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O'cing Ram + CPU?

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January 13, 2011 11:43:41 PM

Hi everyone,

I've been wanting to overclock my ram a bit to get a little better performance on my system but ive been reading around and most people seem to say that it is alot better to overclock the cpu + ram together. I've also heard it is beneficial to have the FSB/DRAM ratio at 1:1. I'm not sure how to do this since I've never overclocked before.

Specs:

DRAM: DDR2 800mhz (2x1gb)... Ram is rated at 2.2v and timings are 4-4-4-12
CPU: Core2Duo E8500 3.16 Ghz
Motherboard: Gigabyte EP45-UD3P

CPUz reports FSB/DRAM ratio 5:6. I'm not sure if that's good or bad :/ 

Any help would be appreciated. If any other information is needed just let me know :) 



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a b } Memory
a c 242 K Overclocking
a c 139 à CPUs
January 13, 2011 11:59:15 PM

if your OC RAM stable under test stabillity, it's.. good.

u need check performace & Speed your OC RAM use software Benchmark tool like Passmark / syssoft sandra etc for comparison your OC RAM
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a b } Memory
a c 197 K Overclocking
a c 172 à CPUs
January 14, 2011 7:19:35 AM

Although overclocking RAM in a Core2 system will yield somewhat better results in a memory i/o benchmark, it has little practical on real world performance. Here's one of the places where we discussed that:
http://www.tomshardware.com/forum/251715-29-ratio-myth

For overclocking, this should be your first stop.
Core2 Overclocking Guide (generic guide)
http://www.tomshardware.co.uk/forum/259899-11-core-over...

Next:
Shadow's Gigabyte motherboard OC guide:
http://www.tomshardware.co.uk/forum/page-245679_11_0.ht...
It's for an EP35-DS3L but all the Gigabyte Core2 BIOS's are similar.

Go through the guides. Then take your core voltage off Auto and set your memory voltage to factory recommended values. Change the System Memory Multiplier (or whatever your BIOS calls it) from AUTO to 2.00, 2.00B, or 2.00D. Then when you increase the FSB, the memory clock will rise in direct proportion staying at twice the FSB freq. At an FSB frequency of 333 MHz, your memory clock should be at 667 MHz.

If you CPU chip will do it, with your FSB:RAM ratio set to 1:1, you will be able to reach 4.0 GHz while staying within the capabilities of your memory.

You will need better than stock cooling. For overclocking, the stock cooler is inadequate. Keep your core temps at load under 70 C and do not exceed 1.45 volts vcore.
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Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz :) 
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a b K Overclocking
a b à CPUs
January 14, 2011 3:07:53 PM

What kind of cooler do you have on your CPU, if you use the stock, your shouldn't OC the CPU. If you have something half-decent, you can probably just force the FSB:RAM ratio at 1:1, then set the FSB to 400Mhz and you would get 3.8GHz. However, to get there you might have to increase the CPU voltage, but I don't know by how much. I did just what I said above on my E8400 (E3110 actually) and it worked right away without issues.
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January 15, 2011 9:10:01 PM

Best answer selected by MangeyKalzoo.
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January 15, 2011 9:12:47 PM

jsc said:
Although overclocking RAM in a Core2 system will yield somewhat better results in a memory i/o benchmark, it has little practical on real world performance. Here's one of the places where we discussed that:
http://www.tomshardware.com/forum/251715-29-ratio-myth

For overclocking, this should be your first stop.
Core2 Overclocking Guide (generic guide)
http://www.tomshardware.co.uk/forum/259899-11-core-over...

Next:
Shadow's Gigabyte motherboard OC guide:
http://www.tomshardware.co.uk/forum/page-245679_11_0.ht...
It's for an EP35-DS3L but all the Gigabyte Core2 BIOS's are similar.

Go through the guides. Then take your core voltage off Auto and set your memory voltage to factory recommended values. Change the System Memory Multiplier (or whatever your BIOS calls it) from AUTO to 2.00, 2.00B, or 2.00D. Then when you increase the FSB, the memory clock will rise in direct proportion staying at twice the FSB freq. At an FSB frequency of 333 MHz, your memory clock should be at 667 MHz.

If you CPU chip will do it, with your FSB:RAM ratio set to 1:1, you will be able to reach 4.0 GHz while staying within the capabilities of your memory.

You will need better than stock cooling. For overclocking, the stock cooler is inadequate. Keep your core temps at load under 70 C and do not exceed 1.45 volts vcore.
----------
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz :) 


Thanks man i understand it all now. unfortunately though when i try anything it fails to boot :(  . memory multiplier 2.00B FSB 333 and memory voltage 2.2v.
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a b } Memory
a b K Overclocking
a c 87 à CPUs
January 16, 2011 8:30:55 AM

I was going to say I'd change the timings to 5-5-5-15. Though.in your case I'd check the Vcore first.
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