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1866MHz or Higher OC'd Ram with AMD CPU??? - Page 2

post #11 of 19
If you're giving your IMC 1.65 volts, you're doing it wrong.
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post #12 of 19
Quote:
Originally Posted by cHaoSphEre View Post
If you're giving your IMC 1.65 volts, you're doing it wrong.
Depends on what RAM you're using, and what platform. I know my system is rated at 1.65v.

900-series chipsets may be different, but I'm not familiar with their specs specifically.
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post #13 of 19
It is doable with a good memory kit, I wasn't really going for high frequency here but came pretty close to 1866 shooting for a good pi time.

    
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post #14 of 19
Thread Starter 
Thank you for all your help...
I appreciate the suggestions.

For those that do not see the my system specs please look just below my post.
There is a complete list of what my system consists of.
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post #15 of 19
Thread Starter 
Quote:
Originally Posted by cHaoSphEre View Post
Oh and to actually see if your system is capable of it, you first need to work out if you can push your base clock high enough. Some boards just hate base clock increases...

Start by putting the base clock up to 250 (what you'd need for 2000Mhz), but downclock the core multiplier, NB and SB so that they all end up at stock*, and stick the RAM on the 1333 or even 1066 setting.

So, for me, my 970 runs at 3500 stock, so at 250 I'd need to set the multiplier at 14 - 250x14 = 3500.

If everything is stable, you can go from there. Crank the RAM up to 1600 (2000 effective) and see what happens. Increase your CPU-NB and NB voltages to get stability. Increase the CPU-NB first, up to ~1.35 max. If this doesn't help, leave it at 1.35 and raise the NB voltage to ~1.35 (all of this is in steps).

If somewhere along the way, that works, back your CPU-NB down until you run into stability, and then put it back up a notch - this is your sweet spot. You don't want to give these things more voltage than they need.

Finally, you can start pushing your CPU and NB higher. Start with the CPU.
Thank you this will help a lot. When I first built the system and went into the BIOS it had the RAM default speed at 1066MHz but the manufacturer's SPD is 1333Mhz. Where do you think I should start from? The default BIOS setting or Corsair's SPD?

Thank you for your help and your time...
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post #16 of 19
Aren't RAM speed limitations based on mobo, not processor? When running 2 sticks my mobo will support 1866 but with 4 sticks it hangs so I have to drop down to 1600.
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APU what?
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post #17 of 19
pointless better use ram on 1600 with 6-8-6 latency than 1866 with 9-10-9 / 9-10-10
    
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post #18 of 19
8/10/8/24@2086 On my 1075T is my max for benchmarks I have been able to reach with only 2 of the 4 sticks installed. That is using Mushkin Enhanced Ridgeback Blacklines, the rare kit with 6/8/6/24 timings at stock speed of 1600. This particular MEM has been bench marked as high as 2600 before on other systems by other bench markers. Not mine... I wish. But to answer your question, yep they do!

You can usually get your system up to 1833 if you really dig into the settings with your motherboard and some quality memory. But remember that timings mean just as much to AMD as speed does. Finding a good 1600Mhz kit or better with excellent timings is a primary objective!

Good luck! If I get a chance to bench before I travel for work again I will post back and give you some numbers.
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post #19 of 19
This is what I am running....but this was after testing three/four kits of ram..all different brands and different timings. And I am no where close to what FTW or Pizzaman can do..

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