Help me stabilize my X2 550 unlocked.

G'day,

Just wondering if anyone can offer any advice to try & stabilize my X2 550. Unlocked the additional 2 cores, now here's the fun part.

Core 0 & 3, can Orthos/SuperPi all day long. Pretty much anything.
Core 1 Instant Orthos error & instant round errors running SuperPi.
Core 2 Instant Orthos error BUT can run SuperPi all day long :shocked:

Bios ACC is set all cores to -2%. Have tried all cores 0% - 12% seems to make no difference what these are set on.

Currently 3.2Ghz/1.45v bios set. Which should be stacks for 3.2Ghz. Have tried underclocking also but same symptoms...

The below pic affinity set Core 0 & 3 running Orthos. SuperPi is running Core 2, core 1 is Idle.
http://i44.tinypic.com/f1bpch.gif

Thoughts?

Thanks

C-BuZz

Quote:

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Originally Posted by CandymanCan

I dont know much about unlocking these core's but did you ever think it could be because AMD re-packaged them as X2 and X3's because 1 or more core's were defective to begin with ? I think that might be your problem

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Yeah I did think that & I'm pretty sure that could be the problem.

But hey you never know, someone might know somthing that I don't.. Did you think of that?

C-BuZz

I reccon you should look in if you can disable cores in windows boot up parameeters, or anything like that, or run ACC hack that actually will make the 4th core not run at all.

then you got one core for free, thats 40 bucks straight in youre pocket ;)

What motheboard do you have? Try again 6% on ACC from what i know it is the seting which bring the best stability..
Try with HTT LINK at 1800(instead of 2000) and NB frecuency at 1800 to, just lower the multiplier of them..i thinking at first Deneb 920& 940 which have a little lower HTT and NB(1800) frecuency... may be that two cores can do much-2000
And may be try out different bioses for you MB may be there's one which brings more stability..:up:

so cores 0 and 2 are fine?

but 2 was disabled by factory right? but still core 1 fails? lol i think amd went backwards or something?


what are ur known stable mem speeds? what is nb volt? what is idle and load temps? post ur mem settings.

Have you tried raising the NBvolts above the stock 1.2v setting. The other two cores possiable bieng week,,may need something like 1.34 maybe even higher NBvolts, this may help the IMC with them .

I was under the impression these were from 955/945 batches with disabled cores.. which mean you shouldnt need High NBvolts,, but if there Week you will.

Also +2 +4 or +6 may help as well. I always run Auto or +ALLcores . My M3A was very buggy with my 720,,the UDP4 with correct Bios lets it perform like a normal 4core @ 3600+.


You may also need to keep NB @ 1800-2000 max . Who Knows.

I Have one on the Way will see what 2cores can get me on the Top End , Then ill play the Lotto and see what i get.

. If mine unlocks added Bonus.

Quote:

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Originally Posted by i found nemo

so cores 0 and 2 are fine?

but 2 was disabled by factory right? but still core 1 fails? lol i think amd went backwards or something?


what are ur known stable mem speeds? what is nb volt? what is idle and load temps? post ur mem settings.

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Core 0 & 3 are perfect. Mem is not an issue as I'm only chaning the multi, so ram is running at stock the whole time.

Quote:

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Originally Posted by xdan

What motheboard do you have? Try again 6% on ACC from what i know it is the seting which bring the best stability..
Try with HTT LINK at 1800(instead of 2000) and NB frecuency at 1800 to, just lower the multiplier of them..i thinking at first Deneb 920& 940 which have a little lower HTT and NB(1800) frecuency... may be that two cores can do much-2000
And may be try out different bioses for you MB may be there's one which brings more stability..:up:

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Motherboard is MA790FXT-UD5P. I'll give this a crack.

Quote:

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Originally Posted by gOtVoltage

Have you tried raising the NBvolts above the stock 1.2v setting. The other two cores possiable bieng week,,may need something like 1.34 maybe even higher NBvolts, this may help the IMC with them .

I was under the impression these were from 955/945 batches with disabled cores.. which mean you shouldnt need High NBvolts,, but if there Week you will.

Also +2 +4 or +6 may help as well. I always run Auto or +ALLcores . My M3A was very buggy with my 720,,the UDP4 with correct Bios lets it perform like a normal 4core @ 3600+.


You may also need to keep NB @ 1800-2000 max . Who Knows.

I Have one on the Way will see what 2cores can get me on the Top End , Then ill play the Lotto and see what i get.

. If mine unlocks added Bonus.

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No I haven't tried this yet. I'll give it a go.

C-BuZz

Ok nothing worked. Exactly the same no matter what I try. I think it's safe to say that they are just faulty.

I have had 5 of these so far. 3 of them where able to unlock but where unstable, 2 of them refuse to boot.

I think getting an unlocked one with fully functional cores, you will have to be extremely luckey ;)

I will continue to test these as I get them through thanks to customers ordering them :rofl:

C-BuZz

Quote:

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Originally Posted by C-BuZz

I have had 5 of these so far. 3 of them where able to unlock but where unstable, 2 of them refuse to boot.

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Did you try them all on the same board?

Quote:

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Originally Posted by Jerry Rob

Did you try them all on the same board?

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Yes all in the same board MA790FXT-UD5P. They all have different instability issues. One crash loading Windows (refuse to boot in), one boot into Windows but crash if I try to do anything, one can boot into Windows at 3.8Ghz & do some basic things even SPi but anything stressful will result in a bluescreen.

So out of 5 none have been able to unlock successfully enough to do any benching.

C-BuZz

Quote:

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Originally Posted by C-BuZz

Yes all in the same board MA790FXT-UD5P. They all have different instability issues. One crash loading Windows (refuse to boot in), one boot into Windows but crash if I try to do anything, one can boot into Windows at 3.8Ghz & do some basic things even SPi but anything stressful will result in a bluescreen.

So out of 5 none have been able to unlock successfully enough to do any benching.

C-BuZz

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At any frequency? ... if your getting specific core errors, have you tried individually clocking them in AOD?

Quote:

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Originally Posted by C-BuZz

Yes all in the same board MA790FXT-UD5P...
...So out of 5 none have been able to unlock successfully enough to do any benching.
C-BuZz

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You should really try another board. It's a bitt odd that 5 out of 5 can't be unlocked. Considering other results on this forum, I'm beginning to think that your motherboard has issues. If you tried everything you can whit this one, try another board just to be sure.

Quote:

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Originally Posted by villa1n

At any frequency? ... if your getting specific core errors, have you tried individually clocking them in AOD?

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He's trying to unlock them, he can't do that via AOD.

Quote:

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Originally Posted by villa1n

At any frequency? ... if your getting specific core errors, have you tried individually clocking them in AOD?

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At any frequency. Yes I have tried individually underclocking the faulty core(s) back to 2ghz & they do exactly the same thing.

Quote:

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Originally Posted by Jerry Rob

You should really try another board. It's a bitt odd that 5 out of 5 can't be unlocked. Considering other results on this forum, I'm beginning to think that your motherboard has issues. If you tried everything you can whit this one, try another board just to be sure.

He's trying to unlock them, he can't do that via AOD.

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Really don't think it's motherboard related. I've also tried all 4 different bios's with each individual chip. The reason I say this is because they all have different instability issues which have to be core related.

If I was getting the same issue with all 5 cpu's then yes I would believe that the motherboard is suspect. But they are all different.

You can individually adjust the multi per core in AOD.

C-BuZz
edit: Yes you can enable ACC in AOD & core %'s.

Quote:

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Originally Posted by C-BuZz

Really don't think it's motherboard related. I've also tried all 4 different bios's with each individual chip. The reason I say this is because they all have different instability issues which have to be core related.

If I was getting the same issue with all 5 cpu's then yes I would believe that the motherboard is suspect. But they are all different.

You can individually adjust the multi per core in AOD.

C-BuZz
edit: Yes you can enable ACC in AOD & core %'s.

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You're probably right then. It's a pitty, this lowers the percentage of succesfull unlocks on XS and in general :D


Good to know about ACC and AOD, didnt know that :)

maybe the chache in the l2 department?

Quote:

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Originally Posted by C-BuZz

At any frequency. Yes I have tried individually underclocking the faulty core(s) back to 2ghz & they do exactly the same thing.



Really don't think it's motherboard related. I've also tried all 4 different bios's with each individual chip. The reason I say this is because they all have different instability issues which have to be core related.

If I was getting the same issue with all 5 cpu's then yes I would believe that the motherboard is suspect. But they are all different.

You can individually adjust the multi per core in AOD.

C-BuZz
edit: Yes you can enable ACC in AOD & core %'s.

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I guess you dont have the stepping and month they were made off hand hehe do you? we could compile a list of successful and non successful weeks, see if there is a golden production date :P

Quote:

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Originally Posted by villa1n

I guess you dont have the stepping and month they were made off hand hehe do you? we could compile a list of successful and non successful weeks, see if there is a golden production date :P

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MY 550 is 0921APAW and unlocks as Quad

Quote:

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Originally Posted by villa1n

we could compile a list of successful and non successful weeks, see if there is a golden production date :P

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We definitely need a succesfull unlocking and overclocking Phenom II X2 550 batch list :)
Phenoms II X2 550 are coming to my country this week, I should be prepared :D

Quote:

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Originally Posted by Jerry Rob

It's a pitty, this lowers the percentage of succesfull unlocks on XS and in general :D

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Indeed :( I was hoping for at least one of them to unlock successfully but it didn't happen.

Quote:

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Originally Posted by villa1n

I guess you dont have the stepping and month they were made off hand hehe do you? we could compile a list of successful and non successful weeks, see if there is a golden production date :P

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Only 2 still here at the moment unfortunately, the others have already gone into various pc builds.

Stepping of the two I got here 0920GPMW.

Hopefully will be getting some more throughout the week.

C-BuZz

0921 APAW Same as Hondaguy,, it unlocks nicely,,Testing the volts and NB on UD4P.

1st boot screenshot. All stock except for two extra cores:D

Look at NBvid thats default


http://i168.photobucket.com/albums/u...4P_F5Abios.jpg

Still testing here with M4A79 Bios 1602.... Nice chip it is gotvoltage, Im like'n it so far, Windows 7 RC 64 bit

http://img194.imageshack.us/img194/7792/550quad.png
http://img194.imageshack.us/img194/9...dcinebench.png

Quote:

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Originally Posted by gOtVoltage

0921 APAW Same as Hondaguy,, it unlocks nicely,,Testing the volts and NB on UD4P.

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Nice, both of these unlock with the same stepping. Seems they sent all the bad steppings to Au :ROTF:

C-BuZz

http://img189.imageshack.us/img189/8386/550x437.png
http://img189.imageshack.us/img189/7...0x4superpi.png

DANG Honda :D

Im @ 3500mhz 1.35volts NB2200mhz 1.1v,,bumping it up with MHZ. Ill add volts once i get there;)


C-BuZz,,


Also try Default Volts with AUTO ACC or +2 allcores.

800ram divider or 1066 stock ram timing and NB @stock untill you get it stable.

Quote:

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Originally Posted by gOtVoltage

C-BuZz,,


Also try Default Volts with AUTO ACC or +2 allcores.

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Yes I've already tried this, no good :(

C-BuZz

Quote:

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Originally Posted by C-BuZz

Yes I've already tried this, no good :(

C-BuZz

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What is the Temps Stock with X4cores enabled?

Are you watercooled or using the Stock Air cooling on each chip.

If its the stock ALUMINUM heatsink, it just may only be good for 2xcores Not 4xcores.

Thats the only thing i can think of.ATM.

Quote:

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Originally Posted by gOtVoltage

What is the Temps Stock with X4cores enabled?

Are you watercooled or using the Stock Air cooling on each chip.

If its the stock ALUMINUM heatsink, it just may only be good for 2xcores Not 4xcores.

Thats the only thing i can think of.ATM.

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Bois temps are normal around 30c with 4 cores enabled at stock speed. Using an Opteron heatpipe cooler.

They are definately not overheating.

C-BuZz

Quote:

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Originally Posted by C-BuZz

Bois temps are normal around 30c with 4 cores enabled at stock speed. Using an Opteron heatpipe cooler.

They are definately not overheating.

C-BuZz

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what about full load? These chips prefer "cooler the better". The dual versions are most likely not going to OC as well anyhow. Takes more tweaking.

Quote:

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Originally Posted by charged3800z24

what about full load? These chips prefer "cooler the better". The dual versions are most likely not going to OC as well anyhow. Takes more tweaking.

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I can't get any of them fully loaded, they all have issues...

I can guarantee they are not overheating that's for sure.

C-BuZz

Got my gigabyte GA-MA790FXT-UD5P today, one of my cores is dodgy to

stepping is 0919EPMW.

How can you disable a core? is it possible

Quote:

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Originally Posted by Balb0wa

Got my gigabyte GA-MA790FXT-UD5P today, one of my cores is dodgy to

stepping is 0919EPMW.

How can you disable a core? is it possible

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Bummer. I don't think you can disable cores as far as I know. You can set affinity to select which core's run the program, but as far as disabling a core altogether I don't think it's possible. Your stepping is even earlier than mine. Mabye the later steppings are the one's :confused:

C-BuZz

mybe phenom II 550 have bug in quadcore, because is very high risk to unlock 2core to 4core

cant get mine stable, tried lowering multi on core 0

http://premium1.uploadit.org/bobbybo...re-poo-poo.jpg

Quote:

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Originally Posted by Balb0wa

cant get mine stable, tried lowering multi on core 0

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Same issue as some of mine. Any stress & fail instantly. If you get it stable be sure to let me know :up:

C-BuZz

Quote:

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Originally Posted by C-BuZz

Same issue as some of mine. Any stress & fail instantly. If you get it stable be sure to let me know :up:

C-BuZz

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Hey,, try setting yur Nbvid to 1.25 - 1.3vid... After 3800mhz you will need to run at least that to clock all four cores.

Also it would be good idea to see how High it clocks with Two cores and high NB with 1.3vid on the NB.


1st,,
Clock it as high as you can X2cores then lower the CPU and Nb while keeping the Same volts used with the Max Oc you found in 2xcore mode.

2nd,,
Enable Hybrid option with say 3400mhz to 3600mhz/Nb@2000mhz ( mine does this with Stock volts)on all four cores,

slowly raise the CPU with NB @ stock ,@3800 with Vcore @ 1.44/1.48 and NBvid @ 1.3v it should be more stable than if NBvid was @ 1.1v.


Gonna see what two cores will do soon,, I usually would Clock Two cores first(How i did the 720) ,but was excited as Hybrid enabled all four from the get go.

Mine clocks best with Low HTT and using 20x CPUmulti to get up to 4200mhz Max in TwoCores ..After a lot of Hangs in 2xmode i just went back to Fourcores @4160/2700 with 4xcores in hybrid now.:shrug:

It seems harder for me to get Two cores as stable vs 4cores.

I Know its Bios related and Not the Chip ,r my Chip would not Be able to Bench at 4160mhz.

This is with the Dual Bios Function (Normal vs Hybrid)and the Normal Mode seems harder to tweak. I think the UD4P F5a Bios is better optimized for Hybrid Mode.

NB@2800 550@ 3.8

http://img14.imageshack.us/img14/1253/550nb2800.png

Quote:

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Originally Posted by HondaGuy

NB@2800 550@ 3.8

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Dam u & your l33t processor :rofl:

I rang up about 8 different shops around Au today to try find 0921, but every single one was 0920 GPMW :down:

C-BuZz

Quote:

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Originally Posted by C-BuZz

Dam u & your l33t processor :rofl:

I rang up about 8 different shops around Au today to try find 0921, but every single one was 0920 GPMW :down:

C-BuZz

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Well that makes Two of kind for the Same stepping with X4 3800/2800 or better.


I wonder what (Charged) has,, he should have one today too. He ordered from the EGG i think. Thats where mine came from.

Quote:

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Originally Posted by gOtVoltage

Well that makes Two of kind for the Same stepping with X4 3800/2800 or better.


I wonder what (Charged) has,, he should have one today too. He ordered from the EGG i think. Thats where mine came from.

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Mine is on its way, my wife is going to call me and give me the batch info. I am still at work and will being hitting the Gym afterwords. So, it will be around 7:00pm EST before I can play with it:rolleyes: But I will definently push it tonight.

Quote:

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Originally Posted by charged3800z24

Mine is on its way, my wife is going to call me and give me the batch info. I am still at work and will being hitting the Gym afterwords. So, it will be around 7:00pm EST before I can play with it:rolleyes: But I will definently push it tonight.

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Oh man thats like 5 hrs away, I dont know if I can wait that long to see your results......:rofl:

Good luck tonight, come on batch number...I bet your fingers are crossed :yepp:

Quote:

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Originally Posted by HondaGuy

Oh man thats like 5 hrs away, I dont know if I can wait that long to see your results......:rofl:

Good luck tonight, come on batch number...I bet your fingers are crossed :yepp:

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Well, wife called and here is my CPU

CACYC AC 0921APBW

I will let you guys know tonight;)

Quote:

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Originally Posted by charged3800z24

Well, wife called and here is my CPU

CACYC AC 0921APBW

I will let you guys know tonight;)

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ooooO thats a new one.

whats your your last five on the serial# mines 90020.

I see XSmadness forming with these things.

and ppl say it's not worth it to try and unlock cores!

c-buzz i still think it's cache related or mobo. u have to try another mobo, it's the only thing u haven't touched! just imo.