Phenom 9950 Overclocking

[Rammsteiner]

What did you do that was different from what you were doing before my suggestions??

Keeping NB and HT multipliers the same. Or at least, without too much of a drop.

First I always thought the lower the HT the safer you 'should' be to get a high HTT clock. AFAIK HT has always been at least 1 lower than NB, also because I knew ~2.2Ghz was 100% stable on the NB where as I didnt know what HT was capable off. Besides that it's shown quite a few times that a HT above 2Ghz gives you like zero performance improvement, so why bother?

But well, as I said, then I tried both 8x to get 2Ghz on both HT and NB, but it didnt boot. Then 9x to get 2.25Ghz on both and it worked.

A probably stupid question but I want to be sure;

My NB is probably around the highest it can get from default Vnb now. But I want to OC my RAM which I know it can, or at least could, do 250Mhz (DDR1000) 4-4-4. But I cant get it working. Either it insta errors or even BSOD's in Prime. Voltage range from 2.1 to 2.22Vdimm does not improve. Even running 5-5-5 does not change it. I probably should flash to a new BIOS to be able to increase Vnb to stabilize the IMC more for the RAM? Or wont this help?

When I got my RAM at 250 4-4-4 it was on Windsor F3 which is of course a complete different CPU, no IMC Voltage to worry about although AFAIK increasing Vcore marginally would help sometimes, so I guess adding like 25mV to the Vnb might help? In the end Ive of course 4 DIMMS as well.

To be sure the whole OC didnt become unstable all of a sudden Im now running on DDR667 divider again with default latencies, it works without problem.

So anyone to confirm that Vnb, leaving out that RAM might have degraded a bit eventually, influences you RAM OC abilities?

Stupid question as I said, but it's been a while Ive been busy with K10 and forgot about everything

[Sentential]

Keeping NB and HT multipliers the same.

And that is exactally what appears to be the cause of why I was having issues earlier with overclocking my motherboard. Since I have no way of adjusting the NB multiplier since I have set them both to auto I can now get 3ghz stable

[Titan7171]

Keeping NB and HT multipliers the same. Or at least, without too much of a drop.

First I always thought the lower the HT the safer you 'should' be to get a high HTT clock. AFAIK HT has always been at least 1 lower than NB, also because I knew ~2.2Ghz was 100% stable on the NB where as I didnt know what HT was capable off. Besides that it's shown quite a few times that a HT above 2Ghz gives you like zero performance improvement, so why bother?

But well, as I said, then I tried both 8x to get 2Ghz on both HT and NB, but it didnt boot. Then 9x to get 2.25Ghz on both and it worked.

A probably stupid question but I want to be sure;

My NB is probably around the highest it can get from default Vnb now. But I want to OC my RAM which I know it can, or at least could, do 250Mhz (DDR1000) 4-4-4. But I cant get it working. Either it insta errors or even BSOD's in Prime. Voltage range from 2.1 to 2.22Vdimm does not improve. Even running 5-5-5 does not change it. I probably should flash to a new BIOS to be able to increase Vnb to stabilize the IMC more for the RAM? Or wont this help?

When I got my RAM at 250 4-4-4 it was on Windsor F3 which is of course a complete different CPU, no IMC Voltage to worry about although AFAIK increasing Vcore marginally would help sometimes, so I guess adding like 25mV to the Vnb might help? In the end Ive of course 4 DIMMS as well.

To be sure the whole OC didnt become unstable all of a sudden Im now running on DDR667 divider again with default latencies, it works without problem.

So anyone to confirm that Vnb, leaving out that RAM might have degraded a bit eventually, influences you RAM OC abilities?

Stupid question as I said, but it's been a while Ive been busy with K10 and forgot about everything

First I would take out 2 sticks of ram which I have done myself but Ill get into that later.

If I was you at this point I would try 240fsb, ht and nb set at 9x and memory set at 1/2 (800mhz) gives you 960mhz on the memory,

before you do that though go into widows check what tras and trc are supposed to be set to, then go into memory timings in the bios make sure you choose the option for both and set your memory timings in the top section and the bottom section as cas, ras to cas and ras precharge, tras and trc are all set both times, this is another mistake I was making as setting only the top leaves one memory stick at auto and causes problems. check it out. At least for me this helped out tremendously with getting stable.

And that is exactally what appears to be the cause of why I was having issues earlier with overclocking my motherboard. Since I have no way of adjusting the NB multiplier since I have set them both to auto I can now get 3ghz stable

There ya go, glad I could help

[Sentential]

Thanks, ya its still a bit touchy and I am still seriously considering moving to a 790GX and returning both the nvidia board as well as my GTX260 as a result of the overall instability of the system as a whole

[Titan7171]

Thanks, ya its still a bit touchy and I am still seriously considering moving to a 790GX and returning both the nvidia board as well as my GTX260 as a result of the overall instability of the system as a whole

well maybe its just me but If Im running an Intel cpu Id go with Nvidia or Intel mobo and Nvidia GC

Running AMD Phenom Id go ATI mobo and ATI GC.

They are made for eachother and will compliment eachother. I mean dont get me wrong Im sure certain combinations would work well but I feel better running similar products together

[Rammsteiner]

OMG

What a day this is!

Last night I wanted to flash my BIOS. So I power off, connect Floppy Drive and bootup again. The LED of the Floppy however stayed green and it couldnt read any Floppy's. So I was like... who invented this thing

Next I started to think about Winflash. Stupid but I was at that point lazy, I wanted to sleep. I start it all up, run Winflash and do the things Ive to do. I press 'Update' and next everything freezes up. I got like a heart attack I waited 35 minutes before reseting manually incase the system was actually flashing it but somehow only the screen froze up (you never know). After reset it didnt even started yet, luckily it froze at 0% lol

I decided to do it the next day (so today) cause I had to go to bed really (Ive to work sunday). But I couldnt sleep, I knew I had another Floppy Drive. So I look quickly behind my bed, nada. I try and go back to sleep. But I cant, I check my desk, nada. Try to sleep again and again I couldnt. Then finally looked into my desk commode (or however it's called, sliding things to store stuff in) and found it. I went to bed at 23:30, and there I was 01:15 connecting my Floppy Drive, flashed and went to bed with succes this time. However I could only sleep for 4.5 hours for work. Oh well.

So I got back from work today, went upstairs and tried something different, eplacing two RAM sticks, maybe it might increase results. Sometimes this helps for me. So did the switch, power it on and notice it only reads 3GB instead of 4GB, I reset but still the same. I look at my RAM modules and notice one of them wasnt completely in I felt like a retard

Anyway, put it back in, instead of booting and showing 4GB I got looping C1's. I tried all different RAM module + RAM slot combinations. One worked only in one slot, another one only in one other slot in combination with the former and another one wanted to boot up in combination with the first but it wouldnt be read. Also the first DIMM had to be in RAM slot 3... Nothing else helped. I was ting my pants incase I either killed my nice and rare Micron D9's and/or killed my motherboard DIMM slots (and by putting in a RAM module killing the module as well) and/or I killed the IMC.

Did a few clear CMOS's, no different. At some point some DIMM's didnt want to work at all anymore or actually work in slots it didnt want to work before.

Then I decided to plug it all out, power line out, battery out and a clear CMOS for 20 minutes. Put it all back in, first DIMM into slot 4 but C1... So I thought, maybe that's the broken slot then, I put it in slot 3 and it boots

So next I pick another DIMM and put it in slot 2, motherboard didnt read the DIMM though and only saw the one in slot 3. I put the DIMM, just to try, in slot 4 and it boots as well. Put another DIMM in slot 1, boot and the 4th in slot 2, didnt get read...

I was like, what!? I looked again, and I saw I didnt put it in completely again Put it good, booted up and everything worked fine again...

So, if you thought you did something stupid-ish before, Im sure I just beat you Im glad it's working now, running Prime Blend to be sure but it all seems ok. Ill try, when F1 race is finished, to pick up the OC'ing where I stopped last night

[Titan7171]

OMG

What a day this is!

Last night I wanted to flash my BIOS. So I power off, connect Floppy Drive and bootup again. The LED of the Floppy however stayed green and it couldnt read any Floppy's. So I was like... who invented this thing

Next I started to think about Winflash. Stupid but I was at that point lazy, I wanted to sleep. I start it all up, run Winflash and do the things Ive to do. I press 'Update' and next everything freezes up. I got like a heart attack I waited 35 minutes before reseting manually incase the system was actually flashing it but somehow only the screen froze up (you never know). After reset it didnt even started yet, luckily it froze at 0% lol

I decided to do it the next day (so today) cause I had to go to bed really (Ive to work sunday). But I couldnt sleep, I knew I had another Floppy Drive. So I look quickly behind my bed, nada. I try and go back to sleep. But I cant, I check my desk, nada. Try to sleep again and again I couldnt. Then finally looked into my desk commode (or however it's called, sliding things to store stuff in) and found it. I went to bed at 23:30, and there I was 01:15 connecting my Floppy Drive, flashed and went to bed with succes this time. However I could only sleep for 4.5 hours for work. Oh well.

So I got back from work today, went upstairs and tried something different, eplacing two RAM sticks, maybe it might increase results. Sometimes this helps for me. So did the switch, power it on and notice it only reads 3GB instead of 4GB, I reset but still the same. I look at my RAM modules and notice one of them wasnt completely in I felt like a retard

Anyway, put it back in, instead of booting and showing 4GB I got looping C1's. I tried all different RAM module + RAM slot combinations. One worked only in one slot, another one only in one other slot in combination with the former and another one wanted to boot up in combination with the first but it wouldnt be read. Also the first DIMM had to be in RAM slot 3... Nothing else helped. I was ting my pants incase I either killed my nice and rare Micron D9's and/or killed my motherboard DIMM slots (and by putting in a RAM module killing the module as well) and/or I killed the IMC.

Did a few clear CMOS's, no different. At some point some DIMM's didnt want to work at all anymore or actually work in slots it didnt want to work before.

Then I decided to plug it all out, power line out, battery out and a clear CMOS for 20 minutes. Put it all back in, first DIMM into slot 4 but C1... So I thought, maybe that's the broken slot then, I put it in slot 3 and it boots

So next I pick another DIMM and put it in slot 2, motherboard didnt read the DIMM though and only saw the one in slot 3. I put the DIMM, just to try, in slot 4 and it boots as well. Put another DIMM in slot 1, boot and the 4th in slot 2, didnt get read...

I was like, what!? I looked again, and I saw I didnt put it in completely again Put it good, booted up and everything worked fine again...

So, if you thought you did something stupid-ish before, Im sure I just beat you Im glad it's working now, running Prime Blend to be sure but it all seems ok. Ill try, when F1 race is finished, to pick up the OC'ing where I stopped last night

OMG

that is one crazy night

[Sentential]

well maybe its just me but If Im running an Intel cpu Id go with Nvidia or Intel mobo and Nvidia GC

Running AMD Phenom Id go ATI mobo and ATI GC.

They are made for eachother and will compliment eachother. I mean dont get me wrong Im sure certain combinations would work well but I feel better running similar products together

Well specifically the reason I went AMD to start with was because I wanted to go back to using nVidia cards (never had any problems with ATi per say) and the key thing Im trying to determine is what effect ACC will have on the processor

Im looking at reviews between 790GXs and my 750a comparing what the difference in overclock between the CPUs are and I am not seeing one however if there was a significant difference Id drop this board in a heartbeat.

Reason for this is because as you know my 9950 overclock is pretty terrible (3.0 flat @ 1.55v rougly) and Im trying to see if that is a result of not having ACC or if its just a bad chip.

[charged3800z24]

Well specifically the reason I went AMD to start with was because I wanted to go back to using nVidia cards (never had any problems with ATi per say) and the key thing Im trying to determine is what effect ACC will have on the processor

Im looking at reviews between 790GXs and my 750a comparing what the difference in overclock between the CPUs are and I am not seeing one however if there was a significant difference Id drop this board in a heartbeat.

Reason for this is because as you know my 9950 overclock is pretty terrible (3.0 flat @ 1.55v rougly) and Im trying to see if that is a result of not having ACC or if its just a bad chip.

Well, I can say that on 3 different Phenoms...I noticed 200-300mhz OC difference going to the SB750 board with ACC on. Even on the same SB750 board, I have the same results with ACC "on" compared to "off"

[soundood]

i dont know if you guys know about ACC for Nvidia Chipsets? i didnt until recently, it could be hot air/Vapourware, but i think its possibly true. here the slide.

As you know, AMD SB750 Southbridge supports ACC (Advanced Clock Calibration) technology called to uncover the overclocking potential of AMD Phenom CPUs. New products based on this Southbridge (like 790GX) have already gone on sale as a part of MSI DKA790GX, Biostar TA790GX A2+ and other motherboards.

According to the source, ACC won't be exclusive to AMD for long. If the slide below is true, NVIDIA's plans regarding MCP72/78 unambiguously indicate the complete support of AMD ACC. The company will just have to use the JTAG interface and introduce certain changes into topology, connecting CPU and MCP72/78.
The first motherboards on MCP72/78 with ACC support are expected on September 1.

Note that not all MCP72/78-based motherboards can offer ACC support, since it requires hardware modifications.

source: http://www.digit-life.com/news.html?10/94/01

although original source is nordichardware site i think.

[charged3800z24]

i dont know if you guys know about ACC for Nvidia Chipsets? i didnt until recently, it could be hot air/Vapourware, but i think its possibly true. here the slide.





source: http://www.digit-life.com/news.html?10/94/01

although original source is nordichardware site i think.

Ya, I heard about it.. Just been waiting to see what will show up. If it works, it could be a good setup for AMD. Nvidia has great onboard performance of devices...matching Intels offerings in Harddrive etc...sometimes high CPU usage but still good results.

[Rammsteiner]

i dont know if you guys know about ACC for Nvidia Chipsets? i didnt until recently, it could be hot air/Vapourware, but i think its possibly true. here the slide.





source: http://www.digit-life.com/news.html?10/94/01

although original source is nordichardware site i think.

Very old news

Anyway, I hate something about my setup, I cant OC my RAM any good. I tried setting stupid slow latencies, I tried a few Drive Strength options, I tried Vnb/Vdimm... But everytime after 1~2 minutes in Prime Blend it simply reboots. It always takes just as much time, never even gets to the 2nd test and nothing seems to improve it... So much time spend in HTT OC'ing for nothing (thus far)... Damn.

[Titan7171]

Very old news

Anyway, I hate something about my setup, I cant OC my RAM any good. I tried setting stupid slow latencies, I tried a few Drive Strength options, I tried Vnb/Vdimm... But everytime after 1~2 minutes in Prime Blend it simply reboots. It always takes just as much time, never even gets to the 2nd test and nothing seems to improve it... So much time spend in HTT OC'ing for nothing (thus far)... Damn.

Just to let you know my system is not prime stable. I use my games and 3dm06 as stability tests. One reason for this is that there is no way in hell my system will ever run at 100% for hours on end at high temps that prime Orthos or any of those other extreme tests push the cpu to do.

Once I can play my games for a few hours back to back and once 3dm06 will pass 6 times the 2 cpu tests back to back thats all I ask.

I know others use their system for other purposes so you may need it to be prime stable but Im not going to put my system through that, its already running on edge as it is it doesnt need something to put it over the top.

[gOtVoltage]

Actually using prime one can still POP any AMD MOBO @ 3.5ghz with Phenom.. They draw that much power ATM..That s why i wont Prime anymore..I already know what will happen even @ 1.48v for too many days with Prime ..The Mobo will usually go first...I know ive sent four different mobos back testing this ALL becuse of Prime,, just watch the PWm temps it will tell you everything before you see the MoboMushroom


45nm cant come fast enuff...

If a Mobo can survive 3.5ghz Phenom days on end (GAMING for 6-8hours non stop or doing DVD burning)its a keeper..the 79-T is amazing and ive been pushing 1.7v both CPU/NB for two weeks ...

No ,,i wont run Prime for days on end ,,even using below 1.45v the PWM's still get pushed pretty hard.

Prime is a great tool ,, once you go past a certain VOLTAGE/ with Huge OverClock the current Phenom Mobos still can not handle it for days on end .

[ChrisB17]

Wow I love the phenom. Its the best chip I have ever owned. And I have owned ALOT. But I dont understand it. AOD and CPUZ tell me my speed is 3200mhz. But coretemp,windows,foxone,steam and canirunit.com tell me its only at 2.6ghz. I dont understand why. What is my chip really running at?

[Chicken Patty]

Wow I love the phenom. Its the best chip I have ever owned. And I have owned ALOT. But I dont understand it. AOD and CPUZ tell me my speed is 3200mhz. But coretemp,windows,foxone,steam and canirunit.com tell me its only at 2.6ghz. I dont understand why. What is my chip really running at?

What is your FSB and Multi set to in the BIOS? I tend to trust CPUz over anything as far as clocks are concerned.

[ChrisB17]

200fsb. 16x multi.

[Chicken Patty]

200fsb. 16x multi.

Thats what I run and that is 3.2 GHz. What does CPUz say? Post a screenie if possible.

[ChrisB17]

[demonkevy666]

Actually using prime one can still POP any AMD MOBO @ 3.5ghz with Phenom.. They draw that much power ATM..That s why i wont Prime anymore..I already know what will happen even @ 1.48v for too many days with Prime ..The Mobo will usually go first...I know ive sent four different mobos back testing this ALL becuse of Prime,, just watch the PWm temps it will tell you everything before you see the MoboMushroom


45nm cant come fast enuff...

If a Mobo can survive 3.5ghz Phenom days on end (GAMING for 6-8hours non stop or doing DVD burning)its a keeper..the 79-T is amazing and ive been pushing 1.7v both CPU/NB for two weeks ...

No ,,i wont run Prime for days on end ,,even using below 1.45v the PWM's still get pushed pretty hard.

Prime is a great tool ,, once you go past a certain VOLTAGE/ with Huge OverClock the current Phenom Mobos still can not handle it for days on end .

well maybe we need a board with digital ones and more of them like one those new X58 boards. 10+3 and some with 16+3 power phase.

feels like AMD is getting the shaft here.

[charged3800z24]

I just cannot get below 22 on Pi..I will just wait for Deneb.. I am even folding on core 3 I ran Pi on Core 1

[merkk1]

ChrisB17
Hi i just check on my Foxconn A79A-s and if you have AOD and Foxone open at the same time they will not read the mother board setting right showing incorrect data on there screens .

[Titan7171]

I just cannot get below 22 on Pi..I will just wait for Deneb.. I am even folding on core 3 I ran Pi on Core 1

yes you can you need to get that memory over 500mhz

[lism]

OMG

What a day this is!

Last night I wanted to flash my BIOS. So I power off, connect Floppy Drive and bootup again. The LED of the Floppy however stayed green and it couldnt read any Floppy's. So I was like... who invented this thing

Lol. You flipped the cable the wrong way. Floppy-drives start to blink green when powered on / cable wrongly attached

Flip cable and the problem is solved.

[Chicken Patty]

Lol. You flipped the cable the wrong way. Floppy-drives start to blink green when powered on / cable wrongly attached

Flip cable and the problem is solved.

now that I remember, I went through that once, and it was the cable inserted wrong. Flipped it and it worked again.