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AMD® Phenom™ II Overclocking Thread

Thanks wayne that indeed worked dont know why it wont work when i change the memory freq to 533, I think i might just keep my ram at 800mhz dont really think im gonna notice to much performance increase in having it run at 1066, im gonna try and reach my 3.6ghz using just the mulit with the fsb back at stock 200, i think one of the reasons my 3.6 keeps rebooting my machine is to do with my motherboard suffering from vdroop, i set it to 1.35 in the bios and cpuz shows it up and down between 1.30-1.328 so i might have to give it a bit over 1.4v to keep it stable, if its not that then i can only consider the mosfets over heating but my case has super air flow, 3.4 idle at 28c and under prime load 37c
 
Liam: When I first got that board I did try to set the memory to 533 in the BIOS but it wanted the timings at 7-7-7-x . . . Leaving the memory at the BIOS default DDR2-800 just means your using the [2:1] memory divider i.e the memory speed will always be "Double" what the Ht ref clock is set to . . . I would say when your happy with the CPU and CPU-NB clocking then come back and fine tune your memory up from DDR2-800 to DDR2-1066 as you got the fast RAM, for the moment its fair enough to leave it while you concentrate on other things! :)

3.6GHz (3600/2000/2000/800) should be quite easy with all volts on [Auto] except the processor, it sounds like your not giving the chip enough voltage? . . . is 1.35vCore enough for 3.6GHz (18x200), to help with that vDrop/vDroop then set LoadLine Callibration to 19% approx . . then you get the voltage that you set (almost) and just keep upping the vCore until you get 8 hours Prime Blend stable . . . your temps are good so you should have no worries . . . . once you progress with your overclock you may need to consider a 92mm/120mm fan to cool the boards power circuitry, for the moment though you should be fine, couldn't be easier, set CPU multi, LLC, adjust vCore, test, produce screenies, apply name and publish! :cool:
 
Any ideas what i will need to change voltage wise and everything to get a 3.5Ghz overclock?
with my 955be and my board is an Asus m4a875dt - v evo (something like that anyway)
 
kellaway225, the whole thread is Deneb processors? . . . .ever single person posting results in this thread are using "almost" identical chips and even though people are using different motherboards the settings are the same (albeit some with different names in BIOS) . . . what ever processor speed you want just divide the figure by 200 and then set the processor multi to the nearest match i.e 3500 divide by 200 = 17.5 . . . all you need to do is set the CPU multi and set the vCore, thats it, two settings, the vCore will vary from chip to chip but say you start at 1.35vCore and then slowly nudge it upwards until you find stabilty! . . . . if you look at peoples screenshots you should be able to see the vCore figure showing in CPU-z, this should be close to what you will need if you want to match the same speed . . just keep an eye on temps and get cracking! :cool:
 
Got a unlocked X2 550 BE here, all four cores working nicely...

Im trying to get 266Mhz FSB stable (it's my brothers PC so im not going all out kick ass speed - stock cooler too)

Memory is Corsair XMS2 PC8500 CAS 5, and works fine at 1066Mhz at 2.1V
Motherboard is a Asus M4A77D.

Current settings as are follows:

CPU Multi: 10x
CPU V: 1.3
Memory: 2:1 (so at 266Mhz FSB it will be 1066Mhz Memory speed, IE stock for mem - will tighten timings later)


(While I work on chipset, mem, etc)

CPU-NB voltage = 1.2250v
NB Multi= 10x (2660 Mhz)
HTT voltage = 1.2v
HTT Multi = 7x (1862Mhz)
SB voltage = Auto (Is this the same as chipset voltage at the bottom of the list!?)
NB voltage = 1.1v
CPU VDD = 2.5v

Keeps failing OCCT with errors on random cores, I don't really have time to tinker (leave in 3 days!) so can anyone suggest what the issue is?

Last thing I overclocked was a E6600 Conroe on a Asus P5B-D 2 years ago :o
 
Hello Concorde Rules, long time! :) . . . those settings look pretty good . . . are you giving the readings for all those volts or is that what you have set in BIOS? . . . the only two voltages that look like they need setting manually would be vCore and vCPU-NB? . . . all the rest should work fine at the speeds you have set on [Auto] . . . . the CPU-NB should clock up to 2.5GHz using lowish volts (or even auto) but beyond 2.5GHz then 1.225vCPU-NB should be a good starting point for 2.66GHz . . . . have you tried giving the chip some more plain-jane vCore?

[edit] I just saw you state the CPU multi as "10x" . . . 10 x 266 = 2660MHz Processor? :confused:
 
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Ah Big.Wayne, I remember that name from somewhere ;)

Has been a while, gone to uni and hence my fun and games of overclocking can't really go on meaning i've gone mac only (although I think I might steal a X2, SLi-DR, X1900XTX off my bro! :p)

I've knocked the CPU down to reduce any chance of CPU instability effecting the results, and hence the 10x multi, or it might be 12x, can't remember, doing from memory atm!

So you say I should set everything back to auto apart from CPU VCore, CPU-NB which 1.225V should easily sort 266Mhz out? and then 2.1V on the memory...[BIOS Settings, barely any sensors are read on this motherboard, in contrast the Mac Pro shows about 30 voltage sensors!]

I have to ask if im going about this the right way? Back in my day it was FSB overclocking, none of this AMD Overdrive windows overclocking malarky!!!

It seems nearly everything has a multiplier now and I could leave the FSB at 200 and just do it that way, but thats no fun! :p
 
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Hello Concorde Rules, can I point you towards the "Welcome Post" please! :D . . .

With that low CPU clock you could probably use [Auto] vCore, if you drop the CPU-NB multi to [x8] that should run fine on [Auto] also . . . basically all volts on [Auto] . . .you may need to add some vCore and you may need to add some CPU-NB voltage depending on what multi you set! :cool:
 
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hahaha, I skipped right over that as it didn't contain any technical information :p post is corrected ;) was wondering why you were yellowing names.

Good job on the thread, btw. If I had more time on my hands i'd give a proper read through but this is speed overclocking ha ha.
 
Concorde Rules, its any colour really or no colour at all! :p

AMD® Phenom™ II X2 550

With DDR2-1066 I would probably try 3192MHz (12x266) with CPU-NB/HT-Link muti dropped to [x8] for basic testing . . . that should work entirely on [auto] volts for everything with the possible exception of vCore? . . . . once you worked the basic CPU-Frequency vs vCore out you can begin tweaking the other settings (CPU-NB/Ht-Link etc) :cool:
 
Ok dokey, will do that tomorrow then.

Cheers.

I feel all n00bish now on the OC front, I need to get myself back in the flow!

Or maybe buy a 6870 when they come out and be an overclocking guru for that (as I was apparently for the X19x0 series).

Ah I miss the old times :( Overclocking a GT 120 and a 4870 is quite fun tho :p
 
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Just got my chip to 3.6 on stock volts just upping the multi. seems my chip is running to hot for anymore this is using H50 cooler I've reseated it, added fans taken fans away still no joy.

Any thoughts chaps I'm using Asus Crosshair III Formula motherboard thanks.

capturewy.png
 
gareth170 cpu temp (tmpin1) doesn't go above 36c..:D[/QUOTE said:
ta , cleaned heat sink today that was why mine was so warm :p thought it was cause its summers on the way and its getting warmer :D not time to lower the overclocks just yet :)

burtieb1 what case you got ?
Click to expand...
 
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burtieb1, don't use core temp...

use HWMonitor and look at the cpu temp (tmpin0 or tmpin1 depending on motherboard)

ignore the core temp as it's only software generated
 
Well I've just ran Intel burn test using HWMonitor and looking at the temps in TMPIN0 and Its reading 13c lower on the max than core temp so which one do I go with lol.
 
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