OC potential of Phenom II on SB600

We all see what is the overclock potential of the new 45nm shrink of the Phenom core, but the first thing that came to my mind when all those articles and validations started to show up in the IT community was: "Is the bug with the old SB fixed and could the users, who haven't yet bought a board with SB750(to define them SB600 owners/in particular me) , reach the same clocks like the guys with the new boards?". I haven't seen this theme discussed, so I have very simple question - Does anyone have any information about tests made on SB600 boards and what is the difference, if there exists some kind of difference, between the results.
Thanks in advance!

i can tell you nothing about 45nm on sb600, but about 65nm on sb600. there is no bug. the first chips simply didnt clock well.

good chips dont reach higher clocks on the sb750. but voltage sometimes can be set lower with ACC.

medium to low end clocking chips though reach higher clocks on sb750, so sb750 is the safer deal for phenom oc. but the sb750-boards available, excluded the expensive as hell foxconn, all have inferior power regulator systems compared to high end sb600 boards. well, due to acc on those sb750 boards high voltage is not needed so often and with 45nm the power consumption will come down a lot, but i would suppose keep your dq6 anyway until am3 boards come out finally...

I was thinking of exactly the same thing - keeping DQ6 till AM3, but if there is no backwards compatibility between AM2+ processors(Phenom II 940 for example) and the AM3 mobos, I should have to wait till February to buy a new processor. Yes, it's not so much, but if I could run a 940 on AM3 mobo it will be perfect and everybody will be happy. This so called "bug" is not in the processor, it is in the SB. My question was, could it be prevented with changes in the CPU architecture or something like that or it will stay and the OC will suffer from that.
P.S. M3A79-T Deluxe has 10 phases and the same PCB like M3A32-MVP Deluxe, so there are existing 790FX/SB750 mobos ;).

the asus m3a79-t has 10 phases? well ok i didnt know ;) but it has a more or less bad bios i think..

no, to my knowledge there are bugs in the sb600, but they do not hold oc back. that has to do with the pll circuits on the boards, which can be properly tuned with sb750, and the complex design of the k10 i addition. ACC is a "trick" or more like a feature to reach higher clocks due to better timed clock skew, but it does not work in all cases. if you own a good clocker, the difference will be nothing to 100mhz between sb600 and sb750. whatever, overall oc is slightly increased but not much.

i will buy an am2+ phenom II and clock it on my m2r and i think i'll reach good clocks. i get 3,56ghz out of my 9750 with htt overclocking with only water, and i think phenom II will push that to 4ghz easily if everything is real what we hear these days..

am3 i will wait for a decent dfi UT board and good am3 ram at a decent price.. no need to change whole system right now only because of DDR3...

Quote:

---

Originally Posted by Oese

the asus m3a79-t has 10 phases? well ok i didnt know ;) but it has a more or less bad bios i think..

---

8+2 to be correct. 8 for the cpu and 2 for the HT (I'm sure you know that, stop talking ironically :)).

I'm not very well informed how to go round this "trick" and I'm definitely not concerned with my results with this MB and CPU(maybe the CPU is a very bad piece) - something like 3090MHz for screen, 3050 for tests and 2810 for 24/7. My next mobo will also be DFI, but don't you think that it will be better if you pay for the exact same product only once. There is no point to buy a 940 firstly and then buy 945 when you want to change the platform. Yes, there is another option, to buy FX processor for AM3, but the price is different there.

Quote:

---

Originally Posted by Oliverda

2 for the NB ;)

---

It's almost the same ;). Whether it refers to the north bridge or to the HT which connects the NB the CPU and the DIMM slots I can hardly find any difference ;).

Quote:

---

Originally Posted by Stuen4y

8+2 to be correct. 8 for the cpu and 2 for the HT (I'm sure you know that :)).

---

2 for the NB ;)

the Asus boards are the exception not the rule it seems. :) love my MVP-Deluxe w0ot LOL

The difference with the SB600 and the SB750 is the ACC. I think if the SB750 had no ACC it would clock just as the SB600 would.

Another thing that improved at least in the ASUS boards was the PWM. The M3A79-T (SB750), has a much better PWM and was a great improvement over my M3A32 (SB600). So I think the Phenom II will get away with better clocks on the SB750 board, however, it should still perform very well on a SB600 board. Lets just wait and see, only time will tell :)

Stuen4y: FWIW, I get the feeling that the PII 940 will clock pretty well using a board with the SB600.. Ofcourse at this point it's all specualtion, but here is the reason why.

My original and favorite board (before the Asus 79-T) was an MSI K9A2 with a SB600 southbridge. Here are my results with different X4's (all these were stable clocks and not pushed to the edge, I'm a wimp that way :cool:)...

9600 - Max OC 2.5Ghz (MSI)
9600BE - Max OC 2.65 (MSI)
9850BE - Max OC 2.82 (MSI) / 3.0 Max (Asus)
9950BE - Max OC 3.0Ghz (MSI) / 3.2 Max (Asus)

From my experience it looks like each revision of the core gets better performance (even on SB600), so if the numbers we're seeing turn out to be legit, I would expect the PII to hit 3.5+Ghz on an SB600 board.

I'm sure an SB750 would give you better results, but I'd be surprised if a PII wouldn't give at least decent clocks on the DQ6 (or K9A2 :p:).

BTW: I'm not really an Asus fan, but the 79-T is the best AM2+ board I've had so far! I had a 78-T as well and it was solid, but a terrible overclocker.
The MSI DKA790GX was a great OC'r, but the PWM section was a little weak. Mine died at 1.55 Vcore, and it was a little pricey.
Very nice board though and would probably be fine with a PII...

Quote:

---

Originally Posted by Chicken Patty

The difference with the SB600 and the SB750 is the ACC. I think if the SB750 had no ACC it would clock just as the SB600 would.

Another thing that improved at least in the ASUS boards was the PWM. The M3A79-T (SB750), has a much better PWM and was a great improvement over my M3A32 (SB600). So I think the Phenom II will get away with better clocks on the SB750 board, however, it should still perform very well on a SB600 board. Lets just wait and see, only time will tell :)

---

Can you explain what exactly is this ACC and how it affects on the clock potential. We know that Phenoms can hardly overclock by HT link and with SB750 this still remains the same like the SB600.

Quote:

---

Originally Posted by Daveburt714

From my experience it looks like each revision of the core gets better performance (even on SB600), so if the numbers we're seeing turn out to be legit, I would expect the PII to hit 3.5+Ghz on an SB600 board.

I'm sure an SB750 would give you better results, but I'd be surprised if a PII wouldn't give at least decent clocks on the DQ6 (or K9A2 :p:).

---

If the processor does 4+GHz with SB750, how would I feel? Screwed? Yes I would :).

Thanks for the posts. I'll keep the thread open, so if some kind of info appears, please write here.

Quote:

---

Originally Posted by Stuen4y

If the processor does 4+GHz with SB750, how would I feel? Screwed? Yes I would :).

Thanks for the posts. I'll keep the thread open, so if some kind of info appears, please write here.

---

Well, your original question seemed to be "How well will my DQ6 (SB600) do with a PII"... I tried to help answer that question for you...

If you've paid any attention at all, you should know that an SB750 board (W/ACC) will help your overclock... How does ACC work? Umm, not sure anyone can answer that question, but it does...

If you plan on buying an SB750 board (so you don't feel screwed)....
I'm not sure what the whole point of this thread was... :shakes:

I really don't want to buy an SB750 board and want to move to AM3 platform when it appears. A lot of people in the HW forum in my country are asking themselves the same question like me - "Should I buy an SB750 board or I can put my new upcoming processor in my old board, for which I have paid several hundred dollars and receive the bandwidth I'll receive without making more investments?", cause it's a problem here to sell all those high end parts all the more that AMD is with not so good reputation right now. I appreciate your wiling to help, but the argumentation is the weak point of your statement. Doing some contentions couldn't definitely assure the theory that the new processors will affect the same way as the old ones from this ACC. Do you understand my point now? I asked if there is some info, because there are a lot of men here, who have access to more spicy information than the others. They could not want to tell me their info but what costs me try asking politely and descriptive. And yes, it's all about money and budget, cause if the "news" are good I can save some money to buy better memory modules or processor with higher frequency instead of giving it for mobo. If I should, I'll do it but if I could save this spending? I meant I'll feel screwed if I have to buy new mobo.

Quote:

---

Originally Posted by Miss Banana

You won't have to buy a new MB.
http://www.gigabyte.com.tw/News/Moth...px?NewsID=1423

It will work, but how well it will work noone knows at this point.
I also hope ACC solved some problem with the 65nm parts that isn't a problem anymore with their 45nm parts, but I think a 10% difference between highest overclock on SB600 and SB750 is a more realistic expectation at this point.

---

And this prediction was made inspired by what? I know my mobo can run a Deneb CPU without problem, the problem is OC and I think that per cent you've given is far-fetched and I can hardly believe it. We can spin yarns all day long.

You won't have to buy a new MB.
http://www.gigabyte.com.tw/News/Moth...px?NewsID=1423

It will work, but how well it will work noone knows at this point.
I also hope ACC solved some problem with the 65nm parts that isn't a problem anymore with their 45nm parts, but I think a 10% difference between highest overclock on SB600 and SB750 is a more realistic expectation at this point.

Quote:

---

Originally Posted by Daveburt714

Stuen4y: FWIW, I get the feeling that the PII 940 will clock pretty well using a board with the SB600.. Ofcourse at this point it's all specualtion, but here is the reason why.

My original and favorite board (before the Asus 79-T) was an MSI K9A2 with a SB600 southbridge. Here are my results with different X4's (all these were stable clocks and not pushed to the edge, I'm a wimp that way :cool:)...

9600 - Max OC 2.5Ghz (MSI)
9600BE - Max OC 2.65 (MSI)
9850BE - Max OC 2.82 (MSI) / 3.0 Max (Asus)
9950BE - Max OC 3.0Ghz (MSI) / 3.2 Max (Asus)

From my experience it looks like each revision of the core gets better performance (even on SB600), so if the numbers we're seeing turn out to be legit, I would expect the PII to hit 3.5+Ghz on an SB600 board.

I'm sure an SB750 would give you better results, but I'd be surprised if a PII wouldn't give at least decent clocks on the DQ6 (or K9A2 :p:).

BTW: I'm not really an Asus fan, but the 79-T is the best AM2+ board I've had so far! I had a 78-T as well and it was solid, but a terrible overclocker.
The MSI DKA790GX was a great OC'r, but the PWM section was a little weak. Mine died at 1.55 Vcore, and it was a little pricey.
Very nice board though and would probably be fine with a PII...

---

have the same boards msi k9a plat and the new asus 79-T

my 9850 does not oc better on the sb750 board then the sb600, but it gives me a bit lower vcore to do the same oc.

so in the end you might have a slight different oc then but if i would have known i would have never bought the 750. maybe phenom2 oc is better on 750 boards, but did gigabyte already released the sb750 on dq5-dq6? if not they were using sb600 in the amd labs :)

i have my board now and i'll wait a long time before to go to ddr3, there is no rush at all since we can just put any phenom2 in these boards.

Quote:

---

Originally Posted by duploxxx

have the same boards msi k9a plat and the new asus 79-T

my 9850 does not oc better on the sb750 board then the sb600, but it gives me a bit lower vcore to do the same oc.

so in the end you might have a slight different oc then but if i would have known i would have never bought the 750. maybe phenom2 oc is better on 750 boards, but did gigabyte already released the sb750 on dq5-dq6? if not they were using sb600 in the amd labs :)

i have my board now and i'll wait a long time before to go to ddr3, there is no rush at all since we can just put any phenom2 in these boards.

---

They do their tests on 790GP-DS4H, which is a SB750 mobo ;). All these arguments are pointless if everybody are sharing only their experience with the old CPUs and made general conclusions on the basis of it.

Quote:

---

Originally Posted by Stuen4y

And this prediction was made inspired by what? I know my mobo can run a Deneb CPU without problem, the problem is OC and I think that per cent you've given is far-fetched and I can hardly believe it. We can spin yarns all day long.

---

What do you propose we do then? Noone has an answer for you at this point, so besides speculation there really is nothing anyone can say.
I think there will be a max OC difference, but I also think this difference will not be substantial enough for most to justify an upgrade.

Unless you want to achieve a world record overclock of course, but in this case you shouldn't have bought that MB in the first place.

Well I have GA 790FX-DQ6 and all my previous Phenoms were clocking very badly, but 9850BE was doing 2.7GHz stable in 64bit mode and my new 9950BE is doing 3.2GHz stable in 64bit mode (1.4V).
32 bit mode gives me 3.33GHz stable using same voltage and all that on SB600... (3.4GHz bench stable at 1.44V)

As many before me said, SB600 boards will clock P II well if you're lucky to get very good chip. SB750 boards will clock well most of the chips. That's the difference.

If you're guys willing to wait, I'm getting P II ASAP and will test it for you. (I doubt you will wait TBH :p:)

Quote:

---

Originally Posted by Daveburt714

9600 - Max OC 2.5Ghz (MSI)
9600BE - Max OC 2.65 (MSI)
9850BE - Max OC 2.82 (MSI) / 3.0 Max (Asus)
9950BE - Max OC 3.0Ghz (MSI) / 3.2 Max (Asus)

---

Here
9600BE - Max OC 2.65 (DFI/Air) / 2.9 Max stable (AsRock/Air) / ~3.4GHz benchable
9850BE - Max OC 2.85 (DFI) / 2.82 Max (AsRock)
9950BE - Max OC 3.05Ghz (DFI) / 3.2 Max (AsRock/Air)

Only this early 9850BE does not benefit from ACC.

Quote:

---

Originally Posted by Stuen4y

Can you explain what exactly is this ACC and how it affects on the clock potential. We know that Phenoms can hardly overclock by HT link and with SB750 this still remains the same like the SB600.

If the processor does 4+GHz with SB750, how would I feel? Screwed? Yes I would :).

Thanks for the posts. I'll keep the thread open, so if some kind of info appears, please write here.

---

I dont think anybody knows exactly what ACC is. It was never made clear what it was, all I know is that with my Current Phenom, I cannot be stable over 3.1 Ghz with it on, when I enable ACC, I can go up to 3.3 GHz. On my 9850 which was a better chip, I went up to 3.55 @ only 1.456v. Got to validate at 3.6 Ghz also.

So its a heck of difference, but i'll let somebody else explain what it is if they have a better idea, but last time I checked, there was no real explanation to what it actually did.

htt oc IS working well on the phenoms. or my chip is the big exclusion from the rule.. i had it as high as 300mhz htt prime stable and fully useable.

ok, whatever. i will test the pII (;)) on my board and think it will work well. if it does not, well i'll wait either for am3 or buy an sb750mobo.

what i surely wont do is buy an sb750 without checking whether the sb600 isnt enough to come around till am3 is available or even beyond.. well i think the new asus is a good board but i wont buy it because 3,2ghz compared to 3ghz of maximum oc isnt worth it. if acc would bring a 3,4ghz chip to 3,6ghz stable, that would be something else then 3ghz to 3,2ghz. but it does not from what i know from my readings.. but pII will reache these points easily, and i think the acc impact will be equal or even less. of course i dont know really ;)

Quote:

---

Originally Posted by Oese

htt oc IS working well on the phenoms. or my chip is the big exclusion from the rule.. i had it as high as 300mhz htt prime stable and fully useable.

ok, whatever. i will test the pII (;)) on my board and think it will work well. if it does not, well i'll wait either for am3 or buy an sb750mobo.

---

I'll test it on SB600 too without doubt :). Really your system is a kind of exception with this high HTT. Mine board does something like 230 HTT for stable :).

Quote:

---

Originally Posted by Oese

ok of course you have to lower nb multiplier, raise nb voltage and such things.. and what is special with the m2r is you can adjust htt boot up clock and cpu htt clock sperately. dunno what is what exactly (ok sort of assumptions but never seen any real effect that points into that direction) but one has to set both the same for htt oc on phenom on the m2r. Kinda really funny thing...

---

I've done some tests when I changed the CPU but from then I don't have enough time for one serious bench session(I'm having sleep lack). I'm sure I could get 100MHz more for example, but don't have the passion when I know my CPU is a bad piece for overclocking.

ok of course you have to lower nb multiplier, raise nb voltage and such things.. and what is special with the m2r is you can adjust htt boot up clock and cpu htt clock sperately. dunno what is what exactly (ok sort of assumptions but never seen any real effect that points into that direction) but one has to set both the same for htt oc on phenom on the m2r. Kinda really funny thing...

Quote:

---

Originally Posted by Daveburt714

The MSI DKA790GX was a great OC'r, but the PWM section was a little weak. Mine died at 1.55 Vcore, and it was a little pricey.

---

Hi, I'm off topic here :D, sorry for that, but I can't get more than 1.45 Vcore from my DKA790GX with bios 1.2 and 1.3. Is there a special "trick" to go beyond 1.45 ?

Help would be greatly appreciate :up:

iDCT: You have PM

Quote:

---

Originally Posted by Oese

ok of course you have to lower nb multiplier, raise nb voltage and such things.. and what is special with the m2r is you can adjust htt boot up clock and cpu htt clock sperately. dunno what is what exactly (ok sort of assumptions but never seen any real effect that points into that direction) but one has to set both the same for htt oc on phenom on the m2r. Kinda really funny thing...

---

The last few days with your posts have been tempting me to get M2R again.

:D but no guarantee from my side xD

but really, i'm still really pleased with this board, even more since i set up raid0 at the sb600 what i believed is a problem but it isnt. you only have to install ati sb drivers..

wrong thread xD

Quote:

---

Originally Posted by Stuen4y

I've done some tests when I changed the CPU but from then I don't have enough time for one serious bench session(I'm having sleep lack). I'm sure I could get 100MHz more for example, but don't have the passion when I know my CPU is a bad piece for overclocking.

---

can understand that... ^^

Quote:

---

Originally Posted by Oese

:D but no guarantee from my side xD

but really, i'm still really pleased with this board, even more since i set up raid0 at the sb600 what i believed is a problem but it isnt. you only have to install ati sb drivers..

wrong thread xD

---

Of course when i had it, i had 4Way RAID on the sb600 :p:

:D :up:

A little update of the theme. It seems that Phenom II won't suffer from the ACC bug and will be fully competitive on SB600 boards. Arguement. I don't care about the conditions, the results are significant :).
P.S. That is confirmed only for the BE processors. I have no information about the FSB clock and how will the SB600 clock PII 920.

Quote:

---

Originally Posted by Stuen4y

A little update of the theme. It seems that Phenom II won't suffer from the ACC bug and will be fully competitive on SB600 boards. Arguement. I don't care about the conditions, the results are significant :).
P.S. That is confirmed only for the BE processors. I have no information about the FSB clock and how will the SB600 clock PII 920.

---

Is it your CPU? :eek:

Quote:

---

Originally Posted by Stuen4y

A little update of the theme. It seems that Phenom II won't suffer from the ACC bug and will be fully competitive on SB600 boards. Arguement. I don't care about the conditions, the results are significant :).
P.S. That is confirmed only for the BE processors. I have no information about the FSB clock and how will the SB600 clock PII 920.

---

That is great to hear, I hope your right. I would love to re-use my DQ6 and DS5 boards :up:

Is that on air/water?

Nope, this is not my cpu(I wish it was :D), this is a validation, which I found quoted in a forum. :)

Quote:

---

Originally Posted by G0ldBr1ck

Is that on air/water?

---

I've written, I don't know and don't care about the conditions :).
P.S. Maybe I should have written "confirmed" instead of confirmed :D

great, if this confirms my dfi will kick ass (also I still have a m3a32-mvp deluxe wifi boxed to sell, it's been quite hard to sell it, but I think that when deneb comes out people will be fighting to get it, I think it's the 2nd best am2+ mobo around and it's getting harder to get one of those this days)

Would be cool to use SB600's again however I doubt it.

Dragon is actually 790xX/SB750, Phenom II and HD4xxx series:rolleyes: On the otherhand it makes a bit of sense as well since SB750 simply replaces SB600, would be stupid to start producing them en masse again. I think I'd stick to SB750, now I only got to find a board which does not feature a crap lay-out stopping me from installing TR HR05's and HR09's on every chip I can find:(

they are already working on the SB800/850 chipset, I don't think they are going back to the SB600.....however, for those that currently have only a SB600, it would seem prudent to wait and get a Phenom II, try it FIRST, and save some hard earned until the dust settles....

at least that is what I am doing at first......

laterzzzz...............

I haven't said that the new amd users should buy an SB600 board, but if you already have one you'll be happy to use it with the new CPUs. BTW the new chipsets will be ready H2 09 or June, so there is a lot of time.

Quote:

---

Originally Posted by Chicken Patty

I still have my M3A32 in mint conditions with my water blocks on it. Once I get my new gear I'll be putting back the factory copper pipes, then i'll be fighting to sell it too!

---

Why are you always flooding so much... I can't understand you. If you have something to say in common with the thread's topic, ok do it, but to post what you would probably do if something happens is totally stupid.

Quote:

---

Originally Posted by possessed

great, if this confirms my dfi will kick ass (also I still have a m3a32-mvp deluxe wifi boxed to sell, it's been quite hard to sell it, but I think that when deneb comes out people will be fighting to get it, I think it's the 2nd best am2+ mobo around and it's getting harder to get one of those this days)

---

I still have my M3A32 in mint conditions with my water blocks on it. Once I get my new gear I'll be putting back the factory copper pipes, then i'll be fighting to sell it too!

Now it's almost 100% confirmed that PII won't suffer from the ACC and there will be only slight difference in the OC potential between SB600 and SB750.

did you find out any new info to support that?

i have a k9a2 plat and water cooling, im hoping for 3.6-4.0ghz with a moderate voltage increase.

You can look in the thread of Team Finland and their L2N tests with 940BE and especially this post in addition to the screen several posts above.
P.S. I think on water 4.5GHz are not only a dream for 24/7 ;). I really hope that the new PII will be so great for OC like the ES that were given up to this date to the press and was shown on presentations.

Well I sure as hell didnt get my money's worth out of my Gigabyte DQ6/DS5 boards with Phenom 1 so I would feel alot better if I could get a few good months use with phenom II in them.

Quote:

---

Originally Posted by G0ldBr1ck

Well I sure as hell didnt get my money's worth out of my Gigabyte DQ6/DS5 boards with Phenom 1 so I would feel alot better if I could get a few good months use with phenom II in them.

---

I can only agree!

VRMs on DQ-6 are simply amazing, so power wall shouldn't be a problem for us :)

Quote:

---

Originally Posted by Stuen4y

You can look in the thread of Team Finland and their L2N tests with 940BE and especially this post in addition to the screen several posts above.
P.S. I think on water 4.5GHz are not only a dream for 24/7 ;). I really hope that the new PII will be so great for OC like the ES that were given up to this date to the press and was shown on presentations.

---

sweat thread, i cant keep up with everything on here, so i never saw it.

basically AMD is back on track, i need to buy more stock at 2$ a share while i still can.

Any word on the SB700? I have the Biostar T780G M2+ board with the SB700. Just wondering if I'll have any issues with the PII....

Quote:

---

Originally Posted by NidStyles

Any word on the SB700? I have the Biostar T780G M2+ board with the SB700. Just wondering if I'll have any issues with the PII....

---

it works just fine ;)

I knew it :P good i stuck to the m2r, wont see any power wall on that kickass PWM section board as well i think ;)

hoping to get around 4ghz too under water... with the dream of 4,4ghz for benching in mind ;)

Something came on my mind when I was reading the last post. There is a possibility that the "old" 790FX boards clock PII better than the 790GX boards because of the better PCB and power design.

Im surprised you guys didn't see this post on the ASUS M3A32-MVP
http://www.xtremesystems.org/forums/...167502&page=18
seems like sxs112 got a phenom II 940 4G@1.575v on air

ya, I missed that thanks

Quote:

---

Originally Posted by evilSuRGe

Im surprised you guys didn't see this post on the ASUS M3A32-MVP
http://www.xtremesystems.org/forums/...167502&page=18
seems like sxs112 got a phenom II 940 4G@1.575v on air

---

Can you quote the exact post you want to show us, cause I personally can't find it. One more argument that 4GHz on air will be something normal with 940BE...

Quote:

---

Originally Posted by Stuen4y

Something came on my mind when I was reading the last post. There is a possibility that the "old" 790FX boards clock PII better than the 790GX boards because of the better PCB and power design.

---

yeh but as phenom II do not use that much power as phenom I i dont know... perhaps at 4+Ghz its a different story xD

It's not using so much power? 940BE is with TDP 125W, and on 4GHz will consume above 160-70W(I don't remember the formula with which these values are calculated) :). All quadcore processors are very hot and consume a lot of energy.

...

Quote:

---

Originally Posted by sxs112

M3A32 Series Start Support Phenom II
http://farm4.static.flickr.com/3199/...7b4c3549_o.jpg

---

Quote:

---

Originally Posted by sxs112

All Air 1.575V@4G:D

---

Quote:

---

Originally Posted by Stuen4y

It's not using so much power? 940BE is with TDP 125W, and on 4GHz will consume above 160-70W(I don't remember the formula with which these values are calculated) :). All quadcore processors are very hot and consume a lot of energy.

---

maybe but at same speeds it consumes about 50% less compared to phenom I... but you will be right most obviously. power draw rises immensely with higher clocks and voltage. my agena throws 425w at me using my power meter with quadprime running at 3,4ghz. thats 250w more then idle , minus 20% equals 200w more then idle so roundabout 200w power draw from the cpu alone if you allow the overall system a 40w more power when full load without graphics. i hope i wont see these numbers with deneb again :rolleyes:

Quote:

---

Originally Posted by evilSuRGe

...

---

And this results are with which air cooler, cause if it's something different from IFX, TRUE and S1283/4/Vendetta 2 higher clocks could be expected even on air.

Quote:

---

Originally Posted by Oese

maybe but at same speeds it consumes about 50% less compared to phenom I... but you will be right most obviously. power draw rises immensely with higher clocks and voltage. my agena throws 425w at me using my power meter with quadprime running at 3,4ghz. thats 250w more then idle , minus 20% equals 200w more then idle so roundabout 200w power draw from the cpu alone if you allow the overall system a 40w more power when full load without graphics. i hope i wont see these numbers with deneb again :rolleyes:

---

I completely agree and think that on ~4G and 1.5V+ the situation will be close to this :D.

http://www.fudzilla.com/index.php?op...10962&Itemid=1

P2 940 tested on Asus M3A32-MVP Deluxe board! Seems to clock well on SB600 :)

I planned on keeping my board anyways(my M3A32-MVP Deluxe Wifi)... Cant wait...

Quote:

---

Originally Posted by DYM

http://www.fudzilla.com/index.php?op...10962&Itemid=1

P2 940 tested on Asus M3A32-MVP Deluxe board! Seems to clock well on SB600 :)

---

M3A32-MVP's bios support for PII is still on beta stage, so the other SB600 boards should perform better, but this results - 50% faster than 9950 only on 3.8GHz make me very optimistic :). The launch date is close, I only hope the cpus will be available at the release date.

Quote:

---

Originally Posted by Stuen4y

I only hope the cpus will be available at the release date.

---

oh yeah! unlike Intel's 45nm paper launch last January this will be one hard launch ;)

It's 101% confirmed(by mine sources) that there will be no difference in the clock with SB600 and SB750/700, all the possessors of SB600 boards should be very very pleased from that info :). The thread could be closed now or left open if someone want to post his results when the cpu-s come out on the market.

Quote:

---

Originally Posted by Stuen4y

It's 101% confirmed(by mine sources) that there will be no difference in the clock with SB600 and SB750/700, all the possessors of SB600 boards should be very very pleased from that info :). The thread could be closed now or left open if someone want to post his results when the cpu-s come out on the market.

---

Can I say:

:party::party3::party::party2::guitar::bounces: :bounce: :YIPPIE:

This guy has posted 4180Mhz with SB600 MB and is now in 4th place on CPUz - http://valid.canardpc.com/show_oc.php?id=456005

lets leave the thread open and decide where we wanna have our pizza party in celebration of AMD.

Any new news on this subject?

I have the Phenom II 940 on this board, hitting 3.9 so far stable, but the BIOS is still in the Beta stages, cant wait untill ASUS comes out with another update

http://img301.imageshack.us/img301/3...henomiihd6.png

does it look to you that there is no difference at all in sb600 and sb750 OC's? or have you noticed a difference?

Quote:

---

Originally Posted by G0ldBr1ck

does it look to you that there is no difference at all in sb600 and sb750 OC's? or have you noticed a difference?

---

I did hear back then that there was going to be NO difference, but probably was just a rumor, just waiting for others to get the chip and start OC on the SB750's... its a waiting game

FROM Stuen4y post#61:
It's 101% confirmed(by mine sources) that there will be no difference in the clock with SB600 and SB750/700, all the possessors of SB600 boards should be very very pleased from that info . The thread could be closed now or left open if someone want to post his results when the cpu-s come out on the market.

HondaGuy are you able to use that high of a hypertransport/northbridge clock with 3.9ghz core clock?

Quote:

---

Originally Posted by Caveman787

HondaGuy are you able to use that high of a hypertransport/northbridge clock with 3.9ghz core clock?

---

I have got it up to 3.7 so far with the NB/HT @ 2600... still tweaking

http://img145.imageshack.us/img145/2...7nb2600tf7.png

Can someone please confirm that the SB600 can Overclock well using only FSB.

I am considering buying the 920...

Thanks

sorry i cant help you in regards to sb600 butttt newegg does have a $10 promo code on 940be right now, EMCLNML22

Thanks, but Newegg is no good from the place I come from
:)

I have clocked a 920 with 284x12.5 on Gigabyte 790fx/SB600 board. It works just fine.

Quote:

---

Originally Posted by MadUser

Can someone please confirm that the SB600 can Overclock well using only FSB.

I am considering buying the 920...

Thanks

---

I own the 920 because I knew it would clock well before they were released so I didn't buy the black edition this time. I gave up going upwards on the HT Link because I was getting near the limits of running out of multipliers low enough on the HT Link, Northbridge, and Ram since the board showed absolutely no sign of letting up.

I'm 100% positive I could have gone significantly further without effort. On a whim my firsts test started out at 10x cpu multiplier and 1.472v...I didn't lower the multiplier until I started to get into the stratospheric region of HT Bus speeds and the cpu clock would be too high for that voltage. I never raised the cpu voltage above the 1.472v that I started with, I also never tried it with lower voltage so who knows how low I could've gone on voltage. :)

I've attatched 3 shots showing the Max HT Bus speed I've tested before getting bored, High HT Bus with high Northbridge, and finally 3.78Ghz clock at the max voltage I'm allowed to use (1.552v). I've gone up to 3.83Ghz but not stable enough with the little testing I did at that speed to matter. With running two cores only I reached 3.93Ghz.

All results shown here are with my ASUS M3A32-MVP Deluxe WiFi with the Phenom II 920 using all 4 cores overclocking from the bios only. Voltages were not fully optimized so they may be higher than they actually need to be especially the HT Bus speed test which for sure has the cpu voltage up too high because I used a random but safe number.

Kei

Quote:

---

Originally Posted by G0ldBr1ck

I have clocked a 920 with 284x12.5 on Gigabyte 790fx/SB600 board. It works just fine.

---

correct me if I'm wrong but your CPUZ validator shows SB750.
:confused:

Edit:

Kei,
you managed almost 3.8GHZ with 790FX/SB600 chipset on FSB tweaking?
this is an amazing score I must say.
if I'll get 3.5GHZ-3.6GHZ I'll be more than happy :)

So I guess this means that I can buy the Gigabyte GA-MA790FX-DS5 with the X4 920
and be very optimistic... :)

Thanks

Quote:

---

Originally Posted by MadUser

correct me if I'm wrong but your CPUZ validator shows SB750.
:confused:

Edit:

Kei,
you managed almost 3.8GHZ with 790FX/SB600 chipset on FSB tweaking?
this is an amazing score I must say.
if I'll get 3.5GHZ-3.6GHZ I'll be more than happy :)

So I guess this means that I can buy the Gigabyte GA-MA790FX-DS5 with the X4 920
and be very optimistic... :)

Thanks

---

I have 5 Different 790fx/GX boards I bench with. My 2 favorite boards are The AsRock in my CPU validator link and the Gigabyte 790fx-DQ6. In the past I have had 2 Giga 790FX-DS5 boards and they suck. I cant recomend you get that board. It has awful power regulation and allot of bios bugs.

haha Kei, I was just about to go look for your posts and link MadUser to it, but here you are buddy :up:

Quote:

---

Originally Posted by MadUser

correct me if I'm wrong but your CPUZ validator shows SB750.
:confused:

Edit:

Kei,
you managed almost 3.8GHZ with 790FX/SB600 chipset on FSB tweaking?
this is an amazing score I must say.
if I'll get 3.5GHZ-3.6GHZ I'll be more than happy :)

So I guess this means that I can buy the Gigabyte GA-MA790FX-DS5 with the X4 920
and be very optimistic... :)

Thanks

---

Not sure how you thought I was on SB750, but look again at the first Everest shot and it shows you ASUS M3A32-MVP :)

I never bought an SB750 board because I was waiting for AM3 to be released before I bought another board.

As for clock speeds, I went all the way up to 3.71Ghz on the stock heatsink/fan combo so these processors have no problems clocking upwards by very far amounts at all even from the bios.

If I had enough voltage available I don't doubt I could've hit 4.0Ghz on this processor but I don't have the voltage available with my current setup. 1.552v is the top setting I can use with this processor and I don't think that's even a truly reliable setting anyway. I settled for 3.5Ghz as my max clock so that I could have everything else nice and even...can't help it I like 'round' numbers even though I could go higher.

I still use 2.8Ghz as my setting everyday since even that is more than enough to do pretty much anything I want. When I'm benching or doing some encoding or photo work I might bump up the speed but even that is rare. I just had to know what it could do if I do end up needing it. :yepp:
Kei

Btw, Chicken :up:

well,
i can post at >300mhz htt on an amd 770/sb600 board with phenomII (this is BETTER than with a X2 6400+) and i have been running the last 2days 9 hrs etc at 275htt without a hitch.
benching at about 285 is possible - im limited, btw, to posting at 275 not by the chipset or cpu, but by the pwm. OCP trips loading windows with much over 2500mhz nb, and i have no control of nb multi so 300 = 2700mhz nb = far to much for the pwm.

i cant comment on maximum clock, but it seems that sb 600 boards have no excuse not to run high speeds with even locked phenoms.

My Ph II 940 can do 3700 with my MSI-K9A2 with pure multi's. That's SB600.

I run 3.8Ghz on a M3A32-MVP fine. Phenom II 940 18 multi X 214

3.9 here on M3A32-MVP Deluxe Wifi Bios 1406......
http://valid.canardpc.com/show_oc.php?id=477693

Honda guy,

been following these threads but sine AMD rig is still down I havent messed around with any AMD lately so i've been quite :D

Anyhow, thats great for a SB600, think you can do better with a SB750???

i have managed 4.4GHz on air, just look at my sigb
4.3GHz was pi1m stable. I have not push for high htt but still benched at 275htt

Quote:

---

Originally Posted by Chicken Patty

Honda guy,

been following these threads but sine AMD rig is still down I havent messed around with any AMD lately so i've been quite :D

Anyhow, thats great for a SB600, think you can do better with a SB750???

---

Been able to hit 4.1 on M3A79-T, so far still testing out this chip

http://valid.canardpc.com/show_oc.php?id=501007

There is no difference in the clock between SB600 and SB750 as said several months ago. Mine chip also does more than 4200MHz for validation and 4150+ for benches. :) I've tested with the default multiplier x15 and managed to reach 4.2GHz(FSB 280). The board does 350 with alhlon x2, so I think it can be no barrier for the cpu, it only depends on the concrete chip.

What a shame, the MA790FX-DS5 is significantly cheaper solution for full CF mobo.

Bottom line:
1. SB600 is not an obstacle for good OC.
2. Gigabyte MA790FX-DS5 is not recommended at all for that matter. :(

Thanks Guys!
:up: