View Full Version : mem timings, im lost ?...
Zejtan
10-30-2004, 08:30 PM
Ok, i will lay this one out as honestly as i can.
Im a total idiot when it comes to mem timings.
I have no frikin idea what to change and what that change will do.
I do know that 2-2-2-5 is good, and 3-3-3-6 aint good.
i have tryed some sisosoft sandra for some time now, and the "best" score i seem to get is this, using 3-3-3-6, me tests on 2-2-2-5 aint to good....
but this seems to be not so bad afterall, comparing to other screen shoots i have seen around, most of them are at the 4000 +, so maybe my scores arnt that :banana::banana::banana::banana:ty as i think they are ?
comments and ideas are wery welcome.
http://ruff.se/files/etc/pub/upload/259.GIF
jjcom
10-30-2004, 08:39 PM
try
2.5-3-3-8
or 2.5-3-3-10
see if that works.
Let me get something right...2-2-2-5 runs slower than 3-3-3-6? There is something wrong there. The lower the numbers means the less latency there is. Meaning quicker reaction time I believe. I am not sure if I am explanning this right. If I am not please correct me. What have you gotten that Rev 2 at with 1GB in and with what timings. Please post a screen with A64 Tweaker.
But you should be able to run that memory at 2.5-4-3-0 maybe even 2.5-3-3-0. Give that a try man and see what your bandwidth scores are at. I myself am running 205 @ 2.5-4-3-0 and I get 3799MB/s. With the timings at 2.5-3-3-0 I get 3808MB/s. Running that there isn't that much of a difference. I wonder if I can get it at 2.5-3-2-0. I am going to give it a try.
EDIT: 2.5-3-2-0 doesn't work :p
try
2.5-3-3-8
or 2.5-3-3-10
see if that works.
With that Board and that RAM he needs to run his TRAS at 0. It shows better results.
Occidere
10-31-2004, 01:49 AM
I don't have much room to talk because I've yet to tweak timings much but from what I've seen so far is tighter timings increase your speed factor which is a good thing. Loosening timings increases bandwidth and also allows you to run higher speeds. Changeing timings at the same speed shows little results, it's when your upping the speed that you need to watch your timings
Zejtan
10-31-2004, 03:07 AM
anyone that knows of a FAQ of some kind that really Explains the mem timings ? i would really like to learn how this work. im totally lost when it comes to this subejct.
thnx for the posts above, but kan anyone tell me What timings i should really go for.
anyone with the same sticks as me ? that have a fairly good idea of what is the best for them ?.
i dont have a singel clue on what i should go for. but 2-2-2-5 doesnt seem to be a good chooise for this sticks, yea, ok, it will work untill 250 but i have 250x10 as default...
and i learned something good last night, i was under the impression that superpi was a CPU benchthingy, but heck, low mem timings was a succses when it comes to 1M time in s-pi !
any further answers will be apreciated.
// Zejt
STEvil
10-31-2004, 03:27 AM
cas latency is unimportant.
TRP a TRCD are important.
TRAS is good but not as important. 0 or 5 are usually best, 11 on dual channel nF2/3/4(?). 10 is a good one to look at too.
As to the rest, play with them to get the highest mem speeds possible basically.
Zejtan
10-31-2004, 03:33 AM
i dont understand what you are talking about.
please understand "i dont know how this works !"
STEvil, you seem to have good hang of how this timing-things work,
could you please tell me what you really think i should do, and i will test it now.
sutsh as mem timings and voltage on them
the info if not told on the system is -
OCZ EL DDR PC-3200 Platinum Rev2 2x512MB
DFI Lanparty UT NF3 250GB
AMD Athlon 64 3400+ Box
enzoR
10-31-2004, 03:35 AM
anyone that knows of a FAQ of some kind that really Explains the mem timings ? i would really like to learn how this work. im totally lost when it comes to this subejct.
thnx for the posts above, but kan anyone tell me What timings i should really go for.
anyone with the same sticks as me ? that have a fairly good idea of what is the best for them ?.
i dont have a singel clue on what i should go for. but 2-2-2-5 doesnt seem to be a good chooise for this sticks, yea, ok, it will work untill 250 but i have 250x10 as default...
and i learned something good last night, i was under the impression that superpi was a CPU benchthingy, but heck, low mem timings was a succses when it comes to 1M time in s-pi !
any further answers will be apreciated.
// Zejt
link to explaination (http://www.corsairmemory.com/memory_basics/153707/)
Zejtan
10-31-2004, 04:15 AM
link to explaination (http://www.corsairmemory.com/memory_basics/153707/)
Have you seen the movie with the robot, i belived he was called "johnny five".
he rolled around yelling "INPUT INPUT INPUT !", even he would crash and burn with all that input !,
i got some better understanding for mem,
but still, i have a heck of a lott more to try, to learn.
enzoR
10-31-2004, 04:32 AM
u will learn the rest with experiance ;)
In time you will learn with just playing with it. That is the fun part of it all. I don't read anything really...I just play with it and teach myself with it all. Learn what does what and then figure out why it does what it does. Sound right? lol
Zejtan
10-31-2004, 07:21 AM
I think im gonna go and buy a Nintendo again....
jjcom
10-31-2004, 07:38 AM
just have fun and mess around with your mem timings... I found out that 2.5-3-3-8 DDR400 runs just a little better than DDR333 2-2-2-8. and system unstable at DDR400...
Yeah memory is really weird and does very different from stick to stick.
jjcom
10-31-2004, 08:41 AM
yep...dependes on when the stick was made, what board you have....Athlon 64s are good at acheveing insanly high mem bandwidth.
Zejtan
10-31-2004, 09:14 AM
this is a totall mysteri...
made some tests with 2 2 2 11 compared to 2 2 2 5.
2 2 2 5 gave me 3197 and 2 2 2 11 gave me 3194 in sandra.
some said to me in msn that amd wants 11 instead of 5, so i tryed it, but that didnt work, somehow, i think 3-3-36 aint so bad after all ?, but i want more...
macci
10-31-2004, 09:28 AM
Dont use buffered (Default) sisoft sandra mem test for comparing different mem timings.
Running is unbuffered/unoptimized gives a better idea of real performance
settings for unbuffered bench:
http://www.akiba-pc.com/e107_images/articles/30c/memsettings.gif
STEvil
10-31-2004, 09:56 AM
Have you seen the movie with the robot, i belived he was called "johnny five".
he rolled around yelling "INPUT INPUT INPUT !", even he would crash and burn with all that input !,
i got some better understanding for mem,
but still, i have a heck of a lott more to try, to learn.
lol! :D
A64 is a bit deep off the start.. its got about 3 times as many timings as even the DFI nF2 boards.. but you'll get the hang of it eventually ;)
I just started messing with these things about 4 days ago... I think mine doesnt like the stick of PC2700 thats in it :rolleyes: :D
The DFI loves Rev 2:D
You're sure?
Both you and me can't get it to run stable over 270MHz do we?
You're sure?
Both you and me can't get it to run stable over 270MHz do we?
Yes I am sure...because I have seen someone get 285FSB with 2 DIMMs in on a DFI. I have a crappy CPU...I am unsure if that is your problem as well.
Zejtan
10-31-2004, 02:47 PM
i just stopd reading a rec on these mem,
next im going to try
2-3-3-5 and after that 2.3-3-3-5
what do you think of thoose timings ?
a danish site tested this mems and got some pretty sweet scores ! ( atleast i think they are so... =)
But what what FSB speeds? With that RAM you should be able to do atleast 220FSB at CL2. You might be able to get alittle more out of it. At CL2.5 you should be able to do anything else. If not don't be afraid of CL3. It doesn't lower scores all that much at those timings. But seriously throw your TRAS at 0 man. It does help alittle. If you are using stock speeds TRAS at 5 is the best. But at any other speeds for me 0 has been better than 10 even. AMD64 does love 10. it just seems with this board it loves 0 even better for me anyway.
a0chicken
10-31-2004, 04:51 PM
Have you seen the movie with the robot, i belived he was called "johnny five".
he rolled around yelling "INPUT INPUT INPUT !", even he would crash and burn with all that input !,
i got some better understanding for mem,
but still, i have a heck of a lott more to try, to learn.
I love that movie.
Just keep experimenting, it seems that different boards will yield different results, so just dive in!
STEvil
10-31-2004, 11:53 PM
Here, this thread wouild be a good read for ya: http://www.xtremesystems.org/forums/showthread.php?p=581541#post581541
Zejtan
11-01-2004, 09:54 AM
ugp, i se in your sign that yoy run the same mobo and mem's as me, and that you run 2.5-4-3-0
will try that wery soon,
can you plz post a screen with sandra with your score, i am wery intressted in them to compare in what i will get.
thnx STEvil, will read as soon as my puppy stops biting my toes and goes to sleep.
kind a hard to oc with fivehundred razor sharp fangs hanging on the left foot big toe !... =)
Kobalt
11-01-2004, 09:56 AM
mem timings dont effect sandra scores pretty much at all
Zejtan
11-01-2004, 12:56 PM
i am getting agravated at this,
i have speent some time in this mem setting jungel now, and this is the best i cab get, superpi 1M gets f u ^ ^ ed up after 271x10,
i can run sisosoft sandra at 274x10, but the same second the test is finnishd, and i press "prt scr sys rq" the armageddon hits the fan...
So, here is the best i got so far.
Anyone that also has a dfi ut nf 250 gb
and these Rev 2 sticks to compare with, i want to se what i should get...
all sisosoftsandra mems i have seen sofar is in the 6000+ scale, and that makes me mad, wery mad... mader then Al bundy....
http://ruff.se/files/etc/pub/upload/273-2.5-4-3-0.GIF
Do you mean 6,000MB/s? If you do you are not going to get that on this board man. It is only Single Channel. You should be able to get close to 5,000MB/s with one stick in.
Zejtan
11-01-2004, 02:49 PM
i cant get it into my sick little mind that One stick performs better the " sticks,
it odesnt Make Any sence for me !,
that i should get Faster by removing ram is to like my bike will go Faster if i remove one valve for ewery cylinder !... It DOESNT MAKE Any SENCE ! Ghaaaa,,,,
Why the flying cocododeldo ! build a board with 3 mem slots, if the s^^t will Work BETTEr and FASTER with only One in use !
REALY, does it make sence ? i will soon take the butsher knifem get out in the bushes next to my appartment and wait for something to walk by that i can make little pices of !...
this Oc'ing is breaking my sweet, and gentle personality in bits and pieces.
Ubermann
11-01-2004, 03:34 PM
Håller fan på skratta ihjäl mig om dina 500 fangs på stortån!!
It makes sense cuz they have to sync and then the trouble starts.
You are looking over the whole situation. What I meant was one stick will overclock better than 2 sticks will. You can get faster performance out of one stick but when it comes to needing alot of 'actual' RAM it will run better with two in there. Kinda like your newer games like Doom 3 and all. For benchmarking only use one stick man. For regular everyday use use 2 sticks. Overclocking is something you have to have alot of time with. It takes time man. Messing with every little settings until you find what does the best for you. If you get mad and upset with it you are going to go nowhere man. Be patient!!! LoL! That is the only advice I can give to you man. You have alot to learn man if you don't understand why it works the way it does. Once you get an understanding for it you will know more about what exactly you are doing when you change something with settings in the BIOS. Good luck. Need anymore help just ask. I got no problem helping someone out. Lots of people help me out here. That is what this forum is for.
Håller fan på skratta ihjäl mig om dina 500 fangs på stortån!!
It makes sense cuz they have to sync and then the trouble starts.
WTF??? LoL! :p:
Ubermann
11-01-2004, 03:41 PM
Swedish =)
Zejtan
11-01-2004, 03:46 PM
You are looking over the whole situation. What I meant was one stick will overclock better than 2 sticks will. You can get faster performance out of one stick but when it comes to needing alot of 'actual' RAM it will run better with two in there. Kinda like your newer games like Doom 3 and all. For benchmarking only use one stick man. For regular everyday use use 2 sticks. Overclocking is something you have to have alot of time with. It takes time man. Messing with every little settings until you find what does the best for you. If you get mad and upset with it you are going to go nowhere man. Be patient!!! LoL! That is the only advice I can give to you man. You have alot to learn man if you don't understand why it works the way it does. Once you get an understanding for it you will know more about what exactly you are doing when you change something with settings in the BIOS. Good luck. Need anymore help just ask. I got no problem helping someone out. Lots of people help me out here. That is what this forum is for.
THANK YOU !.
now, i actually understood the meaning of the actual mem intergrated in the system.
And my explenation to my stupidity is that i am techno-retarded, i dont know mutsh in this oc area... butm hey, imlearning, and im learning slow =), and thanx to you, i learned something new today ! :toast:
Quote:
Originally Posted by Ubermann
Håller fan på skratta ihjäl mig om dina 500 fangs på stortån!!
HE IS LYING ! that aint Swedish !
( a, well ok, i admit, it is.... )
ToastedToad
11-01-2004, 09:41 PM
Just remember, this is supposed to be fun. Try to keep track off all your changes and only make one at a time so you will know what worked and what borked. I made a lttle chart and printed it out with all of the timings available on it. Went into A64 tweaker and copied all of the (known stable) settings into my chart, and went from there.
Good luck and have fun.
ToastedToad
11-01-2004, 09:47 PM
http://www.ocforums.com/showthread.php?t=329627
Check this out, it may help ya.
First of all, chill out, have a cuppa or a fag or whatever is taking your fancy. ;)
Now get yourself a floppy with memtest on it.
Test your settings with memtest first be4 booting into windows.
Booting into windows with an unstable rig can cause the register to corrupt, which means a new windows install, not something to look forward to i'd say. :(
Memtest also shows a bandwidth figure, changing settings will in- or decrease this number, off course the higher the better but for higher numbers you have to sacrifice stability often.
Having patience and changing one setting at a time will get you there, if you change a few settings at once you don't know which setting made it perform better or worse.
Take your time man, you have a nice rig! ;)
Zejtan
11-02-2004, 09:50 AM
i have finaly get it spanked into my dopey little head, that it is because i have a singel channel motherboard, that makes the diffrence. So, i have decided to use Booth my 512's as standard, i figured, hey, whata heck, im not using this as a benchmark only system, this is my daily setup for use with all that it means, therefore, i will probably have more use for both of the 512's, and instead, try to get better scores, and good stability with full memory.
But it would be sweet to se 6000+ some day with these mems, but that would meen a 939 system i have figured out,
and that is not calculated into my economy...
Take your time man, you have a nice rig! ;)
so do you, i hope i can beat your score some day, im "around" 1K bejind you =), whats your cpu cooling etc on your system ? =)
im "all on air" =)
Look at the date of that 25K run, it's over half a year old!
That was 100% aircooled at that time but only with a FX5900.
Nowadays i have watercooling on the CPU, an RBX, BI microII and an Eheim 1048 pump but my CPU is one of the first 3400+'s and overclocks like sh*t.
I will get me a new 3400+ NewCastle soon, i hope it will clock as good as yours, what's your max stable?
Zejtan
11-02-2004, 01:35 PM
Look at the date of that 25K run, it's over half a year old!
That was 100% aircooled at that time but only with a FX5900.
Nowadays i have watercooling on the CPU, an RBX, BI microII and an Eheim 1048 pump but my CPU is one of the first 3400+'s and overclocks like sh*t.
I will get me a new 3400+ NewCastle soon, i hope it will clock as good as yours, what's your max stable?
SHOWOFF ! :D
I only wish I could hit 25K on it...I can't :(