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Setting Ram Timings

post #1 of 11
Thread Starter 
ello all

ok so far i looked at reading the guides about ram timings but still have a very big ? over my head so... i just go through with u guys if u dont mind

so far i have a water cooling solution on my system on the CPU at the moment havnt done any ocing yeat as i wanna first set my ram timings...

for my CPU (E6600 2.4G) i am gonna set it to 3ghz or 3.2ghz stock volt so i need to find out which ram timings will be best suited for it...

heres the ram i got



800mhz @ 4-4-4-12
2.1v

this is how it is showing up in CPUZ...





using this as a template (i will do this all in bios)

what do i change to run at 4-4-4-12 @ 1066mhz?

Here is a bigger image

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post #2 of 11
I'm not sure how good that ram is at OC'ing, but asking a 800mhz set to run 1066 is a lot dude. Even for a good kit of pc6400

Don't worry about the timings for now. What you want to is put a low divider on your RAM so it runs at a low speed. OC the CPU until it gets unstable. Find the maximum stable OC for the CPU.

Now see if the RAM will run 1:1 with the CPU and then you can adjust the timings until the RAM becomes unstable.

So just leave the timings at stock for now, they aren't that important for the time being.
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post #3 of 11
Thread Starter 
cpu runs stable all the way up to 3.7ghz already tested this after i stuck the WC in...

i dont really know what timings to change but i know that the ram can go to 1066 at stable as i saw a review showing stable timings at 1066
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System BlackCore
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post #4 of 11
Hi.

It is generally recommended to overclock through the BIOS (no offense)... but clearly the choice is yours.

As IcedEarth stated, 1066 is a BIG OC for 6400 RAM...

Here are some short articles that you would benefit from:

RAM timings explained

How RAM works

You will find the settings in the BIOS to look something like this:



That pic depicts the timings as 4-4-4-8

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post #5 of 11
Quote:
Originally Posted by IcedEarth View Post
I'm not sure how good that ram is at OC'ing, but asking a 800mhz set to run 1066 is a lot dude. Even for a good kit of pc6400

Don't worry about the timings for now. What you want to is put a low divider on your RAM so it runs at a low speed. OC the CPU until it gets unstable. Find the maximum stable OC for the CPU.

Now see if the RAM will run 1:1 with the CPU and then you can adjust the timings until the RAM becomes unstable.

So just leave the timings at stock for now, they aren't that important for the time being.
Not to sure bout that either but mine can hit 1200 with 2.3v an 5-5-5-15
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post #6 of 11
Quote:
Originally Posted by IcedEarth View Post
I'm not sure how good that ram is at OC'ing, but asking a 800mhz set to run 1066 is a lot dude. Even for a good kit of pc6400

Don't worry about the timings for now. What you want to is put a low divider on your RAM so it runs at a low speed. OC the CPU until it gets unstable. Find the maximum stable OC for the CPU.

Now see if the RAM will run 1:1 with the CPU and then you can adjust the timings until the RAM becomes unstable.

So just leave the timings at stock for now, they aren't that important for the time being.
You do realize that every 1066 kits are made from 800Mhz IC's and overclocked right?
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post #7 of 11
Quote:
Originally Posted by Cyant View Post
You do realize that every 1066 kits are made from 800Mhz IC's and overclocked right?
Really?

No offense... but can you substantiate your statement?

I can not get my RAM (Patriot Extreme 6400 to run over 900... but that's probably me. )

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post #8 of 11
Thread Starter 
for some reason if i change my timings my system wont boot to windows... giving me a file corrupt...

setting the timings back boots windows :/

if there a system file that needs re-doing? so am i screwed for the moment? untill i reinstall windows with oced settings?

btw can someone remind me what stock volts for E6600?
System BlackCore
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System BlackCore
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E6600 @ 2.4GHz Evga 680i BFG 8800GTX 2x 1GB Geil 6400 800MHz 
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post #9 of 11
Quote:
Originally Posted by Syrillian View Post
Really?

No offense... but can you substantiate your statement?

I can not get my RAM (Patriot Extreme 6400 to run over 900... but that's probably me. )

Find me a DDR2 IC chip rated for more than 400Mhz operation by the manufacturer. I am sure you won't find any.

Manufacturer of memory sticks like Corsair, OCZ etc... buy those 400Mhz IC's. Test them, those that pass their test at 1066Mhz are put in PC8500 sticks but rated for a higher voltage than when they are in PC6400 sticks of course. Hence they are rated to be run overclocked by the manufacturer.

The SPD on those sticks end at 400Mhz because Jedec didn't approve higher speed. That is why they came up with EPP (SLI memory like the marketing jerka$$ like to call it). EPP use the empty bits on the SPD chip to specify tighter timmings and higher clock speed on those sticks. If you don't have an EPP supporting mobo AND EPP supporting ram then you must set the speed manually in the BIOS like in the case of my OCZ Titanium VX2 PC8000. This kit don't have EPP settings but are still rated PC8000 but must be set manually.

I don't have any link to prove what I say but it's pretty common knowledge. I am sure other people can back up what I say.
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Cerebro
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Hard DriveOptical DriveOSMonitor
7 Hard Drives - All 7200RPM External LG DVD-Writer 16x via Firewire Windows XP SP2 Compaq V1000 21" CRT 
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post #10 of 11
Quote:
Originally Posted by deadly2003 View Post
for some reason if i change my timings my system wont boot to windows... giving me a file corrupt...

setting the timings back boots windows :/

if there a system file that needs re-doing? so am i screwed for the moment? untill i reinstall windows with oced settings?

btw can someone remind me what stock volts for E6600?
Make sure your setting in the Bios for the memory is set at Linked -> Sync Mode then try your overclock. on the EVGA board Linked -> 1:1 overclock the memory by a lot because the Bios setting actually give you 1:2...
Cerebro
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Hard DriveOptical DriveOSMonitor
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Cerebro
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Hard DriveOptical DriveOSMonitor
7 Hard Drives - All 7200RPM External LG DVD-Writer 16x via Firewire Windows XP SP2 Compaq V1000 21" CRT 
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