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BIOS settings RAM

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  • Chipsets
  • RAM
  • Processors
  • Overclocking
Last response: in Overclocking
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February 21, 2010 4:01:43 AM

Hi guys. Ive done a tonne of research on this and I still can't find a good solution, so any help would be greatly appreciated.
I currently have 2 sticks of Ripjaws PC12800 (1600 mhz). I know it's a little bit fast for my mobo+processor but I wanted a solution for my 2gb of 600DDR2 RAm and these seem like a good option until I upgrade my mobo + processor in about 6 months.
My motherboard is a Gigabyte EP43 UDL3 (it supports 1333 mhz DDR3 RAM), and my processor is a E4300.
so anyway, I want to get a 1:1 ratio on my RAM but I still want to have a decent RAM speed. This is the first time I've really gone into the BIOS and although I managed to successfully overclock my processor to around 3.4GHZ, I don't really know about the settings I should put on my RAM to get a good 1:1 ratio and as much speed as possible, but also have a high processor speed.
I also don't know about MCH Latch and whether I should choose a A, B, C, or D multiplier.
Any help would be greatly appreciated!

More about : bios settings ram

a b K Overclocking
February 21, 2010 12:10:25 PM

Are you sure your motherboard supports DDR3? As for the 1:1 ratio, I doubt that's possible. DDR3-1333 runs at 667 MHz, and I doubt your FSB can be driven that far. If you get DDR2-800, which runs at 400 MHz, you would need an FSB of 1600 (400 MHz times 4) to get a 1:1 ratio. With that, I think it's better to drop to 1:2.
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February 21, 2010 2:15:24 PM

YEs I am sure. Could anybody please tell me the best settings for my FSB and memory multiplier (A, B,C or D)?
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a b K Overclocking
February 22, 2010 12:07:02 AM

OK, with DDR3 it's pretty much impossible to get a 1:1 FSB:D RAM ratio, unless you lower the DRAM frequency considerably. The E4300 runs at 200 MHz (800 MHz quad pumped) stock, so unless you want to run DDR3 at 200 MHz (400 MHz effective), I say go for a more reasonable ratio. I think 1:3 (or 2:6) is better. At 200 MHz FSB, the RAM will run at 600 MHz (1200 MHz effective); very close to 1333. Since you overclocked your processor to 3.4 GHz (With approximately a 380 MHz FSB), a ratio of 1:3 will give you 1140 MHz for the memory.

I'm not sure about the ABCD multiplier though. Someone with experience with Gigabyte motherboards should help you.
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February 22, 2010 10:59:52 AM

Icurrently have my fsb set to 370, but my question is, what should i set my memory multiplier and mhc latch to?
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