verification
and here is a CPU-z screenshot:
http://valid.canardpc.com/cache/screenshot/797457.png
Thanks to AMD for supply that great CPU. L:clap:
P.S. This baby is aircooled.... ;)
Printable View
verification
and here is a CPU-z screenshot:
http://valid.canardpc.com/cache/screenshot/797457.png
Thanks to AMD for supply that great CPU. L:clap:
P.S. This baby is aircooled.... ;)
that's just pure luck man a deneb die and it got 4.1ghz, sweet.
Here is some results...
http://img263.imageshack.us/img263/5323/spi1m.png
Look at that 3D Mark score with stock aircooled 4850 @715/1150:
http://hwbot.org/signature.img?iid=276740&thumb=false
CPU score @3830 MHz:
http://img101.imageshack.us/img101/9...uscore3830.png
:eek: That sure is a nice spare Deneb. My 940 can't even open Notepad at 4.1GHz.
sweet cpu.......but your benches clocks went lower as you continued. Is it capable of benching at 4ghz at all? did you try?? Im thinking of one of these for a second system. or just use this one and get myself the newer 965 c3.
It's particularly stable at 3.83 GHz, but @3.7 GHz it is LinX stable.
That sample can run few singlethraded benchmarks @4 GHz. Overclock stability is slightly lower than good Phenom II X4 sample, but
unlocked L3 cache is absolutely stable. With, or without L3 cache, that Phenom II err. Athlon II overclocks equally.
http://img338.imageshack.us/img338/4...unlock3830.png
http://img688.imageshack.us/img688/6962/euler3d.png
http://img42.imageshack.us/img42/3387/fritzunlocked.png
http://img442.imageshack.us/img442/3...2munlocked.png
I like it, $99 bucks at newegg. Are you sure you need that much voltage for 3.8ghz? Usually 1.47-1.5v is good for that speed.
Yeaah, I know that, but that baby is pretty power hungry..... With lower voltage it's unstable.... :yepp:Quote:
Originally Posted by Titan7171
Im curious? Did you try 3.8 ghz at 1.5v with NB and HT at stock? (around 2.2-2.4ghz)Quote:
Originally Posted by drfedja
Wow very nice!!!
I will try tomorrow. You will see the difference between L3 on and L3 off, and also power dissipation and stability.Quote:
Originally Posted by Titan7171
cool, try it out, see what happens? Its just bothering me you need to use so much voltage:p: Id like to see you hitting 4ghz-4.1ghz at those voltages.Quote:
Originally Posted by drfedja
Unless this is just the way it works with these cpu's they are just not as efficient as they could have been as Phenoms so they just used for lower speeds?
Can you give a guy a little advice as to make the 6mb usable. I turned on ACC and set HT to 1.6. The system will boot and show the 6mb L3 in the bios, but when it goes to the screen where it should load windows I get nothing. Raising CPU voltage does nothing. Any advice would be great.
Try for example Hiren's boot CD and use some staility check tools, but I think the L3 is bad and for that reason it was disabled. Bad luck...
You may have luck to successifully unlock L3. But there is some tricks to make it usable. Raise voltage @ NB/L3, and lower the speed of NB/L3. Also try to manually set up ACC. :up:Quote:
Originally Posted by Firewalker81
It is a low leakage CPU.... TDP @2.6 GHz with cool'n'quiet enabled - idle:
http://img527.imageshack.us/img527/9...letdpcnqon.png
cool'n'quiet disabled:
http://img11.imageshack.us/img11/249/idletdpcnqoff.png
max load is lower than claimed 95W:
http://img402.imageshack.us/img402/6...tdpdefault.png
with unlocked L3 it has slightly higher TDP
idle with cool'n'quiet disabled, and L3 unlocked:
http://img340.imageshack.us/img340/1...00unlocked.png
load with L3 unlocked:
http://img402.imageshack.us/img402/9...00unlocked.png
@3.6 GHz CPU power is little bit higher than 140W:
http://img691.imageshack.us/img691/4...600maxload.png
if only one thread is loaded CPU power isn't higher than 70W:
http://img88.imageshack.us/img88/239...nglethread.png
Great thread drfedja ...can u please give us ur system spec, cooler and such...thx :D
From the CPU-Z Validation I see you're doing this with a Gigabyte GA-MA770T-UD3P and in a previous post you said it's on air.
What I'd like you to explain is how this is done or is there a howto somewhere. This is my first foray back into the AMD world. I've got an AMD Athlon II X4 630 Processor but not my motherboard. My current plan is to get a Gigabyte GA-MA790XT-UD4P. I didn't get my 630 in the hope of unlocking it so this would be an extra bonus if it happens.
What is the batch of this cpu?
I just came across this article...
Some Athlon II X4 are ''Deneb'' based, unlockable
and it refers to this article on how to unlock ...
AMD Phenom II X2 550 Black Edition unlocking & overclocking
I still need to put my system together so I haven't tried it yet.
And I'll second felix and ask can we tell if the cpu we have can be unlocked before trying to unlock it?
PSU: OCZ 500WQuote:
Originally Posted by Corsa
Cooler Master Hyper 212 - push pull 12cm dual fan
RAM: GEiL Ultra DDR3 1600 2x1GB CL7
Nice 620 chip you got there drfedja :up:, what is the batch if it's not a secret? It really outperforms Propus core without L3 cache, in overclocking and in clock per clock comparison
msgclb, unfortunately Deneb based Athlon X4 cpu's are very rare :( , better chance in finding 550 X2@X4 for the same money and they are BE with unlocked multiplier, but since you already bought 630, good luck with L3 unlocking :up:
I can't tell you now about the batch, but this is the AACYC mask and it is 23 week 2009.Quote:
Originally Posted by Cele303
That sample is slightly better overclocker than standard cacheless Propus core.
It is LinX stable with VCORE @1.488V and NB Voltage @1.34V
http://img442.imageshack.us/img442/8...xstability.png
Validation
I would think that these would overclock to higher clocks if you got the cacheless core: The deneb ones are out of a really low bin and the propus-cored examples are the highest bin for their die. The only way I can think that that wouldn't be true is if the propus dies are tuned slightly different than the denebs, which may or may not be true. The propus chips also generally tend to be later production batches and would benefit from 10 or so additional weeks of process tuning at AMD.
A deneb running at 3.6 would definately be faster than a propus at 3.7-3.8 though, so I doubt the propus chips could compete with the deneb ones, higher clocks and all.
Most of Propus cores clocks lower than Deneb based. I did find no one Propus X4 whose can be LinX stable @3.7 or even at 3.8 GHz. Most of them clocks stable @3.6 GHz just like this sample.Quote:
Originally Posted by daellum67
Cacheless core has lower performance transistors, slightly different tuned process than core with L3 cache.
I bet those propus are manufactured in a similar fashion to the older deneb cores then. I have a 940 (2008 week 50) that behaves exactly like the deneb shown in this thread regarding voltage requirements and power draw, and a 920 (2008 week 49) that requires even more voltage for those same clocks. Power draw is suprisingly low though (1.5vcore for 3.5 on the 920 results in 135W draw, the 940 needs 1.46V for 3.6 and draws 141W)
I have a new 965 (2009 week 35) that will prime away at 3.8 on stock volts (1.41V), yet it sucks down 201W doing that. Kind of scary on the GD70's 4 phase PWM. I guess the new "high performance" transistors really wouldn't work well on those athlons, which are aimed more at running cool and sipping power than overclocking.
I am no longer concerned with the MSI gd 70's PWM after running prime on TWKR ( AKA LEKR ) at 4.2, I think they might have just had a bad batch of fets. You really don't want to know what the killawatt was saying I was pulling ;)Quote:
Originally Posted by daellum67
That's good to hear, I don't want to wake up to a roasted chip and board tomorrow morning. ;)
Finally I was reached the limit of unlocked L3 with aircooling:
http://img249.imageshack.us/img249/12/l3airoc.png
Look at that WinRAR score:
http://img407.imageshack.us/img407/1979/winrarl3oc.png
What's the batch code on your 620?
AACYC AC 0923EPMW :cool:Quote:
Originally Posted by KamuiRSX
lucky guy
my Phenom II x3 720BE can't even stable at 3.5GHz
vcore 1.536 for 24/7 ... is it safe?
@haylui : My X3 720 is stable @3500 with vcore @ 1.49 but it is a little scary voltage so i prefer @3200 with 1.36 , i think it is safer that way ( i am willing to keep the cpu for at least 5 year )
Yes it is safe, relatively. ;) Default vcore for 45nm SOI DSL is 1.25-1.4V. If you overvolt that by 10% it is safe. +10% of 1.4 V is 1.54V. If you can handle heat of that overclocked and overvolted CPU, that isn't problem.Quote:
Originally Posted by El Greco
AMD SOI DSL has better resistance of electromigration than Intel's 45nm HKMG. If you overvolt Intel Yorkfield to 1.5V and hold that vcore for months, your CPU will be degraded.
You can go with 1.49V easilly with good aircooling. I think that your CPU can go over 3.6 GHz stable with good air cooling and 1.49V, if your mobo is good enough.Quote:
@haylui : My X3 720 is stable @3500 with vcore @ 1.49 but it is a little scary voltage so i prefer @3200 with 1.36 , i think it is safer that way ( i am willing to keep the cpu for at least 5 year )
Ok, so when I set up the ACC, i have it set to auto and get no L3. from what i'm hearing on overclock.net, if your stepping is xxCxx, then you have a Deneb core, and if it's xxDxx it's a propus. mine is CACYC, so according to that i'm good.
do i need to manually set up L3? or even maybe turn EC on?
ooh, found it, i have to set my ACC to Hybrid (Gigabyte GA-MA790FXT-UD5P) [source]. Doing that tonight.