Finding best timing?

I just recently started to overclock my Twinx1024-3200C2PT and initially started at my FSB of CPU of 259 to get 1:1. So I set the ram FSB to 259 doing 3-4-4-8 and it memtested and primed just fine.

My question is, What way is most efficient way in going about finding the best timing at that speed without trying each and every possible combination because it will take too long to go through each combination. I know CAS 2 will not boot with any other combination, so that leaves (2.5 and 3) *(2,3,4)*(2,3,4)*(5,6,7,8)... 72 combinations!!! Yikes I am definately not going to do that.

Thanks

Look for reviews of overclocks done by others. Anandtech lists timings and volts from several settings when they test. This is not your ram, but here's a sample...
http://www.anandtech.com/memory/showdoc.aspx?i=2082&p=5
If your ram is tccd, these settings should be a good place to start. If your ram is not tccd, find reviews of the same chip - different brands.

You need to find out what ICs are used in your modules. A good place to look is the corsair support forums. After you report back your findings, someone will be able to assist you.

I went to the corsair support forum and asked. I am awaiting a definate answer, however in searching through other forums I found that its either TCCD or TCC5. Chances are that it is TCC5.

So, what can TCC5 do at around 260 in terms of timing?
and just for the heck of it, what about TCCD at 260?
and @ what voltages?
Thanks

VTpelt you have TCCX ic's.
CMX512-3200C2PT XMS3200C2 V4.2 0520114-0 = Samsung -5 TCCX
This is from page 16 of the IC Inquiry Thread.

Ram Guy said:

TCCX = Is a down bined TCCD IC weather from samsung or by us, so it can be a TCC3 or TCC4 or TCC5 or a TCCD marked on the IC, but it really does not matter what IC we use as long as the modules meet their tested spec and you sound like they have done that and more.

Click to expand...

http://www.houseofhelp.com/v3/showpost.php?p=195019&postcount=234

What's up man. I got the same RAM...trying to acheive 1:1 237 overclock. Playing around with timings right now...hopefully I'll get a 600MHz OC on this 3.2e.
Try 2.5-3-3-6
2.5-3-3-7
3-3-3-7
3-3-3-8 (which is default SPD settings)

and of course if you really really want to, you can try 2-3-3-6 which is what the RAM is rated at.

I start off with 2.6v and try to bump to max...about 2.8v for my mobo...if timings dont work, I loosen them up and go from there.

Hope it helps...this is some good ram.

CMX512-3200C2PT XMS3202v4.2 0521081-3 = Samsung -5 TCCX
CMX512-3200C2PT XMS3202v4.2 0521100-2 = Samsung -5 TCCX
CMX512-3200C2PT XMS3200C2 V4.2 0520114-0 = Samsung -5 TCCX
CMX512-3200C2PT xms3202v4.2 0434113-1 = Samsung -5 TCCX
CMX512-3200C2PT XMS3202v4.2 0429043-0= Samsung TCCX
CMX512-3200C2PT XMS3202v4.20511102-1 = Samsung TCCX
CMX512-3200C2PT XMS3202v4.20434113-1 = Samsung TCCX
CMX512-3200C2PT XMS3202v4.2 0434113-1= Samsung TCCX

Thanks AlcatrazT2 for the post.

@ 259 mhz
2-x-x-x will not boot at any voltage

Testing right now
2.5-3-3-6 @ 2.65v
I'll let you know tomorrow morning

This is taken from the memory sticky it's just some general guidelines to finding the best memory timings.

Here are general guidelines to follow while "tweaking":

* As with CPU/video card overclocking, adjusting the memory timings should be done methodically and with ample time to test each adjustment.
* lower figures = better performance, but lower overclockability and possibly diminished stability.
* higher figures = lesser performance, but increased overclockability and more stability -- to an extent
* tRCD & tRP are usually equal numbers between 2 and 4. In tweaking for more overclockability, lower tRP first between these two
* CAS should be either 2.0 or 2.5. Many systems, most nforce2, fail to boot with a 3.0 setting or have stability problems. CAS is not most critical of the various timings, unlike what is taught by many. In general, the importance of CAS when placed against tRP and tRCD is nominal. Reducing CAS has a relatively minor effect on memory performance, while lower tRP & tRCD values result in a much more substantial gain. In other words if you had to choose, 3-3-2.5 would be better than 4-4-2.0 (tRCD-tRP-CAS)
* tRAS should always be larger the before mentioned timings. – see below

Well, it seems to me that this forum has become what can the TwinX1024-3200C2PT can do.

It has been 8 hours and 30 minutes and memtest still reports no errors. I am pretty damn impressed by these sticks of ram. So I will have to say:

@259
2.5-3-3-6 2.65v stable

If anybody else has experience running this FSB with these sticks, let me know what you get for your timing so I don't have to keep going through testing each setting cause its becoming a pain in the butt.

Testing now:
259
2.5-3-3-5 @ 2.65v ????

Well then, nm... I just finished reading the sticky and it seems to me that changing my tRas will not do anything for me but maybe cause some problems, so I am not going to spend the time to test a lower tRas.

Thanks for the post TalRW.

2.5-3-3-6 @ 2.65v is more than I can ask for from these pieces of ram that I bought for $115. To think, I was going to go get PC4000 for $70 more. Shame Shame! I am going to settle here. My computer will not boot with FSB over 259 but thats for another forum. Thanks for the help.

Don't give up...
I'm doing extensive testing on these sticks of RAM. I am currently going through all possible timings and all possible volts on each timing. I'm yet trying to find the max these can go. Here you go, it may be of some use. Will make an official thread once the testing has finished but I'll give you a sneak peak.

237x16=3792MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 237 @ 2-3-3-6
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

237x16=3792MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 237 @ 2.5-3-3-6
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

237x16=3792MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 237 @ 2.5-3-3-7
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

237x16=3792MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 237 @ 3-3-3-7
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

237x16=3792MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 237 @ 3-3-3-8
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

236x16=3776MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 236 @ 2-3-3-6
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

236x16=3776MHz
1.65 Vcore
1.65 AGP Voltage
RAM: 1:1 @ 236 @ 2.5-3-3-6
1.6500 Vcore @ 1.65 AGP Voltage @ 2.6v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.65v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.7v Unstable
1.6500 Vcore @ 1.65 AGP Voltage @ 2.8v Unstable

Will keep editing (updating) once new results are in.

The memory sticky mentioned above came in handy to day. http://www.ocforums.com/showthread.php?t=257741.

Drisler put this up and it went sticky for a good reason. I just built an Athlon 3000XP box to reuse some older hardware to have as a backup to my other rigs and Fold. I have HyperX DDR4s that run at 2-3-2-6, stock settings. I have run them on a P4 as DDR333+ at 2-2-2-6 but never Prime95ed them. I put 1 gig of the HyperX in the XP box and Prime95ed overnight for 6hours with good resulrs. The first attemp to run DDR333 stock CPU settings with 2.7VDimm and timings at 2-2-2-6 failed early in boot. The voltage setting is well under the 2.8V mfr reccomended. After talking to a friend, I read the link above and found that the Nforce2 chipset for technical reasons likes the timings at 2-2-2-11, 2-3-3-11, 3-4-4-11 and so on. Tonight I tried that just for Ss&Gs and the system booted. OK, Prime-Time! I cranked up Prime95(linux) almost 4 hours ago and looked it's still running, no errors reported. I'll let it run for 24 and see how it does.
It pays to do the research as opposed to hunting and pecking timings.

Each system is different...I've obtained results that could not be found anywhere else. If anyone has done extensive research for the RAM that VTpelt and I are using, then please provide me with the necessary information or the link. Myself, I have not yet come across anything worthwhile. And I'd rather take my time to find my max rather than read what someone else did on a totally different setup.