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[Official] ASUS M2N-SLI and M2N32-SLI Club! - Page 905

post #9041 of 12343
Gyro,

I see you haven't moved to SSD yet. Are you aware of any known issues with Sandforce-2 controllers on your board pushing SATA-3 link speeds to full potential?

Thanks and Cheers
post #9042 of 12343
Hey Swizz, I tried every possible setting and no way will the RAM OC on this mobo!
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post #9043 of 12343
Quote:
Originally Posted by Dale-C View Post
Hey Swizz, I tried every possible setting and no way will the RAM OC on this mobo!
Too bad. I guess you must be unlucky and have gotten a particularly bad motherboard then. High clock speeds are possible:
http://valid.canardpc.com/show_oc.php?id=1977834
Have you tried using different CPUs?
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post #9044 of 12343
I have benchmarked my OCZ Agility 2 40GB (SF-1200 based) SSD using different controllers. Here are the results.

M2N32 SLI Deluxe + nforce controller:




M2N32 SLI+ nforce controller with the NB-SB HT link reference clock overclocked to 250MHz & PCI bus overclocked 10MHz.
A little bit faster than with stock clock speeds:



M2N32 SLI Deluxe + onboard Sil3132 controller.
It looks like this controller is connected to the PCI bus and
thus limited to 133MB/s:



M2N32 SLI Deluxe + Promise SATA2 PCI controller.
For some reason this controller performs horribly bad:



Asus Crosshair IV + SB850 in AHCI mode.
Note: I am using a faster CPU when benchmarking on this board,
so the difference between this controller and nforce 590 controller
may be a little smaller.





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post #9045 of 12343
Yea my M2N32 has been dodgy since day 1, can't OC any better than my old 570 chipset mobo!
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post #9046 of 12343
Quote:
Originally Posted by DrSwizz View Post
I have benchmarked my OCZ Agility 2 40GB (SF-1200 based) SSD using different controllers. Here are the results.

M2N32 SLI+ nforce controller with the NB-SB HT link reference clock overclocked to 250MHz & PCI bus overclocked 10MHz.
A little bit faster than with stock clock speeds:

M2N32 SLI Deluxe + onboard Sil3132 controller.
It looks like this controller is connected to the PCI bus and
thus limited to 133MB/s:
I agree with all your conclusions. For the SiL3132, either it's connected to PCI bus as you say, or it's wanting for a BIOS update but there doesn't appear to be any way to do so.

Two quick questions.

First, do you find that running HTbus at 250 vs say 254 allows you to OC the processor better (i.e. more stable).

How did you OC the PCI bus. The only controls I've seen for this are in Nvidia control panel. Does this 10% allow for a reasonably stable system?
post #9047 of 12343
Quote:
Originally Posted by gr8sho View Post
I agree with all your conclusions. For the SiL3132, either it's connected to PCI bus as you say, or it's wanting for a BIOS update but there doesn't appear to be any way to do so.

Two quick questions.

First, do you find that running HTbus at 250 vs say 254 allows you to OC the processor better (i.e. more stable).

How did you OC the PCI bus. The only controls I've seen for this are in Nvidia control panel. Does this 10% allow for a reasonably stable system?


The HT bus I overclocked in SSD benchmark above is the HT bus on motherboard itself. Apparently nvidia uses a HT bus between the NB and SB, it is unrelated to the HT bus between the CPU and motherboard.

As for overclocking the CPU HT bus it seems that it is more difficult to overclock the Phenom II CPU using the HT bus, at least if you want to overclock the memory aggressively as well. I guess that is because the NB is more complex on the Phenom IIs than on other CPUs.

I used an old program called "clockgen" overclock the PCI bus. It appears that the PCIe and PCI buses are linked together so you can change the PCIe setting in the BIOS to overclock the PCI bus too.
I did overclock the PCI bus 10MHz, that is 30% and yes it seemed to stable. I have experimented with overclocking PCI/PCIe before on the M2N* boards before and it does not seem to cause any problems unless you overclock very much. You usually gain very little performance though, so it really is not worth it imho.
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post #9048 of 12343
Ok. I just seemed to remember you liked pushing HTbus up to 300MHz and beyond. I can only operate around 250ish and I know others with these processors are in the same range. And it's fine if that's the limit. The system is quite snappy this way.
post #9049 of 12343
Quote:
Originally Posted by gr8sho View Post
Ok. I just seemed to remember you liked pushing HTbus up to 300MHz and beyond. I can only operate around 250ish and I know others with these processors are in the same range. And it's fine if that's the limit. The system is quite snappy this way.
You are correct, I have clocked way past 300, but that has mostly been with the Athlon & Sempron CPUs. Your motherboard could probably clock past 300 with an Athlon II too.
When I have set up my system with a Phenom II for everyday usage, wanting reasonably high speed for CPU, NB/L3 cache and memory I have not been able to clock the HT all the way to 300.
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post #9050 of 12343
I don't think having the HT speed anything past stock will give you any more performance, or will it?

Also DrSwizz, what BIOS were you using for that OC for the Sempron and RAM?
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