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OC tips for E6400 + 2x1GB XMS2 800Mhz

Last response: in Overclocking
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March 11, 2011 4:58:23 PM

Hello guys

My first time here posting and I'd like to have your opinion about OCing my computer.

The system I have now is:

Intel E6400 w/ WC
Asus P5B Deluxe
Corsair 2x1GB XMS2 DDR2-800

The OC I managed to get is:

3.2GHz @ 1.416v load (CPU-Z) @ 52ºC
FSB @ 400
1:1
5-5-5-15
2.0Vdimm

Have been running Orthos for 5h.

Is there any chances to get any better results for my CPU and this memory ? Which concerns incresing FSB/decreasing Voltages (core and dimm) and decreasing timmings ?

Thanks in advance ;) 
Regards
March 12, 2011 6:19:46 PM

Thanks for the guide, it gave me a few new tips ;) 

About the OC of my system, I have some updates.

I've been doing some changes and came to this settings so far (hope to get some feedback from you guys):

3200MHz @ BIOS VCore 1.45V - CPUZ 1.408V idle and 1.392V full @ ~47ºC full / ~36ºC Idle
4-4-4-10 (-6-42) 2T @ 2.10V @ 1:1
FSB400

Is it worthy to decrease 6 and 42 timings ? Do I get any advantages ?

By the way, for this CPU clock the Vcore can't be decreased because Orthos will stop running :/ 


Regards!
a c 197 K Overclocking
March 16, 2011 1:54:22 PM

amsa said:

Is it worthy to decrease 6 and 42 timings ? Do I get any advantages ?

No. Not really. The (really small) increase in memory i/o detected by a really goodmemory benchmark will not be noticeable in any real world benchmark. And it may contribute to system instability.
March 17, 2011 11:05:13 PM

jsc said:
No. Not really. The (really small) increase in memory i/o detected by a really memory benchmark will not be noticeable in any real world benchmark. And it may contribute to system instability.

Thanks for the answer.
I realized that tiny increase after doing some benchmarks with Sandra and AIDA64. I guess I'll set back the default timings (6-45) because of what you said, it may cause instability!

I've been doing some tests and right now I'm running Orthos to see how low can I go with Vcore.

The current settings are:

CPU @ 3200MHz @ 1.475Vcore @ FSB400
Memory @ 800MHz @ 2.1Vdimm @ 4-4-4-10 (default for the rest of the timings)

I can run them @ 4-4-4-9 but I guess there's no such big increase in performance.

Btw, one question. What's best: lower timings or higher speed (FSB) for the memory ?
I've read: Intel = speed and AMD = timings »» is it true ?

Regards
a c 197 K Overclocking
March 18, 2011 8:58:56 AM

For a Core2 system, lower timings will give you better performance. But again, it will take a really good memory benchmark. And again, the increase in memory i/o does not have much effect on real world performance.

Case in point - my first Core2 system: 1st gen E6600 (2.4 GHz), 2 GB DDR2-1000 Crucial RAM, eVGA 680i motherboard. At 3.3 GHz, motherboard memory settings were 5-5-5-15-2T. Worked them down to 3-3-3-7-1T. Gave a 7% improvement in memory i/o. Had no effect on system performance.

When I replaced the ACF7P cooler with a TRUE, I increased the memory timings to 4-4-4-12-1T and OC'd the system to 3.6 GHz.

For some reason (I suspect the relatively large amount of L2 cache), memory performance does not have a major effect of system performance. Oh, don't get me wrong. The difference between high speed "gaming" RAM and low spec "value RAM" is noticeable in a well tuned Core2 system.

!