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  Ram Clocking Exsplained!! 
 
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Rory Witham Dec 23, 2003, 06:39pm EST Report Abuse



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chris mcferrin Jan 01, 2004, 01:51am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
my computer seems to be running 2-5-2-2 with CAS latency of 2 just fine...one thing i dont understand though is what bank interleave means

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grant fanning Jan 01, 2004, 01:53am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
too confusing for me

Rory Witham Jan 01, 2004, 10:15am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
I would belive interleveing to be where it stores multi data in the same set as other data, if it said woven into, would that make sence?


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Drizzit Jan 01, 2004, 11:05am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
Bank Interleaving allows banks of SDRAM to alternate their refresh and access cycles the more banks the faster!!

Bios jSettings:
4Bank - is the fastest setting, try this setting first if it's stable then leave it!

2Bank - 2nd fastest setting, use this if 4Bank is unstable!!

Disable - ignore as most RAM now days will support atleast 2Bank!

chris mcferrin Jan 01, 2004, 11:54am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
my computer runs 4 bank just fine..

is 2010 MB/s good?

i have 2 sticks PC2100 256 kingston, and my board is a biostar M7VIG Pro

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Drizzit Jan 01, 2004, 06:18pm EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
Sorry, I was in a rush the other day and didn't take my time to explain fully!!

If you Look at your RAM visually you can tell how many Banks it has, as SDRAM is only configured into Modules of either 2 or 4 Banks!

Single-sided SDRAM has 2banks of chips with 4 chips in each bank! So to be able to use a setting of 4Bank you would need a mininum of 2-sticks Single-sided !! If you only have 1-stick of Single-sided SDRAM the only setting availabe should be 2Bank!

Double-sided SDRAM has 4Banks of chips with 4 chips in each bank! So your setting should always be set to 4Bank!!

Rory Witham Mar 27, 2004, 07:56pm EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
Its just come to my attention that the NF2 MOBOS ARE CONFIGURED WRONGLY...

under normal conditions setting ram two 2.2.2.2 woud be good and run very fast, this is not so..you may wish to check your mobo just incase this is the same on your system as its some thing we dont often check..

Try these setting as i have been doing some testing to find the best read and write results for the mobo.
TRAS 11
TRCD 2
T RP 3

something like this
Cycle Time (tCYC) = 6.000 ns fMax = 166.667 Mhz
Access Time (tAC) = 0.700 ns fMax = 1428.571 MHz
CS Supported: 0.0 clocks
WE Supported: 1.0 clocks
Min Delay, Bk/Bk Random Cols: 1 clocks
Min Row Precharge Time (tRP): 18.000 ns
Min Row Active delay (tRRD): 12.000 ns
Min RAS to CAS delay (tRCD): 18.000 ns
Min Actv to Precharge (tRAS): 42.000 ns
Addr/Cmd Setup Time: 0.800 ns
Addr/Cmd Hold Time: 0.800 ns
Data Setup Time: 0.450 ns
Data Hold Time: 0.450 ns

YOU may want to read this link:
http://www.aoaforums.com/forum/showthread.php?t=19005


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Shadow_Ops_Airman1 Apr 01, 2004, 01:52am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
cant u up the Ram-bus speed?

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SurrealBeingX <> Apr 01, 2004, 11:37am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
when people list their timings for their ram, and they say something like 2-2-2-2, what do each of the numbers mean? im just not sure exactly

SurrealBeingX <> Apr 02, 2004, 04:25pm EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
HELLO (-_-) someone...answer..

Rory Witham Apr 05, 2004, 02:21pm EDT Report Abuse
>> Re: RAM CLOCKING exsplained!!
PM sent


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Rory Witham Apr 05, 2004, 02:24pm EDT Report Abuse
>> Re: RAM CLOCKING exsplained!!
IF you want to use a fster FSB, as airman asked. or told?? read this link. works on NF mobo's
http://www.hardwareanalysis.com/content/topic/17534/


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Rory Witham Nov 07, 2004, 08:24pm EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
Just before people ask, again, Also Could the makers of the over clocking guids add this as a link to that thread., :)


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Rory Witham Feb 25, 2005, 10:52pm EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
For technical details, its always worth knowing what youre doing.. Here is a list of what the help TrPcalal Wanna 4, means
http://www.ocfaq.com/article.php/overclocking/64

Its not going into detail as there never is a definative guilde as to what does what and where thing should go.
you need to have a good techinical mind to work out this lot, and you need to be able to get technical details from the makers of your RAM, - Thats even worse, Have you read the tech white papers? with there little diagrams!

Im lucky cuz I have been a engineer so knowing things like conductive fault tollerences and other stuff that you would NEVER ever use I know...

Anyway I hope this exsplains things a bit better.

When changin your timing Remember TRCD and tRP Must match. TRAS is anywhere from 3 -11 dependent of the speeds of your ram and preformance. Download sisoftsandra and run the benches on RAM, change a number and see what you get..

Ex Standard DDR 333 in a NF2 gave me 2336, Clocked in the NF4 gives me 4894 as you can see this is a considerable difference, but ther was never the oppertunity with the NF2 board to do this..:(


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Nick Richards Mar 31, 2005, 05:53am EST Report Abuse
>> Re: RAM CLOCKING exsplained!!
link dont work

wayne boyd Mar 31, 2005, 01:27pm EST Report Abuse
>> Re: Ram Clocking Exsplained!!
i think there are more topics better out on the net than this one.

Jan George Apr 01, 2005, 09:46pm EST Report Abuse
>> Re: Ram Clocking Exsplained!!

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Sean Wilson Apr 02, 2005, 02:25pm EST Report Abuse
>> Re: Ram Clocking Exsplained!!
could someone please explain wot da hell all this means in english... i don't speak nerd

Lawrence Heffernan Apr 02, 2005, 05:21pm EST Report Abuse
>> Re: Ram Clocking Exsplained!!
I was playing around with my memory the other day, got it to 258MHz at 2.8v and broke the 4,000mb/s barrier (actual performance), not bad from bog standard Crucial PC3200 and a nice a64 memory controller and a Via K8T800 Pro chipset with AGP/PCI lock.

Rory Witham Apr 02, 2005, 05:28pm EST Report Abuse
>> Re: Ram Clocking Exsplained!!
I didnt realise people were still reading this, I posted it some time ago, Writing something about ram is hard becuase each ram make and model is different and so is the mobo that is used when you clock or want to adjust.

4000MB/s isnt so good for what you have, I have some OCZ basic that pulling over 6100MBs I think that maybe there is somthing worng there somewhere as the board that you have should be hitting atleast 5K im only running :@ 204FSB to get my speeds, I would consider adjusting your times to check for available bandwidth and speed.


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