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Ram timing confusion

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June 15, 2011 3:46:34 PM







http://www.newegg.ca/Product/Product.aspx?Item=N82E1682...


7-8-7-24 is a timing of this ram, however my asrock P67 extreme4 mobo automatically sets it at 9-9-9-24 in Bios.

I adjusted the value to 7-8-7-24 only to find out that my system won't boot. Voltage was automatically adjusted to 1.6v

This is really confusing. I was using P67 MSI GD65 mobo before, which set the voltage of rams to 1.4v.

I'm not sure how to interpret all these weirdness. Why doesn't my ram work under specified timing(7-8-7-24)? Why did two mobo set its voltages differently? How could I optimize my ram to work at 7-8-7-24 timing?

Your advice is greatly appreciated.








More about : ram timing confusion

a b } Memory
June 15, 2011 3:56:44 PM

What processor do you have?

The RAM clock is probably set too fast. Turn all your RAM settings to auto or default. Set the RAM speed to 1333 MHz (might be listed as 666 MHz on your BIOS). Then set your timings to 7-8-7-24. Try that.

Occasionally, when I mess with RAM clocks or timings, my next boot will fail but then the subsequent ones will be fine. It's just a single failed boot. So make sure you try it at least twice for each setting.
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June 15, 2011 3:59:15 PM








but why should I set my ram speed to 1333 when my ram is 1600 mhz as default?
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a b } Memory
June 15, 2011 4:03:43 PM

Your memory controller is probably only rated to 1333. The memory controller is integrated into your processor. That's why I asked what processor you have.

Just try it. :) 
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June 15, 2011 4:06:30 PM

I'm using 2600k.

I will give it a try. Thx! :D 
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a b } Memory
June 15, 2011 4:07:50 PM

Yup, memory controller on that CPU is "offically" rated to 1333 max. I think 1333 is the fastest available for any CPU on the market ATM.

Keep us posted!
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June 15, 2011 4:32:00 PM

Anything I touch disables the system. lol

I can't find memory controller overclocking option in CPU section either.

in addition, CPU's temp is like 28c but when I overclock it by 1mhz the system doesn't boot. How horrific. T_T
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June 15, 2011 4:54:10 PM

woooha. I changed it to 1333 and the timing worked with 7-8-7-24 as you described. Is there any way to run it with 1600 with the adjusted timing?
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Best solution

a b } Memory
June 15, 2011 5:34:18 PM

Nice! I'm glad you got it to work!

There might be a way to get your RAM running at 1600 with the lower timings. The overclocking section of these forums has a lot of good info. You should start there. It seems like a lot of people have to "loosen" their timings in order to get their RAM running at 1600. You might have to choose between loose timings @ 1600 or the tighter timings @ 1333. The good news is: there probably isn't much of a difference. :) 

http://www.tomshardware.com/forum/254402-29-memory-over...

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June 15, 2011 5:45:11 PM

eightdrunkengods said:
Nice! I'm glad you got it to work!

There might be a way to get your RAM running at 1600 with the lower timings. The overclocking section of these forums has a lot of good info. You should start there. It seems like a lot of people have to "loosen" their timings in order to get their RAM running at 1600. You might have to choose between loose timings @ 1600 or the tighter timings @ 1333. The good news is: there probably isn't much of a difference. :) 

http://www.tomshardware.com/forum/254402-29-memory-over...



Thanks for your help! Have a good day! :D 
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June 15, 2011 5:45:21 PM

Best answer selected by highsis.
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