Phenom II steppings and max OC 550-940 - Page 13 - Overclock.net

pow3rtr1p · 01-17-09

I finally seem to have gotten 3.64 GHz stable now. Seeing as I was running my E8400 at 3.6 GHz, and now I have a faster Quad, looks like I actually got a decent upgrade.

I am still fiddling with voltages. I was getting memory dump BSODs, so I upped both the RAM and CPU. I may be able to back the CPU off a notch, but we'll see. I'm still going to keep pushing higher, since my temps are still perfectly safe. At first, this rig was irritating me, thanks to DFI's pickiness with RAM settings. Now, however, I am having a blast seeing how far I can push this chip. 4 GHz, perhaps?

Just a quick question, though. Are you NB and HT voltages only dependent on their overall clocks (so, if they are running at 1500 MHz each, no voltage increase) or would do you have to change voltages based on FSB? I am fine running them below stock speeds if it means lower voltages and a higher CPU OC.

I will post a screeny when it gets through this round of Prime 95.

[edit]

Here's the screenshot.

hxcnero · 01-17-09

add me to the list.

phenom 2 940
revision RB-C2
stepping CACVC AC 08S0BPMW(s might be a 5 im not sure :P)
3706MHZ 17x218
1.488 V
NB clock- 1744MHZ

http://valid.canardpc.com/show_oc.php?id=486490

http://service.futuremark.com/compare?3dm06=9665664

sp4wners · 01-17-09

Some tests with my new Phenom 920@3.64GHz. :P

3DMark 2006: http://service.futuremark.com/compare?3dm06=9665999 - 16871
3DMark Vantage: http://service.futuremark.com/compare?3dmv=698174 - 10198

Drin · 01-17-09

Quote:

Originally Posted by robbo2

once i get my water set it up on the foxconn board an copy nvspec's overclock i will be laughing!! I might just have the fastest phenom in brisbane!! hear that drin???

Fastest in brisbane? Mate I think you have it wrong, you mean you will have the fastest in Australia

Would be awesome, and I'm sure the new mobo will be fun to play with, I've heard good things about that board!

Also... 3.6ghz on a 920? Excellent, keep up the good work guys!

I've spent probably around 24 hours on a 3.8ghz OC, since I got it rock solid (tested a couple of times, all OCCT stable) trying to get it stable on a lower vcore, or testing different mobo options to see what they did. One that interested me was a 'hidden' (only visible by pressing f4) cpu feature labelled 'Microcode Updation'. A quick google search led me to believe that it was similar to the one asus uses for intel chipsets, and is used by asus to pass 'microcode' in a bios update to the processor from the manufacturer.

Most OC guides that have it mentioned seem to recommend having it disabled, but a few intel ones said to have it enabled. In either case I don't think it matters, or if its relevant at all, since I believe it would only come into effect the first time you flashed a new bios (just guessing).

Anyway, enabling/disabling it seemed to make no difference so far, same with disabling the second onboard raid for my mobo (due to the fact that its a pita, to get my raid setup and backup drive working I need to use both the SB600 and marvel). If anyone is wondering about microcode updation I would leave it disabled, seems to do nothing.

Cpu-z: http://valid.canardpc.com/show_oc.php?id=486463

Going to try for 3.9ghz now, and I think that will be possible. 4.0ghz? Hmmm... hopefully.

PatrickVanHelden · 01-17-09

Guys I can get so many clocks to boot but I cant seem to get anything stable over 3.4ghz.. I found my MB's Max FSB, its 263. Has anyone else seen what there's was (ASUS guys)? I backed everything down so's I could try and find my CPU's max fsb but there are so many more varriables than my dual core. It is probably something I am doing wrong..lol.. here are some screenies of a few diff clocks. Please look and see if there is something I should change to try and find my cpus MAX clock..

Ok here is the screen shot from my Max FSB, Is there anything diff that I could have done?

here is everything BONE STOCK with my ram wasn't even at 1066 not too bad..

ran 3dmark but BSOD'd on Prime 95 test.

same as above runs 3dmark but BSOD's when run Prime 95

HELP!

PatrickVanHelden · 01-17-09

Quote:

Originally Posted by oneluvballer21

This thread will be dedicated to making a list of all the Phenom II steppings and the max stable overclocks OCN users have attained with those steppings. I don't want to argue about what "stable" is, so please use good judgment that your OC is stable before you spread the news... this is here to help people, so I would like solid info. That doesn't mean 24hr Prime, it just means that your system isn't crashing when its being stressed by stress programs or intensive gaming, at whatever interval you deem to prove stability.

To submit a listing, please submit a post containing the following:

-Phenom II type (920, 940, etc)
-CPU stepping (printed on the CPU IHS) and manufacturing date (i.e. MCBBF 0109MPM, or whatever you have)
-Revision (check CPU-Z)
-max CPU clock speed, reference clock and multiplier
-CPU voltage
-CPU-NB voltage
-Northbridge clock (check CPU-Z) and voltage
-HTT link speed and voltage
-motherboard used
-motherboard BIOS revision
-type of cooling
PLEASE post a screenshot of your CPU-Z data with both the CPU and Memory tabs viewable... it makes it easier for me to find certain information for the database.

If I'm forgetting a pertinent line of info, please let me know!

I'll be updating this as often as possible, but don't use CAPS if I take a couple days to catch up!

And please feel free to re-submit updated OC's, but be sure to note any changes to the system and/or specs.

Post 'em up!!

Can we add what operating system everyone is using?

Drin · 01-17-09

Quote:

Originally Posted by PatrickVanHelden

Guys I can get so many clocks to boot but I cant seem to get anything stable over 3.4ghz.. I found my MB's Max FSB, its 263. Has anyone else seen what there's was (ASUS guys)? I backed everything down so's I could try and find my CPU's max fsb but there are so many more varriables than my dual core. It is probably something I am doing wrong..lol.. here are some screenies of a few diff clocks. Please look and see if there is something I should change to try and find my cpus MAX clock..

Ok here is the screen shot from my Max FSB, Is there anything diff that I could have done?
...

here is everything BONE STOCK with my ram wasn't even at 1066 not too bad..
...

ran 3dmark but BSOD'd on Prime 95 test.
...

same as above runs 3dmark but BSOD's when run Prime 95
...

HELP!

I'll give it my best shot man, but I'm pretty tired (was about to head off to sleep actually, but thought I'd drop by first). Try lowering your NB speed to begin with, it only has to be > or = to your HT link speed for stability, so it seems. Atm its about double, and while that does not mean its causing the instability, you should try to rule it out as a potential factor. I leave my HT link @ '1ghz' in my mobo, which is really just the 5x multiplier, since under cold you need to have it set at this speed to avoid coldbugs.

Now I'm not under freezing conditions, but I thought it might help so thats what I've used so far, seems to be more stable. I keep my cpu-NB multi @ 5x-6x usually to ensure its higher, but to keep it down as well.

You should increase your VDDA voltage, which under the bios should be 'CPU VDDA Voltage'. It helps maintain the voltage regulation to your cpu, and can help maintain stability (I once had an OC unstable until I maxed it out). I don't believe it increases temps by much, but keep on monitoring your mobo temps after the change to be safe. It does not vary by much, and I have mine on its max value of 2.8 24/7 now.

Also, try to bump up your SB voltage a bit more, it can help in maintaining stability. I notice your mobo temp is 34, and thats fine where it is. 40 is a bit high, but still safe, while 45 starts to become dangerous and should definitely, definitely be avoided.

Standard Processor-NB voltage is 1.25 for my board, and it could be the same for yours (I believe your board is an Asus SB600 correct?). If I read correctly (sorry I'm really tired) it's listed as the VDDNB voltage in the screenshots. If so, try reducing it to 1.25 or 1.35 at most for the time being. If you lower your NB clock like I sugested, it should be just fine.

After that, I would recommend trying to max your NB volts (under the Northbridge voltage section, set it to manual) one step at a time, to as high as they are allowed. On my mobo, maxing them all out results in a one degree, two at most, increase on my mobo temps. However our boards are not identical, so you must make sure your temps are safe. I would recommend doing one notch up, checking for temps/stability, then going back to the bios again. And do this only if you think your mobo is adequately cooled - the SB600 asus boards do not seem to allow much variation in terms of mobo voltages but its better to be safe than sorry.

Finally, have you done the multi only test? Where you try to raise your cpu's clock based on multi alone (i.e. 15x200 HT = 3.0ghz stock, 15.5x200 = 3100ghz, 16x200 = 3200ghz) That's always a good place to start.

Hope that helps, if I'm not making any sense (really, REALLY tired atm) just give me a yell. Good luck on your oc!

P.S. Random thought: if you upgraded from an AMD dual-core processor and did not reformat, uninstall the dual core optimizer if you installed it. It's meant only for the dual cores, and does nothing for us except potentially cause problems.

Thats all I can think of for now.

PatrickVanHelden · 01-17-09

Quote:

Originally Posted by Drin

I'll give it my best shot man, but I'm pretty tired (was about to head off to sleep actually, but thought I'd drop by first). Try lowering your NB speed to begin with, it only has to be > or = to your HT link speed for stability, so it seems. Atm its about double, and while that does not mean its causing the instability, you should try to rule it out as a potential factor. I leave my HT link @ '1ghz' in my mobo, which is really just the 5x multiplier, since under cold you need to have it set at this speed to avoid coldbugs.

Now I'm not under freezing conditions, but I thought it might help so thats what I've used so far, seems to be more stable. I keep my cpu-NB multi @ 5x-6x usually to ensure its higher, but to keep it down as well.

You should increase your VDDA voltage, which under the bios should be 'CPU VDDA Voltage'. It helps maintain the voltage regulation to your cpu, and can help maintain stability (I once had an OC unstable until I maxed it out). I don't believe it increases temps by much, but keep on monitoring your mobo temps after the change to be safe. It does not vary by much, and I have mine on its max value of 2.8 24/7 now.

Also, try to bump up your SB voltage a bit more, it can help in maintaining stability. I notice your mobo temp is 34, and thats fine where it is. 40 is a bit high, but still safe, while 45 starts to become dangerous and should definitely, definitely be avoided.

Standard Processor-NB voltage is 1.25 for my board, and it could be the same for yours (I believe your board is an Asus SB600 correct?). If I read correctly (sorry I'm really tired) it's listed as the VDDNB voltage in the screenshots. If so, try reducing it to 1.25 or 1.35 at most for the time being. If you lower your NB clock like I sugested, it should be just fine.

After that, I would recommend trying to max your NB volts (under the Northbridge voltage section, set it to manual) one step at a time, to as high as they are allowed. On my mobo, maxing them all out results in a one degree, two at most, increase on my mobo temps. However our boards are not identical, so you must make sure your temps are safe. I would recommend doing one notch up, checking for temps/stability, then going back to the bios again. And do this only if you think your mobo is adequately cooled - the SB600 asus boards do not seem to allow much variation in terms of mobo voltages but its better to be safe than sorry.

Finally, have you done the multi only test? Where you try to raise your cpu's clock based on multi alone (i.e. 15x200 HT = 3.0ghz stock, 15.5x200 = 3100ghz, 16x200 = 3200ghz) That's always a good place to start.

Hope that helps, if I'm not making any sense (really, REALLY tired atm) just give me a yell. Good luck on your oc!

P.S. Random thought: if you upgraded from an AMD dual-core processor and did not reformat, uninstall the dual core optimizer if you installed it. It's meant only for the dual cores, and does nothing for us except potentially cause problems.

Thats all I can think of for now.

CRAP! I KNEW I FORGOT SOMETHING!!!! I still have the EFFING DUAL CORE OPTIMIZER INSTALLED! I hope it gets better! lol

THANKS!

Gen · 01-17-09

Quote:

Originally Posted by hxcnero

add me to the list.

phenom 2 940
revision RB-C2
stepping CACVC AC 08S0BPMW(s might be a 5 im not sure :P)
3706MHZ 17x218
1.488 V
NB clock- 1744MHZ

http://valid.canardpc.com/show_oc.php?id=486490

http://service.futuremark.com/compare?3dm06=9665664

That S is a 5, 50th week of 08

Gen · 01-17-09

Well, after all this time, I finnaly had a core fail in Prime95 with settings in sig

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Phenom II steppings and max OC 550-940

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