phenom II

[gammaray]

is there an overclocking guide for the Phenom II on this board?

 

[WhoBeDaPlaya]

Black / non-Black, X2/X3/X4, need to unlock cores, etc?

 

[ZipSpeed]

This is the one I used when I was learning how to OC my 1055T.

http://www.overclockers.com/forums/showthread.php?t=596023

 

[gammaray]

Black / non-Black, X2/X3/X4, need to unlock cores, etc?

well, i was asking in general, but to be specific, BE X3, no need to unlock cores, Heka 2.8Ghz

 

[f4phantom2500]

well, i was asking in general, but to be specific, BE X3, no need to unlock cores, Heka 2.8Ghz

BE is super duper easy. just increase the cpu multiplier until you hit a wall, then start giving it a bit more cpu voltage up til 1.4~1.45v (i don't go past 1.4, but the consensus seems to be that 1.45 is safe for 24/7 operation), further pushing the cpu multiplier. at this point, you can stop, or you can try to make it more efficient. that is to say, if you had to give it .1 extra volt for a 100mhz overclock, i personally would just drop it back down take the 100mhz "loss" (which would be practically unnoticeable) for the lower voltage.

 

[gammaray]

BE is super duper easy. just increase the cpu multiplier until you hit a wall, then start giving it a bit more cpu voltage up til 1.4~1.45v (i don't go past 1.4, but the consensus seems to be that 1.45 is safe for 24/7 operation), further pushing the cpu multiplier. at this point, you can stop, or you can try to make it more efficient. that is to say, if you had to give it .1 extra volt for a 100mhz overclock, i personally would just drop it back down take the 100mhz "loss" (which would be practically unnoticeable) for the lower voltage.

for now i stand @ 3.3 Ghz without voltage bump. i increased the FSB to 300, multi reduced to 11, and 1600Mhz ram is running @ 1600...ram ratio 8:3

 

[drizek]

Use PhenomMsrTweaker.

You can choose between three profiles, Balanced, Power saver and performance. You can set 5 different P-states and set up the profiles to know which they can use.

I overclocked the bus speed to 207mhz from 200 in the BIOS, and so I get 3.63GHz with a 17.5multiplier at 1.4875V, ranging down to 933MHz at .8125V.

Then I set it up so that the 1.4875V is not available on the power saver mode, and it tops out at 3.2GHz at stock volts. Seeing as how you can hit 3.3GHz at stock, you should be able to go past 3.6. I've taken the voltage past 1.5 by quite a lot and could never get it to be stable at 3.7GHz or higher.

 

[gammaray]

Use PhenomMsrTweaker.

You can choose between three profiles, Balanced, Power saver and performance. You can set 5 different P-states and set up the profiles to know which they can use.

I overclocked the bus speed to 207mhz from 200 in the BIOS, and so I get 3.63GHz with a 17.5multiplier at 1.4875V, ranging down to 933MHz at .8125V.

Then I set it up so that the 1.4875V is not available on the power saver mode, and it tops out at 3.2GHz at stock volts. Seeing as how you can hit 3.3GHz at stock, you should be able to go past 3.6. I've taken the voltage past 1.5 by quite a lot and could never get it to be stable at 3.7GHz or higher.

interesting!

but i don't wanna play with voltage for now. Was just wondering if an overclocking guide for phenom II was on Anandtech so i could read further into it and get more knowledgeable

 

[drizek]

I don't remember seeing a specific guide on AT, but I googled and found some on other site before doing my OC. I think I heard about PhenomMsrTweaker on the forums here. Other people also use K10Stat which kinda does the same thing.

 

[Rhezuss]

Honestly, with the Black Edition it's as simple as it can be. I purchased a Phenom II X4 955 running stock at 3.2GHz and in 15 seconds I got in the BIOS, upped the multiplier to get it to 3.6GHz, rebooted and enjoying it since.

The important thing though is to get a good HSF before overclocking.

 

[JimmiG]

OC'ing a BE is easy in theory but in practice it's mostly frustrating. Mine won't go past 3.4 GHz at stock voltage, and even then it reaches 54C at full load in the summer, so there isn't any room to up the voltage. That's with a huge Zalman cooler, too.

 

[deimos3428]

My X4 955 hits 3.5Ghz at stock and roughly +100Mhz/+0.05v thereafter. My X3 710 maxed out at about 3.2Ghz at stock, and I could likewise push it up another 300Mhz to 3.5Ghz with voltage. I think those are fairly typical non-amazing results.

OP: Since you have a BE, for the same result (3300Mhz CPU/1600Mhz RAM) you could just leave the bus and RAM ratio alone (200Mhz, 4:1) and just raise the CPU multiplier to 16.5x. Then creep the FSB up 1Mhz at a time to get slightly better performance, if you like. I'd second Dolk's guide as ZipSpeed posted above.

 

[bigpimpatl]

just up the multiplier on the stock voltage, test each time with prime95. then up the voltage to the next level. You never told us what kind of board you have.

I have a phenom X2 unlocked to X4, then raised to 3.5ghz i believe. After that it was unstable no matter what I did. I have good cooling too, a CM hyper 212+ and ton of fans in an antec 300.

 

[fffblackmage]

I have a phenom X2 unlocked to X4, then raised to 3.5ghz i believe. After that it was unstable no matter what I did. I have good cooling too, a CM hyper 212+ and ton of fans in an antec 300.

Same here. 3.5GHz is pretty much the highest I can get with 100% confidence in stability. I could get 3.6GHz, but it's not 100% stable, and my computer refuses to boot any higher than that.

3.5GHz or so seems very typical for C2 Phenom II's.

 

[repoman0]

Use PhenomMsrTweaker.

You can choose between three profiles, Balanced, Power saver and performance. You can set 5 different P-states and set up the profiles to know which they can use.

I overclocked the bus speed to 207mhz from 200 in the BIOS, and so I get 3.63GHz with a 17.5multiplier at 1.4875V, ranging down to 933MHz at .8125V.

Then I set it up so that the 1.4875V is not available on the power saver mode, and it tops out at 3.2GHz at stock volts. Seeing as how you can hit 3.3GHz at stock, you should be able to go past 3.6. I've taken the voltage past 1.5 by quite a lot and could never get it to be stable at 3.7GHz or higher.

+1 on this, more phenom II users should know about this tool. I use 1.6GHz with 0.8V at idle, using less power than default 800Mhz/~0.93V CnQ settings. Then it ramps up to 3.6GHz with 1.3V when needed.

 

[gammaray]

just up the multiplier on the stock voltage, test each time with prime95. then up the voltage to the next level. You never told us what kind of board you have.

I have a phenom X2 unlocked to X4, then raised to 3.5ghz i believe. After that it was unstable no matter what I did. I have good cooling too, a CM hyper 212+ and ton of fans in an antec 300.

MSI gd70 790fx,

yes, you're right, whoever wrote it, 200FSB 4:1 with RAM would work also.