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What frequency is my RAM running at? - Page 2

post #11 of 21
Technically speaking, the RAM is running at 771 MHz.

Double data rate means that it's "effectively" running 2 * 771 = 1542 MHz equivalent of single data rate. But the actual memory bus speed is 771 MHz. The 1600 MHz "effective" speed is all a marketing gimmick to impress us with bigger numbers.
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post #12 of 21
Quote:
Originally Posted by wontonforevuh View Post
how do i tighten the timings?
the kit i have is this
http://www.newegg.com/Product/Produc...82E16820231335

Brand G.SKILL
Series PI Series
Model F3-12800CL7T-6GBPI
Type 240-Pin DDR3 SDRAM
Tech Spec
Capacity 6GB (3 x 2GB)
Speed DDR3 1600 (PC3 12800)
Cas Latency 7
Timing 7-8-7-24-2N
Voltage 1.5V

ECC No
Buffered/Registered Unbuffered
Multi-channel Kit Triple Channel Kit
Heat Spreader Yes
Manufacturer Warranty
Parts Lifetime limited
Labor

Go into bios and plug in those numbers. If those numbers don't make sense go read the mem overclocking sticky.
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post #13 of 21
Yeah in your bios there should be a menu called DRAM Settings Or something like that, the first 4 from the top is the ones you want to set.
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post #14 of 21
Your RAM speed is determined by the settings in your BIOS. I can see that your Memory Frequency is set at a 2:8 ratio. So, your RAM frequency = 8 x Base Clock. The frequency can vary a little bit, but I'm guessing your Base Clock is set at 191.

Also, as Dave has suggested, manually set those memory timings in your BIOS.
.
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post #15 of 21
Quote:
Originally Posted by wontonforevuh View Post
Yea I don't know anything about ram. I need some help. This is for my G.Skill PI Series 6gb 1600mhz

1542MHz.

RAM is based on your BCLK and your RAM Ratio, so you need 200 BCLK with the 2:8 ratio to attain 1600MHz - it doesn't just default to 1600MHz and run at that no matter what you put through it.

I'm guessing you're using the 21x multi on the 930 with turbo disabled?

If so, and you wanted higher RAM speeds (which wouldn't make a difference) you could always up the BCLK to 200 and run the CPU at 4.2GHz, which might make a difference, or you could just suck it up

Nothing to worry about
Quote:
Originally Posted by B-Con View Post
Your RAM speed is determined by the settings in your BIOS. I can see that your Memory Frequency is set at a 2:8 ratio. So, your RAM frequency = 8 x Base Clock. The frequency can vary a little bit, but I'm guessing your Base Clock is set at 191.

Also, as Dave has suggested, manually set those memory timings in your BIOS.
.
Exactly... +
    
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post #16 of 21
Thread Starter 
Quote:
Originally Posted by dave12 View Post
Brand G.SKILL
Series PI Series
Model F3-12800CL7T-6GBPI
Type 240-Pin DDR3 SDRAM
Tech Spec
Capacity 6GB (3 x 2GB)
Speed DDR3 1600 (PC3 12800)
Cas Latency 7
Timing 7-8-7-24-2N
Voltage 1.5V

ECC No
Buffered/Registered Unbuffered
Multi-channel Kit Triple Channel Kit
Heat Spreader Yes
Manufacturer Warranty
Parts Lifetime limited
Labor

Go into bios and plug in those numbers. If those numbers don't make sense go read the mem overclocking sticky.
is the voltage in bold mean vDimm/DRAM Bus Voltage? cuz my vdimm is set to 1.66 atm

I set the timings to 7-8-7-24
i also set it to 2N which is further down the settings in the bios

Also, shouldnt I be loosening the timings if I'm overclocking? Won't tightening the timings cause instability if I already got my overclock stable?
Edited by wontonforevuh - 6/8/10 at 12:39pm
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post #17 of 21
Yes, the DRAM Bus Voltage is the correct one. The memory is rated to run at 1600 MHz, with the 7-8-7-24-2N timings, and at a voltage of 1.5V. I most cases, you will only need to increase your RAM voltage if you are increasing the RAM speed/frequency above 1600 MHz.

And, since your memory is rated at the above timings, this shouldn't cause any instability. Although, each memory module is slightly different, and the only way to know for sure is to stress test it.
.
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post #18 of 21
Quote:
Originally Posted by wontonforevuh View Post
is the voltage in bold mean vDimm/DRAM Bus Voltage? cuz my vdimm is set to 1.66 atm

I set the timings to 7-8-7-24
i also set it to 2N which is further down the settings in the bios

Also, shouldnt I be loosening the timings if I'm overclocking? Won't tightening the timings cause instability if I already got my overclock stable?
If your running 1.66v you'll prob get it tighter, its 7-8-7-24 at 1.5v. Your not overclocking it, its 1600 and your running it at 1540.
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post #19 of 21
Thread Starter 
Quote:
Originally Posted by Darren9 View Post
If your running 1.66v you'll prob get it tighter, its 7-8-7-24 at 1.5v. Your not overclocking it, its 1600 and your running it at 1540.
How do you increase the frequency then from 1540. By increasing BCLK for the cpu?
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post #20 of 21
You probably won't notice a difference from 1540 to 1600, but I do know how fun it is to play around with these things. So...

With SpeedStep and Turbo disabled, set your CPU Ratio to 20 and your BCLK to 200. That will give you 1600 MHz on your RAM and 4 GHz on your CPU. Then test to see if it's stable.
.
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