Overclock.net › Forums › AMD › AMD CPUs › AMD Bulldozer and Piledriver Overclocking Guide - Asus Motherboard
New Posts  All Forums:Forum Nav:

AMD Bulldozer and Piledriver Overclocking Guide - Asus Motherboard - Page 66

Poll Results: Was this helpful?

 
  • 96% (404)
    Yes
  • 3% (13)
    No
417 Total Votes  
post #651 of 4087
Thanks for the quick reply.

Since you did not comment on setting the current to an amount below 130%, I'll assume I should leave it there.

Your turbo comment surprised me. I could have sworn that when I was running stock but started to tweak the turbo ratio, that it was the second setting (4.1 of the 3.5 - 3.8 -4.1 frequencies that I observed at at stock settings) that was adjusting. (of course its not just computer memory that fails with age rolleyes.gif )

Regardless, that brings up a question as to how whichever turbo mode that is not settable is determined, and how it is impacted by changing either the base CPU ratio or the turbo ratio?

Anyone have further thoughts on this?

Thanks again for your help!
post #652 of 4087
Thread Starter 
Quote:
Originally Posted by Qbiz4man View Post

Thanks for the quick reply.

Since you did not comment on setting the current to an amount below 130%, I'll assume I should leave it there. Warning: Spoiler! (Click to show)
Your turbo comment surprised me. I could have sworn that when I was running stock but started to tweak the turbo ratio, that it was the second setting (4.1 of the 3.5 - 3.8 -4.1 frequencies that I observed at at stock settings) that was adjusting. (of course its not just computer memory that fails with age rolleyes.gif )

Regardless, that brings up a question as to how whichever turbo mode that is not settable is determined, and how it is impacted by changing either the base CPU ratio or the turbo ratio?

Anyone have further thoughts on this?

Thanks again for your help!

Oops. Yeah, you can just leave the Current setting at 130%. It only allows the CPU to access it if required, otherwise there's no difference. I'm not sure of the reason to have adjustments, as other motherboard manufacturers have full current as a stock setting, and offer no adjustments.

Turbo mode is very strange, and I didn't do a whole lot of testing. From what I could tell the CPU frequency didn't effect the Turbo frequency at all, which is why I just recommend to disable it for overclocking.

For example: (Using the FX 8350 - 4.0Ghz - T1 4.1Ghz - T2 4.2Ghz)
If you increase the CPU frequency above 4.1Ghz and leave Turbo enabled - then your CPU will run at 4.1Ghz under load - unless it's using only 4 or less cores and then it will run at 4.2Ghz
To simplify things and since you are only going for a small OC - I would recommend you use Offset Voltage mode, keep the power saving features enabled, and then just OC your CPU with Turbo Disabled.

That way it will downclock to 1.4Ghz when idle - and boost to your OC settings when you need it.
Edited by ComputerRestore - 5/24/13 at 4:24pm
post #653 of 4087
hi all
hoping someone can help me i noticed in hwinfo64 my 3vsb is @0.192v what should it be seems low
main1
(17 items)
 
  
CPUMotherboardGraphicsRAM
fx 8350 asus crosshair v formula z xfx r9 290 core edition  g skill trident x 
Hard DriveCoolingCoolingCooling
ocz agility 3 XSPC RayStorm  xspc EX 360 ek d5 vario 
CoolingCoolingCoolingOS
ex 240 xspc x2o 750 v4 ek r9 290x v2  windows 7 x64 
MonitorKeyboardPowerCase
samsung d6100 40" logitech ocz zx 1000w haf 932 
Mouse
corsair m60 
  hide details  
Reply
main1
(17 items)
 
  
CPUMotherboardGraphicsRAM
fx 8350 asus crosshair v formula z xfx r9 290 core edition  g skill trident x 
Hard DriveCoolingCoolingCooling
ocz agility 3 XSPC RayStorm  xspc EX 360 ek d5 vario 
CoolingCoolingCoolingOS
ex 240 xspc x2o 750 v4 ek r9 290x v2  windows 7 x64 
MonitorKeyboardPowerCase
samsung d6100 40" logitech ocz zx 1000w haf 932 
Mouse
corsair m60 
  hide details  
Reply
post #654 of 4087
Trying out those power saving settings within BIOS, C6 state, C1E, and coo and quiet, did not seem to make any difference for me. I remember you talked about it only working if i altered the offset voltage for the CPU, which I have done, but it still did not change anything within WIndows. Is there anything I'm missing?
Destrto3
(17 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8120 M5A99FX PRO R2.0 Radeon R9 270X Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... 
RAMHard DriveHard DriveHard Drive
Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... SanDisk Extreme 240 Western Digital WDC WD10 EARS 1TB Seagate ST2000DM 2TB 
Optical DriveCoolingOSMonitor
TSSTcorp CDDVDW SH-222BB EK Supreme LTx (AMD) Windows 8.1 Sceptre 32" LCD Flat Panel TV 
KeyboardPowerCaseMouse
Cooler Master Devastator ThermalTake TR2 RX 850W Corsair Obsidian 750D Cooler Master Devastator 
Audio
OnBoard 
  hide details  
Reply
Destrto3
(17 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8120 M5A99FX PRO R2.0 Radeon R9 270X Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... 
RAMHard DriveHard DriveHard Drive
Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... SanDisk Extreme 240 Western Digital WDC WD10 EARS 1TB Seagate ST2000DM 2TB 
Optical DriveCoolingOSMonitor
TSSTcorp CDDVDW SH-222BB EK Supreme LTx (AMD) Windows 8.1 Sceptre 32" LCD Flat Panel TV 
KeyboardPowerCaseMouse
Cooler Master Devastator ThermalTake TR2 RX 850W Corsair Obsidian 750D Cooler Master Devastator 
Audio
OnBoard 
  hide details  
Reply
post #655 of 4087
Thread Starter 
Quote:
Originally Posted by Destrto View Post

Trying out those power saving settings within BIOS, C6 state, C1E, and coo and quiet, did not seem to make any difference for me. I remember you talked about it only working if i altered the offset voltage for the CPU, which I have done, but it still did not change anything within WIndows. Is there anything I'm missing?

As long as you are using "Offset Voltage Mode" instead of Manual Mode and you are at least running a Balanced Power Profile in Windows then the CPU should down clock at idle, as well as the voltage should drop.
post #656 of 4087
Quote:
Originally Posted by ComputerRestore View Post

As long as you are using "Offset Voltage Mode" instead of Manual Mode and you are at least running a Balanced Power Profile in Windows then the CPU should down clock at idle, as well as the voltage should drop.

That may be what I overlooked. I'm still running High Performance profile within Windows.
Destrto3
(17 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8120 M5A99FX PRO R2.0 Radeon R9 270X Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... 
RAMHard DriveHard DriveHard Drive
Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... SanDisk Extreme 240 Western Digital WDC WD10 EARS 1TB Seagate ST2000DM 2TB 
Optical DriveCoolingOSMonitor
TSSTcorp CDDVDW SH-222BB EK Supreme LTx (AMD) Windows 8.1 Sceptre 32" LCD Flat Panel TV 
KeyboardPowerCaseMouse
Cooler Master Devastator ThermalTake TR2 RX 850W Corsair Obsidian 750D Cooler Master Devastator 
Audio
OnBoard 
  hide details  
Reply
Destrto3
(17 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8120 M5A99FX PRO R2.0 Radeon R9 270X Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... 
RAMHard DriveHard DriveHard Drive
Kingston HyperX Blu 8GB (2 x 4GB) 240-Pin DDR3 ... SanDisk Extreme 240 Western Digital WDC WD10 EARS 1TB Seagate ST2000DM 2TB 
Optical DriveCoolingOSMonitor
TSSTcorp CDDVDW SH-222BB EK Supreme LTx (AMD) Windows 8.1 Sceptre 32" LCD Flat Panel TV 
KeyboardPowerCaseMouse
Cooler Master Devastator ThermalTake TR2 RX 850W Corsair Obsidian 750D Cooler Master Devastator 
Audio
OnBoard 
  hide details  
Reply
post #657 of 4087
Quote:
Originally Posted by ComputerRestore View Post

Oops. Yeah, you can just leave the Current setting at 130%. It only allows the CPU to access it if required, otherwise there's no difference. I'm not sure of the reason to have adjustments, as other motherboard manufacturers have full current as a stock setting, and offer no adjustments.

Turbo mode is very strange, and I didn't do a whole lot of testing. From what I could tell the CPU frequency didn't effect the Turbo frequency at all, which is why I just recommend to disable it for overclocking.

For example: (Using the FX 8350 - 4.0Ghz - T1 4.1Ghz - T2 4.2Ghz)
If you increase the CPU frequency above 4.1Ghz and leave Turbo enabled - then your CPU will run at 4.1Ghz under load - unless it's using only 4 or less cores and then it will run at 4.2Ghz
To simplify things and since you are only going for a small OC - I would recommend you use Offset Voltage mode, keep the power saving features enabled, and then just OC your CPU with Turbo Disabled.

That way it will downclock to 1.4Ghz when idle - and boost to your OC settings when you need it.

I see what you mean. But that makes me think a bit. The purpose for this particular overclock (besides the learning aspect) is to tune a machine for a bit more than stock performance for everyday use including gaming.

I am now running at what appears to be a stable 4.0 at 1.368v. ( at least based on multiple hours of various P95 and OCCT runs) It will down clock to 1.4 at .9v. But I wonder if I have achieved my objective?

With stock settings I had 3.5 with a boost to 3.8 on all cores and to 4.1 on 3 (or 4?). Under these settings I seemed to get intermediate states as well (i.e. 3000) .

Now I seem to get just two states 1.4 and 4.0. Given many games don't use all cores, am I actually set up to be slower for gaming than I was before?

If so then it suggests a few things:

1. I need to at least go to 4.1 base clock to ensure equal performance as stock settings in games (but at the apparent cost of some power savings (i.e the intermediate states)

2. Perhaps upping the turbo ratio may be a better way to go instead of upping vase ratio. If this results in T1 and T2 going higher, don't I get better real world performance from this?

3. I see the point of your FSB addition. Based on the way the turbo mode appears to work, it looks like the only way to get an increase across the board may be to up FSB (of course it may cause my memory to need to run at a lower speed). If I can get away with a 210 fsb without lowering memory speed, I should get 3675 with a T1 - T2 boost of 3990 - 4305

Interesting. What do you guys think?
post #658 of 4087
Thread Starter 
Quote:
Originally Posted by Qbiz4man View Post

I see what you mean. But that makes me think a bit. The purpose for this particular overclock (besides the learning aspect) is to tune a machine for a bit more than stock performance for everyday use including gaming.

I am now running at what appears to be a stable 4.0 at 1.368v. ( at least based on multiple hours of various P95 and OCCT runs) It will down clock to 1.4 at .9v. But I wonder if I have achieved my objective?

With stock settings I had 3.5 with a boost to 3.8 on all cores and to 4.1 on 3 (or 4?). Under these settings I seemed to get intermediate states as well (i.e. 3000) .

Now I seem to get just two states 1.4 and 4.0. Given many games don't use all cores, am I actually set up to be slower for gaming than I was before?

If so then it suggests a few things:

1. I need to at least go to 4.1 base clock to ensure equal performance as stock settings in games (but at the apparent cost of some power savings (i.e the intermediate states)

2. Perhaps upping the turbo ratio may be a better way to go instead of upping vase ratio. If this results in T1 and T2 going higher, don't I get better real world performance from this?

3. I see the point of your FSB addition. Based on the way the turbo mode appears to work, it looks like the only way to get an increase across the board may be to up FSB (of course it may cause my memory to need to run at a lower speed). If I can get away with a 210 fsb without lowering memory speed, I should get 3675 with a T1 - T2 boost of 3990 - 4305

Interesting. What do you guys think?

You bring up some very good points. If upping the Turbo ratio will increase the secondary ratio as well for the intermediate performance/power savings then that would be the best choice. I couldn't verify if that's how it worked on the little bit of testing I did with it (even setting the priority for a single program to 4 cores, would result in the OS or some other background program to use even 1% of a 5th core resulting in 0% T2 usage)

The FSB increase was the only way I could create a variable Turbo profile outside of using Software, without having to use Offset voltage mode, but still isn't ideal. - Memory tuning to suit desired turbo ratio etc.

Considering that it seems that one almost never sees the secondary Turbo kick in, the best option seems to be Offset Voltage mode with power savings. You can even change the + offset to - offset to have it reduce the amount of voltage under load, as you may find that it requires a lot less voltage to keep stability than what is automatically being set, offering even more power and heat savings than a custom turbo profile with stock voltages.
post #659 of 4087
Ok, played with it all a bit more and here is what I found:

For Ref on my fx-6300 stock is Base 3500, T1 3800, T2 4100.

If you adjust the turbo ratio in the Bios it adjusts T2, not T1

If you adjust the base CPU ratio it adjusts base, but leaves T1 and T2 the same (which as you pointed out earlier can be an issue if base gets over 3800 with turbo enabled , then T1 will drop it down.

T2 seems to be illusive and only shows up under some kind of partial load. When I run P95 v25.11, I can get it to show up and fluctuate between T1 and T2 when I run the benchmark (which takes one core to 100%). That doesn't happen if I use Benchmark on P95 v 27.7 (it kicks all cores to 100% even though it only shows one worker thread?)

I am curious, any one know what characteristics T1 and T2 mode are supposed to be engaged?

So based on my earlier comments, I must revise a bit.

It appears that there is very little value in adjusting turbo mode ratio by itself. Further, since you cant do base over 3800 without running into T1's limit - there seems to be little point in upping base multiplier above 3800 and leaving turbo enabled.

While moving FSB will alleviate this issue, I am not sure it gains much (outside of the normal gains from upping FSB) because (unless someone can point to a different observation about how T2 is supposed to work) it appears that very little time is spent at T2 ratios, and even then it only with a subset of cores.

In short, in my case it appears disabling turbo and running base ratio up to 20 (4.0) seems to be better than any form of turbo unless it takes take FSB over 212 (which for me also has the downside that in-order to keep CNQ working, I have to specify offset, and where I pick the lowest as auto it jacks up volts over 1.42 whenever turbo is enabled).

And of course, I could just take it to 4.1 and be done with it:rolleyes:

Thanks for all your help. Maybe I'll get another one of these boards & CPUs just to play with biggrin.gif (also makes me wonder how my 965BE would do) tongue.gif

Thanks again for the feedback.
post #660 of 4087
Thread Starter 
Quote:
Originally Posted by Qbiz4man View Post

Ok, played with it all a bit more and here is what I found:

For Ref on my fx-6300 stock is Base 3500, T1 3800, T2 4100.

If you adjust the turbo ratio in the Bios it adjusts T2, not T1

If you adjust the base CPU ratio it adjusts base, but leaves T1 and T2 the same (which as you pointed out earlier can be an issue if base gets over 3800 with turbo enabled , then T1 will drop it down.

T2 seems to be illusive and only shows up under some kind of partial load. When I run P95 v25.11, I can get it to show up and fluctuate between T1 and T2 when I run the benchmark (which takes one core to 100%). That doesn't happen if I use Benchmark on P95 v 27.7 (it kicks all cores to 100% even though it only shows one worker thread?)

I am curious, any one know what characteristics T1 and T2 mode are supposed to be engaged? Warning: Spoiler! (Click to show)
So based on my earlier comments, I must revise a bit.

It appears that there is very little value in adjusting turbo mode ratio by itself. Further, since you cant do base over 3800 without running into T1's limit - there seems to be little point in upping base multiplier above 3800 and leaving turbo enabled.

While moving FSB will alleviate this issue, I am not sure it gains much (outside of the normal gains from upping FSB) because (unless someone can point to a different observation about how T2 is supposed to work) it appears that very little time is spent at T2 ratios, and even then it only with a subset of cores.

In short, in my case it appears disabling turbo and running base ratio up to 20 (4.0) seems to be better than any form of turbo unless it takes take FSB over 212 (which for me also has the downside that in-order to keep CNQ working, I have to specify offset, and where I pick the lowest as auto it jacks up volts over 1.42 whenever turbo is enabled).

And of course, I could just take it to 4.1 and be done with it rolleyes.gif

Thanks for all your help. Maybe I'll get another one of these boards & CPUs just to play with biggrin.gif (also makes me wonder how my 965BE would do) tongue.gif

Thanks again for the feedback.

T1 - All Cores - As long as there is thermal headroom
T2 - 1/2 Cores - As long as there is thermal headroom

As you've seen T2 is essentially useless as the requirements to get it to actually activate are difficult. It would have to be a single threaded load, without any further multitasking.

Oh right. It is only T2 that you can increase in the BIOS, I forgot about that. Now I remember the whole reason for FSB + Turbo, because it's the only way to change T1 outside of software.

If you want something further to play around with, you can make your own power saving profile. I'll show you an example.
T1 = 4.1Ghz (200x20.5)

So you could increase the FSB to something like 220 to make T1 4.51Ghz.
Then you could lower the CPU Ratio to something low for idle situations - Maybe 8 or 1.76Ghz - or as low as you can get it to run.

If I remember correctly, the CPU ratio determines the Offset Base voltage, so you can tell it to add voltage under load, while still having it drop at idle.
Edited by ComputerRestore - 5/27/13 at 6:10am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › AMD Bulldozer and Piledriver Overclocking Guide - Asus Motherboard