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AMD® Phenom™ II Overclocking Thread

Hey lamps, not sure if I missed you but welcome to the thread! :) . . . 3.7GHz @ stock volts is nice! . . . try and get some Prime Blending done post up some screenies! . . . . btw did you read the "Welcome Post" by any chance? :D . . . sorry to be a nag but can you delete the excessive quote in your last post #1238
 
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Is the stock voltage of everyones IMC 1.175v ? . . . On two AII chips I've tested the IMC can run up to 2.5GHz using this standard voltage but much over that requires a little bump to CPU-NB voltage . . . has anyone done any "isolated" CPU-NB testing to see how the voltage scales? . . . I'm still not sure if the Denebs Level 3 cache gets powered by vCore or CPU-NB voltage? (or a bit of both?) :D
 
Gareth: Yeah I meant the "Stock" CPU-NB voltage! :) . . . 1.1v you say? . . . very nice! :D . . . what I was saying is . . has anybody done ani "isolated" CPU-NB (IMC) testing, i.e set the whole system to stock and just overclock the CPU-NB clock? . . . obviously not you Gareth as you have bigger fish to fry! . . I really hope you figure out whats going on with your ram fella as you been hassled by that for over a month now? . . . Did you consider trying a new set of RAM? . . . going back a few posts we were talking about the temps of you system, I didn't realise you had a swish Zalman temp monitor with probes wired up directly, awesome, good luck man I hope you get a breakthrough soon! :cool:

eddiew: Overclocking the CPU-NB helps shift the huge amount of data around, generally the higher the better! . . . I'm waiting for someone to get some 3GHz CPU-NB clocks posted, that would be amazing! :) . . . If you want a "synthetic" testing tool to help you understand how faster IMC speeds improve data transfer then download EVEREST Ultimate Edition v5.30 (Trial) . . . you can run it from an unzipped folder, run it and find this test . . .

everestultimate.gif


We spoke a little about this subject before back around post #579 in case you missed it! :cool:
 
Gareth, have you eyed up a replacement kit yet? . . . what would be the best DDR3 for your system do you think?

Cold Ram huh! . . . so probably not gonna be an overheating issue? :D . . . still RAM or your home leccy I'd say! :)
 
Nice result Martini1991 :) . . . good to see a BE edition owner tinkering with the HT Ref. Clock . . . don't forget to include your name in the screenies! :cool:

Hello kellaway225, welcome to the thread! . . . Please read the "Welcome Post" and preferably the whole thread to get an idea of what to do, if there is anything you don't understand while reading the thread then ask away!
 
Hi kellaway225 :) . . . did you see post #1289 . . . don't worry about overclocking your graphics card right now, keep life simple and just work on the main system overclock . . . . how much of this thread have you read btw?
 
Hello jv2907 and welcome to the thread, please read the "Welcome Post" and preferably the whole thread before you start . . . if after that you have some questions or something you don't understand then please ask away! . . . . btw your sig is awesome but sadly it's 90% too tall under current forum rules (400 x 75 pixels) :D

Cooper: As has already been stated there are performance gains to be had from overclocking the CPU-NB but it's probably worth concentrating on your main CPU clock first, get some priming done and then when your happy everything is hunky dory then you can begin working on the CPU-NB overclocking . . . . have you posted up any Stability screenies yet? :)

Fonz-Valo: Nice to see you back and looks like you got a bit more clocking to do! :p . . . is it possible in your future screenies to edit the size down a bit by clumping the technical windows closer together and chopping out excessive desktop! :D . . . . 3.8GHz CPU and 2.6GHz CPU-NB would be tasty! :cool:
 
Oh I see? . . . um didn't hear about an OverDrive problem before? . . . . . . should work fine with your board so something is amiss there . . . maybe in the meantime you can get some BIOS action going on?
 
liamcrane, I'm using the same board as you as well as DDR2-1066 memory! :)

I've got both sticks of RAM next to each other in the slots nearest the CPU . . . to get the memory running at full speed leave the Memory frequency BIOS setting at [Auto] which should give a 2:1 ratio, then change the CPU-NB/HT-Link multi to [x8] and you should be sorted to change the Ht Ref clock from [200] all the way to [266] . . . . you will probably need to lower the CPU multi also with the higher Ht Ref Clock . . .

am2ddr21066.jpg
 
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Famas: Hello there and welcome to the thread, please read the "Welcome post" and enjoy your stay :) . . . I just read your post (#1361) and admit that sounds like a strange problem you have there? :p . . . have you reset the system back to stock to see if Prime runs ok? . . . I had a similar wierd issue with the CPU multi dropping to [x4] while Prime was Blending, turned out to be a heat related issue and by adding a 120mm fan over the PWM's the problem has gone away . . .

Technics: nice results there and don't forget to include your name in the screenshots! :)

thingemajib: Also some nice results there, 4GHz quad from a 555, happy camper no doubt! :) . . . don't forget to include your name in the screenshots!

liamcrane: Yes by changing the base Ht Ref Clock from 200MHz to 266MHz you will be effecting *everything*, CPU MHz, HT-Link Mhz, CPU-NB MHz etc . . . . the [x8] multi on CPU-NB/HT-Link will give both of them a base 2128MHz speed which should be fine for starters (both of them run up to 2.5GHz using stock voltage on my system), you will just need to re-work your CPU clock out again using multiples of 266 . . . .
 
Liam: The Memory Voltage/Frequency/Timings are all on [Auto] . . . I tested the Kingston in my older LGA775 system and they ran DDR2-1066 speeds @ 1.8vDimm . . . apparently some sticks need 2.1/2.2volts? . . . anyway [Auto] is working well here! :)
 
famas, with a Black Edition chip overclocking should be "really" easy if you take your time and take it step by step, for the basics I see no reason why you can't set all voltages to [Auto] with the exception of vCore which will need to be adjusted upwards according to the CPU frequency.

Should be 18x200 with the correct vCore = 3.6GHz . . . once that is worked out and tested for stability then you can either go for more sCPU speed or leave it at an easy 3.6GHz and begin playing with the CPU-NB frequency and volts . . . I;m not sure why one of the cores on your chip is dropping off under prime load? . . . have you reset the system to stock to see if Prime works correctly? . . . If it works fine at stock but goes weird when overclocked then its either a voltage issue or perhaps the PWM/Mosfets overheating?
 
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:
 
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