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[OFFICIAL] AMD Athlon II X4 Club - Page 9

post #81 of 1595
I'm surprised these CPUs tolerate such a highly out of spec HT link and NB speed. I've tried keeping mine closer to 2000 MHz just to avoid possible instability from that sector. How much of a difference does it make to performance to increase these values?
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post #82 of 1595
Quote:
Originally Posted by Quantum Reality View Post
I'm surprised these CPUs tolerate such a highly out of spec HT link and NB speed. I've tried keeping mine closer to 2000 MHz just to avoid possible instability from that sector. How much of a difference does it make to performance to increase these values?
My understanding was that increasing the CPU-NB could help stabilize high overclocks especially if the ram is also overclocked. I think the HT link shouldn't get too high. I think somewhere around 2.2 is the max. Mine is slightly over 2.2. It's prime stable for 12 hours.
post #83 of 1595
Thread Starter 
Quote:
Originally Posted by hermitmaster View Post
For the purposes of the club, is a Corsair H50 considered water or air? I'll be updating in a bit.
Well it's technically a water cooler so let's call it Water for this purpose.

Also, updated the spreadsheet with all info posted. Very very nice job hitting 3.6Ghz with only 1.36v...that's pretty impressive with that cooler. What's your temps? Also, fill out your system specs as well here Exactopposite

http://www.overclock.net/specs.php?do=addsystem
Edited by KamuiRSX - 11/9/09 at 10:09pm
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post #84 of 1595
bad news, won't have info for my watercooling up tonight, took too long putting the new board and the wataircooling in... it'll be tomorrow. hermitmaster, since you're using your fan as an intake (a plan to also), do you have the corsair sticker facing the inside of the box or out?
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post #85 of 1595
Sticker faces the rad.
post #86 of 1595
fired it up before i went to bed, it's on backwards.
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post #87 of 1595
just looked above, my ram's running at 1333mhz man, not sub-400, lol.
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post #88 of 1595
gonna pick up a couple more 120mm fans to set-up push/pull and maybe cut a hole in the top of my box for an exhaust...time to get creative!

EDIT: man i'm a post whore!
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post #89 of 1595
Quote:
Originally Posted by Quantum Reality View Post
I'm surprised these CPUs tolerate such a highly out of spec HT link and NB speed. I've tried keeping mine closer to 2000 MHz just to avoid possible instability from that sector. How much of a difference does it make to performance to increase these values?
I've always heard that a higher HT Link won't show any performance difference unless it's a drastic change (such as from 1000MHz to 2000MHz).
The CPU-NB clock is also the speed of the integrated memory controller. A couple hundred MHz or more increase in this value should boost memory bandwidth a little.
These latest AMD cpu's will overclock the crap outta the CPU-NB clock. I've got 2600MHz stable on this Athlon II 630, and I accomplished 2860MHz stable CPU-NB clock on the Phenom II X3 720. As a lot of these Athlon II's are locked Deneb cores, I would expect similar overclocks and performance gains from the uncore frequencies.
Also, most motherboards with AM3 support will natively run 2600MHz HT Link. So if your cpu can handle it the rest of the system should already have the headroom.

In summary, I would say play with the NB speed as much as you'd like until you reach a point of instability, but HT link isn't really worth much except bragging rights and the pleasure of seeing high clock speeds.
Edited by metal_gunjee - 11/10/09 at 11:56am
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post #90 of 1595
^^ +1
thanks for the info! great stuff, will mess with it tonight!
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Celica
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Hard DriveOptical DriveOSMonitor
RiData 64Gb SSD/Seagate 1.5Tb LG BD-RE / Generic DVD-RAM Windows7 Ultimate 64-bit 24.5" LG 1080p LCD & 20" HP 4:3 LCD 
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