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There aren't a great deal of settings that apply to overclocking the RAM on this board.

But:
Z77A-GD65, i7-3770K, 4x4GB Samsung Green, MSI GTX570, Crucial M4 256GB SSD, XFX XXX 850W PSU. Not really much else of relevance I don't think! :)

If you can pick something out that'll sort this out then I'll be a happy man!
 
LadFromWales said:
There aren't a great deal of settings that apply to overclocking the RAM on this board.

But:
Z77A-GD65, i7-3770K, 4x4GB Samsung Green, MSI GTX570, Crucial M4 256GB SSD, XFX XXX 850W PSU. Not really much else of relevance I don't think! :)

If you can pick something out that'll sort this out then I'll be a happy man!
Click to expand...

Hmmm, i assume you have the latest BIOS?

http://www.msi.com/product/mb/Z77A-GD65.html#/?div=BIOS

- Enhance OC ability.
- Improved memory compatibility.
 
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Buckster said:
8 Pack said:
Here are my initial results after a couple of mins tweaking.

DDR2600 Stable on ASUS MVG


could you share some of your MVG settings please ? voltage ? and are you setting timings manually or on auto ?

many thanks
Click to expand...

I will post you up a mem tweak it shot tomorrow then you can see all settings. The Volts are in the screenshot I gave you. Some are AUTO yes but some are set also.
Click to expand...
 
eddiepropane said:
Yeah it seems odd, hopefully a future bios update may help, mine takes longer to post on 2133 but is stable in prime and pi:

21903394e.jpg


Wouldn't pass Pi on 10-10-10-28 timings though and this was using 1.54v with Turbo OC to 4.3 but obv dropped back to low clocks in the screenshot.

Bob.
Click to expand...

The reason it takes longer to post is its memory training. The CPU IMC is training for the memory speed you have installed. If you want to step up speeds ensure it trains for the new speed each and every time. Therefore you get a better attemp at the correct settings when using AUTO in any DRAM timings.
 
I've had some success with my Asus P8Z77-V pro that I couldn't run all 4 dimms in with anything above 1600Mhz.

It turns out that I have settings called "Dram read additional swizzle" & "Dram write additional swizzle" in the Dram timings menu, both of these are on auto by default but they both must be enabling because when I switch them both to disable i can boot into windows at 2400Mhz with all 4 sticks, I ran prime and it wasn't stable so tried 2133mhz and it's looking good.

It's early days and I need to play with the dram volts and timings but one thing for sure is it's definitely these settings enabling that was causing my boot problems, I could boot into windows again and again with them disabled, but as soon as I enable them again my machine wouldn't boot.

Performance wise, according to cinebench with the swizzle settings on I got 9.32pts at 8gig, and 9.29pts with it off but 9.36pts with 16Gb off.

I don't know if this will help the MSI owners but it's worth trying.
 
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8 Pack said:
What are the patriots default timings?? You tried to go 9-11-10-28 2T?????
Click to expand...

8-8-8-24 2T

Wouldn't post at these timings at 2133, but did at 11-11-11-30-2T. Not tried other timings as just needed to see if the CPU/Mobo were refusing point blank to run the RAM at those sort of speeds!

I can't even get a single stick of the Samsung to post at anything above 1866! :(
 
The swizzle settings are probably not your answer. My 2600 and now 2666 runs they are all enabled.These improve performance a fair bit. Disabling can help get over post code 55 but thats about it. It will be another setting. Use 1T for starters. On that Board do you have a setting beneath the CAS latency called DRAM Latency boundary??? Also do you have a tweak mode at the top of this page???
 
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LadFromWales said:
8-8-8-24 2T

Wouldn't post at these timings at 2133, but did at 11-11-11-30-2T. Not tried other timings as just needed to see if the CPU/Mobo were refusing point blank to run the RAM at those sort of speeds!

I can't even get a single stick of the Samsung to post at anything above 1866! :(
Click to expand...

Try 1T ;) oh and what board???
 
That might be the memory mapping,it reads the memory in parallel so there's no delay,it adds 15% to memory performance,I think only asus has that feature
 
Its similar yes. But its only necessary to disable this if your not posting and stuck at code 55. 55 mainly means the CPU IMC is capable but the memory needs tuning. Otherwise leave it on and get better performance. It effects stability very little. If you can post with it on leave it on.
 
8 Pack said:
Try 1T ;) oh and what board???
Click to expand...

I have an MSI Z77A-GD65

No luck above 1800MHz with the samsung sticks, played with timings and voltages to no avail.
Patriot 1600LL RAM got to windows as high as 2133 though I didn't tweak as far down as I could, just proof of concept!

8 Pack, any idea why my system is refusing to work with the Samsung at higher than rated speeds?

Running all four sticks atm at 2133MHz, 10-10-10-25 1T
It won't post every time though. Sometimes it 55's, other times it post's and I get to Windows!
 
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hey all
just upgraded to a ivy build (from Q6600)

Spec:
3570k @ 4.4Ghz 1.24v, max temp in prime95 is 68c on 1 core and low sixties on the other 3 at 100% load
AsRock z77 extreme 6
8Gb samsung green ram
Asus 7950 TOP
corsair H80 Cooler

I am new to overclocking but have managed to get the cpu to 4.4ghz stable with my brothers help (he has a 2500k at 4.3 i think but he dose not OC anything else)
so i need some help with OC'ing the RAM. i am currently at 2000mhz 9-10-10-28 1N 1.45v but when i try 2133mhz at 10-10-10-28 1N at 1.45v i get BSOD and i struggle to get back into bios to change it.
would 1.5v make a difference or do i need to change the timings? also is it worth pushing anymore? it compleats super pi 32m in 7m 36.677s

also can anyone point me in the direction to OCi'ing my 7950?

Thanks
Nova
 
8 Pack said:
The swizzle settings are probably not your answer. My 2600 and now 2666 runs they are all enabled.These improve performance a fair bit. Disabling can help get over post code 55 but thats about it. It will be another setting. Use 1T for starters. On that Board do you have a setting beneath the CAS latency called DRAM Latency boundary??? Also do you have a tweak mode at the top of this page???
Click to expand...

I can't see any of those settings you mentioned, here is my dram timing page....

dram01.jpg

dram02.jpg

dram03.jpg

The fact is my machine won't boot at 2133mhz with swizzle on with 16Gb, but it does with it off. I'll do some benchmark tests and see what difference with it on/off, according to cinebench it's very little, but if it does I'll just call it a day and stick with 8Gb.
 
Managed to get up to 2000mhz with 9-9-9-28 1T @ 1.45v.

Running Prime Blend test and stable so far and the SuperPI loop came down from 7m38s @ 1866mhz to 7m24s. Quite pleased so far, might try for 2133, that would be golden for me!

mem.jpg


Edit: Couldn't get the Prime95 blend test stable with 9-9-9-28 (small fft stable) so obviously was the mem, upped it to 10-10-10-28 and its all good :)
 
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I received a response from MSI, however they simply asked me to try removing two of the sticks. I have sent the following response:

"Hi,
I have tried each memory stick individually; unfortunately it does not make any difference.

I am able to boot at 1600MHz, however anything above that resulting in a failed POST. However, if I put the full 16GB (4x4GB) in an Asus Z77 motherboard it easily boots at 2400MHz!

Other MSI Z77 users are also experiencing the same problem with this memory, which makes me believe it is a compatibility / BIOS issue.

Please see below for more details:

http://forums.overclockers.co.uk/showthread.php?t=18379546

Cheers,

Matt."

I'll keep you posted.
 
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