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Phenom II C3 memory questions. - Page 2

post #11 of 15
Yep.

I've got a sweet pair of OCZ EB Platinums that rate stock voltage of 1.8v @ 1600-7-6-6-21-27.
    
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post #12 of 15
try dropping that 7 to 6 and if it does it its probly hypers ... if thats stable drop the 21 to 18 and test.
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post #13 of 15
Quote:
Originally Posted by Popple View Post
They told me to use 1.65v max for 1600mhz 8-8-8. What year was that tech support conversation from?
Why would they tell you 1.65v for 1600Mhz at 8-8-8 if you are having problems? Especially when your memory is rated at 9-9-9 at 1600Mhz?

Anyhoo, it was about 18 months ago and without running my memory (F3-12800CL8-2GBTD) at 1.9v, nb and ht at 1.4v and sb at 1.35v, my rig would continually crash when set to 1600Mhz.

Also, rather then just set the memory speed to 800/1600, leave it at 667/1333 and then increase your bus speed to 240 to overclock your ram back up to 800/1600 again,

Then for testing, set your CPU multiplier to 15x for a CPU speed of 3.6Ghz and set vcore to 1.5v and everything should be pretty stable.

Then if you want to overclock further, just bump the CPU multiplier up 0.5 at a time and bump vcore up until it is stable again - but keep an eye on CPU temp, you want it under 55C under full load.

Also, if your mobo does not have heatsinks on your mosfets (near the CPU socket) you shouldn't try and overclock too much or the mosfets will overheat and your mobo will most likely fail.

It might be good to keep your vcore under 1.5250v so your CPU doesn't try to pull more then ~200W.
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post #14 of 15
Thread Starter 
How much more wear does increasing the NB freq cause to the hardware? The whole point of getting a black is to not mess with the base clocks.

Also, if I leave the NB at 2000, is fast ram still necessary?

BTW I got another 4gb now I have 4x2 of the ram.
post #15 of 15
Quote:
Originally Posted by Popple View Post
How much more wear does increasing the NB freq cause to the hardware? The whole point of getting a black is to not mess with the base clocks.
Black edition will allow you to overclock via multiplier, but that doesn't mean that is all you should do

Also, if I leave the NB at 2000, is fast ram still necessary?[/quote]
You leave HT freq near 2000Mhz, but you should try and find the fastest stable CPU/NB freq you can.

If you followed my suggestion above, you'd end up with a CPU freq of 3.6Ghz, your ram would be running at 1600Mhz and everything should be nice and stable.

Considering you can't even run your ram at 1600 stable, I'd think getting it stable would be your first and main goal. Once you find a stable point, from there you can increase CPU/NB freq and your CPU multiplier as much as you like - but at least you'll have a stable point to fall back to.

Quote:
Originally Posted by Popple View Post
BTW I got another 4gb now I have 4x2 of the ram.
Then if you want to run all 4x 2GB sticks at 1600 with a phenom II cpu and you want it be stable, you really should consider bumping dimm voltage up to 1.9v.

If 1.9v scares you, then either drop the memory speed and run 1.7v-1.8v, or run 2x 2GB sticks instead.
Edited by un-nefer - 3/30/11 at 6:39pm
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