increased efficiency here, and they are changed to 8, but at stock they are 3.
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The Z77 Chipset provides the memory multipliers of: 10.66x, 13.33x, 14.00x, 16.00x, 18.00x, 18.66x, 20.00x, 21.33x, 22.00x, 24.00x, 26.00x, 26.66x, 28.00x, 29.33x, 30.00, and 32.00x. All of which this board provides. If you want high frequency it is best to use the 28.00x multiplier for speeds above 2800 MHz with slight BCLK increase.
Below is some very crappy Hynix, but it can do very high speeds on this platform:
The reason I show you such an uneventful score is because of the fact that the memory I used is rated DDR3 2000MHz Cas 9 T2 and this was done on a very easy BIOS and i took less than a few minutes. It just goes to show how easy Ivy Memory OC is.
The voltages you should change for high memory overclocking on Z77 on air is the DDR Voltage, and if you like you can try increasing the VCCIO(VTT) and VCCSA(IMC) the VCCIO (VTT) can help with memory OC, however you will also need to increase VCCSA along with it on these GIGABYTE Z77 boards (except on the Sniper M3). If you want to increase VTT you need to increase IMC voltage to within 0.005v below it, so 1.1v VTT would be 1.095v IMC on these GIGABYTE boards. However I didn't really need to change it much at all.
Memory timings are a bit trickier; you should use XMP and then loosen or tighten timings from there. However for Z77 GIGABYTE has tightened up most of the latencies involved to improve 2D efficiency, however this means that the max memory OC might not be as high as it can be, so below I am showing you how to loosen up all your memory timings for high clocks. The second timings are pretty much maximized, and the third timings start with TREFI, and the 3rd timings are what provide that increased efficiency here, and they are changed to 8, but at stock they are 3.
Discuter de cet article sur le forum
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