35 replies to this topic

[DrDigitized2]

Ok Thanks. That helps alot. If I am understanding you guys right then changing the voltage is the last step and may not be required to get the performance I want. Also when and if I do change my voltages I should only change it by the smallest amount and then run a stress test to see if it helps. And while I am doing that I should keep an eye on my heat generation.

[Black64]

You got it!

[Psywar]

Ok Thanks. That helps alot. If I am understanding you guys right then changing the voltage is the last step and may not be required to get the performance I want. Also when and if I do change my voltages I should only change it by the smallest amount and then run a stress test to see if it helps. And while I am doing that I should keep an eye on my heat generation.

[sticknstone]

Memory Timings:

This is how fast data moves in and out of your RAM.
The Lower the Memory Timing the less Latency you will have, meaning the quicker your data can travel in and out of the RAM.
When Overclocking your FSB you can sometimes get an Overclock Stable by increasing the Latency on your RAM/Memory Timings Table.

Overclocking memory will involve increases to the bus bandwith or the decreasing of the clock cycles required to operate the ram.
The main memory system performance increase will be observed from the increasing of the bus bandwith. Increasing bus bandwith can be achieved by increasing the bclk or Bus Speed Memory Ratio (Memory Multiplier). Increasing the bclk will affect all the system components which use the bclk (cpu speed, memory speed, hyper thread link speed, northbridge link speed....) By increasing the Bus Speed Memory Ratio (Memory Multiplier) the effect is only noticed on the memory speed.
Minor memory system performance increases will be observed from lowering timings of the memory. Modern memory modules which use a SPD feature have the timings the module is capable of running at for various memory speeds stored on the module. Setting the memory speed to auto and the memory timings to auto will allow the bios to access the data on the module and set the parameters in bios accordingly. A simple method to setting lower memory timings is to set the Bus Speed Memory Ratio (Memory Multiplier) to the desired timings and the memory timings to auto, then set the memory timings to manual and return the Bus Speed Memory Ratio (Memory Multiplier) to the previous setting which was being overclocked. For example with 800MHz DDR2 modules when the memory speed is 733MHz, 800MHz or 860MHz to achieve lower timings set the Bus Speed Memory Ratio (Memory Multiplier) to 3.33x and the memory timings to auto, next set the memory timings to manual and return the Bus Speed Memory Ratio (Memory Multiplier) to the previous setting.

[Braegnok]

Memory Timings:

This is how fast data moves in and out of your RAM.
The Lower the Memory Timing the less Latency you will have, meaning the quicker your data can travel in and out of the RAM.
When Overclocking your FSB you can sometimes get an Overclock Stable by increasing the Latency on your RAM/Memory Timings Table.

Overclocking memory will involve increases to the bus bandwith or the decreasing of the clock cycles required to operate the ram.
The main memory system performance increase will be observed from the increasing of the bus bandwith. Increasing bus bandwith can be achieved by increasing the bclk or Bus Speed Memory Ratio (Memory Multiplier). Increasing the bclk will affect all the system components which use the bclk (cpu speed, memory speed, hyper thread link speed, northbridge link speed....) By increasing the Bus Speed Memory Ratio (Memory Multiplier) the effect is only noticed on the memory speed.
Minor memory system performance increases will be observed from lowering timings of the memory. Modern memory modules which use a SPD feature have the timings the module is capable of running at for various memory speeds stored on the module. Setting the memory speed to auto and the memory timings to auto will allow the bios to access the data on the module and set the parameters in bios accordingly. A simple method to setting lower memory timings is to set the Bus Speed Memory Ratio (Memory Multiplier) to the desired timings and the memory timings to auto, then set the memory timings to manual and return the Bus Speed Memory Ratio (Memory Multiplier) to the previous setting which was being overclocked. For example with 800MHz DDR2 modules when the memory speed is 733MHz, 800MHz or 860MHz to achieve lower timings set the Bus Speed Memory Ratio (Memory Multiplier) to 3.33x and the memory timings to auto, next set the memory timings to manual and return the Bus Speed Memory Ratio (Memory Multiplier) to the previous setting.

[Braegnok]

Hello, I have a question about memory timings. Say on a Q6600 with DDR2 800 memory, the stock CPU frequency is 266 MHz X9 @ 2.4 GHz. And I change CPU frequency to 333 MHz X9 @ 3.0 GHz which is a mild overclock, The DRAM Frequency can be changed to 667 MHz which lowers the timings to 4-4-4-12 2T and runs FSB : DRAM 1:1 @ 333.7 MHz. Or I can set @ 800 MHz timings go to stock 5-5-5-18 2T FSB : DRAM 2 : 3 @ 400 MHz The system seems to overclock higher and remain stable when I keep the FSB : DRAM ratio @ 1 : 1 , but to do so I need to lower DRAM Frequency. Which setting would you suggest. And is there any software that monitors memory temp.
Thank You

[sticknstone]

Which setting would you suggest. And is there any software that monitors memory temp.
Thank You

I would suggest the setting that bench higher and are stable.
I am unaware of a pc ddr module which output its temp data.

[Braegnok]

I would suggest the setting that bench higher and are stable.
I am unaware of a pc ddr module which output its temp data.

Thank You, Sticknston; for the reply. And I agree the best setting is the lower frequency with 1:1 ratio. My motherboard has 3 on board temp. probes, I can attach one of them to the memory.

[reilentless]

Thank You, Sticknston; for the reply. And I agree the best setting is the lower frequency with 1:1 ratio. My motherboard has 3 on board temp. probes, I can attach one of them to the memory.

I'm having problems trying to get 1:1 ratio with the X58 i7-960... I used to have a Core2 E8500 and had it on 1:1, however the method to OC an i7 is different, any suggestions?

[edda0199]

I'm having problems trying to get 1:1 ratio with the X58 i7-960... I used to have a Core2 E8500 and had it on 1:1, however the method to OC an i7 is different, any suggestions?

[vuki4]

i have a question

can i overclock my i3 2120 3.3 to about 3.5 ghz,with a standard cpu cooler?

help plzz

Edited by vuki4, 15 January 2013 - 12:22 PM.

[EuroFight]

i3s have locked clock multiplier which makes them much more difficult to overclock, as you have to alter FSB speed, which also adjusts other component speeds and timings. Also,  it is not recommended to overclock a processor with the stock cooler as they are generally designed to cope with the TDP (thermal design power) at stock frequency. It is recommended you upgrade your cooler before attempting to overclock.

Edited by EuroFight, 15 January 2013 - 12:54 PM.