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Phenom II Overclocking Guide - Page 20

post #191 of 253
So here's my settings so far. Stable 2 hours Prime95 blend test.

CPU: 945 Phenom II X4 Deneb 95 watts
STEPPING: C2
FREQUENCY: 3600 MHZ
REF*MULTI: 240*15
CPU VOLTAGE: 1.46250
CPU-NB: 2160 (9x multiplier)
CPU-NB VOLTAGE: 1.25
SB CHIPSET VOLTAGE: 1.22
HT LINK FREQUENCY: 1800 MHZ
HT LINK VOLTAGE: 1.215
RAM: OCZ Reapers 4GB DDR2 PC-6400 downclocked to 333mhz /
5-5-5-15-24 @ 800mhz

RAM VOLTAGE: 1.905
TEMPERATURE: 32C IDLE (with cool and quiet disabled) - 54C (100% load 2 hours Prime95)
MOTHERBOARD: ASUS M4A785-M
COOLING: Zalman 9500A 92mm
OS: Windows 7 Professional x86



Peace.........
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post #192 of 253
Quote:
Originally Posted by piranhamoose View Post
So here's my settings so far. Stable 2 hours Prime95 blend test.

CPU: 945 Phenom II X4 Deneb 95 watts
STEPPING: C2
FREQUENCY: 3600 MHZ
REF*MULTI: 240*15
CPU VOLTAGE: 1.46250
CPU-NB: 2160 (9x multiplier)
CPU-NB VOLTAGE: 1.25
SB CHIPSET VOLTAGE: 1.22
HT LINK FREQUENCY: 1800 MHZ
HT LINK VOLTAGE: 1.215
RAM: OCZ Reapers 4GB DDR2 PC-6400 downclocked to 333mhz /
5-5-5-15-24 @ 800mhz

RAM VOLTAGE: 1.905
TEMPERATURE: 32C IDLE (with cool and quiet disabled) - 54C (100% load 2 hours Prime95)
MOTHERBOARD: ASUS M4A785-M
COOLING: Zalman 9500A 92mm
OS: Windows 7 Professional x86



Peace.........
Are you locking your RAM? Try setting the speed at auto until you find a stable OC, and then you can fiddle with your divider if you want to lock you RAM. I have mine set to auto, otherwise it won't post.

If it doesn't stay stable, try upping vcore again. Either that or your RAM voltage, and finally try your NB at 1.3 (not CPU-NB).
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post #193 of 253
Quote:
Originally Posted by esocid View Post
Are you locking your RAM? Try setting the speed at auto until you find a stable OC, and then you can fiddle with your divider if you want to lock you RAM. I have mine set to auto, otherwise it won't post.

If it doesn't stay stable, try upping vcore again. Either that or your RAM voltage, and finally try your NB at 1.3 (not CPU-NB).

Locking my RAM? What does that mean? But, everything's stable so far with these settings. It's just that i stopped Prime95 blend test after 2 hours thinking that would be enough. You're saying >2 hours of testing to determine stability? RAM stock timing for 333mhz is 4-5-5-12-20, since FSB overclock runs my RAM at 400mhz, i figured i'd set the stock timing for that frequency and up the voltage. I also ran Memtest for 2 hours at the above settings before oc'ing and passed. So far so good.

Ill run Prime95 all night tonight at these settings to really determine stability. Is that your advice?

Peace......
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post #194 of 253
Quote:
Originally Posted by piranhamoose View Post
Locking my RAM? What does that mean? But, everything's stable so far with these settings. It's just that i stopped Prime95 blend test after 2 hours thinking that would be enough. You're saying >2 hours of testing to determine stability? RAM stock timing for 333mhz is 4-5-5-12-20, since FSB overclock runs my RAM at 400mhz, i figured i'd set the stock timing for that frequency and up the voltage. I also ran Memtest for 2 hours at the above settings before oc'ing and passed. So far so good.

Ill run Prime95 all night tonight at these settings to really determine stability. Is that your advice?

Peace......
If it's stable so far, it's probably good. By locking, I meant setting the speed of your RAM, rather than setting it to auto. 2 hours is a good sign, so if it runs fine through the night I'd call it a stable OC.
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post #195 of 253
+1 for your efforts. Great job breaking it all down.
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post #196 of 253
What would you guess I would be able to safely OC my phII 955 to based on my sig's info? I am hoping to hit 4.0 if possible, but I dont wanna risk it by going an extra .1 or .2.

I have never done anything like this before (and I acutally just ordered my stuff today and havent even received/built it) but I would really like to give it a shot, and my buddy is going to help me build the computer and he is really computer savvy so with his help I should be able to get this OC thing down...
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post #197 of 253
its kinda wierd... but i have the old Phenom II x4 920 (2.8ghz)... and i have hit the 3.7 ghz max for the cpu. Since it is a non BE has AMD limited it to that? because i just cannot get it any farther...
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post #198 of 253
My advice:

Go sell that 5770 used on ebay and get around 100 bucks or more out of it.

Put your GTX 480 in your rig, and leave your CPU @ Stock Speeds.

Once you are done with that, play any game you can find and notice that there is no need for overclocking your rig.
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post #199 of 253
Thread Starter 
Quote:
Originally Posted by N2Gaming View Post
+1 for your efforts. Great job breaking it all down.
Agreed, thanks for doing this when I'm not around (which atm is pretty much all the time as you can tell, school is absolutely insane). + rep man.

@ikem:

If you're running a PhII 920, then 3.7GHz is a pretty great OC. AMD does not limit the chips by imposing a hard limit, it is generally limited by how good of a piece of silicon your chip contains. At some point, reguardless of whether or not the chip was a BE or not, the chip will just reach its max OC with your current configuration.

Also, there are architectural limits for speeds as well, and for a first gen PhII, that is a nice OC (most were in the 3.6 - 3.8GHz range).

Hopefully that helps you out some.

@schawks73:
Like what I just said, most PhII's will achieve in the 3.8GHz range (+- 200MHz or so for the quads). I would wait to see what your chip is like, but 4GHz is possible. Just make sure that you walk through this (and/or other guides) and stay within safe temps and voltages and you should be good to go.

Cheers!
post #200 of 253
Quote:
Originally Posted by logan View Post
@schawks73:
Like what I just said, most PhII's will achieve in the 3.8GHz range (+- 200MHz or so for the quads). I would wait to see what your chip is like, but 4GHz is possible. Just make sure that you walk through this (and/or other guides) and stay within safe temps and voltages and you should be good to go.

Cheers!
Thanks for the input, I will definitely study this guide and do more research as the computer is in route.

Thanks again!
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