Overclock.net › Forums › AMD › AMD CPUs › AMD Phenom II 955 BE Overclocking
New Posts  All Forums:Forum Nav:

AMD Phenom II 955 BE Overclocking

post #1 of 21
Thread Starter 
FSB: 200Mhz
Multiplier: 19
Core speed: 3.8Ghz
Vcore: 1.424v

Temps: 54-57C load


45C or so while gaming, is this okay?
post #2 of 21
You may be able to drop the volts just a little to around 1.38-1.4v but otherwise no problems.
post #3 of 21
Please post the rest of your system in usercp so we know what hardware you have got.
Fear The Badger
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 955BE 4.2Ghz@1.44v Asus M4A89GTD PRO MSI GTX460 Hawk 910/1820/1950 2x2GB G.Skill Trident ddr3 1600 
Hard DriveOptical DriveOSPower
WD Blue 500GB LG Windows 7 Ultimate X64 Corsair VX550 
Case
Antec 902 V3 Black 
  hide details  
Reply
Fear The Badger
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 955BE 4.2Ghz@1.44v Asus M4A89GTD PRO MSI GTX460 Hawk 910/1820/1950 2x2GB G.Skill Trident ddr3 1600 
Hard DriveOptical DriveOSPower
WD Blue 500GB LG Windows 7 Ultimate X64 Corsair VX550 
Case
Antec 902 V3 Black 
  hide details  
Reply
post #4 of 21
Thread Starter 
Quote:
Originally Posted by full_force1986 View Post
Please post the rest of your system in usercp so we know what hardware you have got.
updated


MSI 870A-G54
2x MSI Twin Frozr II 6870
AMD Phenom II 955 BE
4GB DDR3 1600 memory
Zalman 9500A CPU cooler
Antec 900 II case
Corsair 750TX PSU
post #5 of 21
Be very careful oc'ing on that board as it is a MSI 4+1 with no vrm cooling. I would put everything back to stock before something goes pop and someone like xd_1771 can clarify if you should oc on that board.
Fear The Badger
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 955BE 4.2Ghz@1.44v Asus M4A89GTD PRO MSI GTX460 Hawk 910/1820/1950 2x2GB G.Skill Trident ddr3 1600 
Hard DriveOptical DriveOSPower
WD Blue 500GB LG Windows 7 Ultimate X64 Corsair VX550 
Case
Antec 902 V3 Black 
  hide details  
Reply
Fear The Badger
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 955BE 4.2Ghz@1.44v Asus M4A89GTD PRO MSI GTX460 Hawk 910/1820/1950 2x2GB G.Skill Trident ddr3 1600 
Hard DriveOptical DriveOSPower
WD Blue 500GB LG Windows 7 Ultimate X64 Corsair VX550 
Case
Antec 902 V3 Black 
  hide details  
Reply
post #6 of 21
Quote:
Originally Posted by makuab View Post
FSB: 200Mhz
Multiplier: 19
Core speed: 3.8Ghz
Vcore: 1.424v

Temps: 54-57C load


45C or so while gaming, is this okay?

You should not need that much voltage for such a mild overclock. I suggest you drop the voltage back to stock (1.3V) and leave the overclock as it is... Give it a try and see if it will make it to OS at 3.8GHz with stock volts, chances are it will; and if it can't give it just a slight bump in voltages. The kind of voltages you're pushing to the chip are more like for 4GHz + speeds.

Quote:
Originally Posted by full_force1986 View Post
Be very careful oc'ing on that board as it is a MSI 4+1 with no vrm cooling. I would put everything back to stock before something goes pop and someone like xd_1771 can clarify if you should oc on that board.
+ 1 to what force1986 said.

Your motherboard is not designed for overclocking. That being said, it doesn't mean that you can't overclock with it... It just means that you're a bit limited when it comes to delivering voltage to the CPU in a safe fashion. If you look at motherboards designed for overclocking you'll notice that they have heatsinks over the power phases that manage the power supplied to the CPU. Now take a look at your board and you'll see that on it, the MOSFETs are bare.


This means that even though you can overvolt with the board, your risk of blowing one of them FETs up while doing it are much higher than if you had a board with heatsinks over them.

I say bring the voltage back down to something like 1.300V and see if you can get to 3.8 with that. I realize that not all chips are created equal and that some will want more voltage than others to get to a particular clock speed, but as a point of reference; my 955BE will do 4GHz with 1.360V and 3.8GHz with stock voltages without a problem.

Give the lower voltages a try; you may be surprised.

Daily Driver
(21 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom II X6 1090T Gigabyte GA-890FXA-UD5 XFX HD5670 1GB Gigabyte HD6570 1GB DDR3 
RAMHard DriveHard DriveHard Drive
Microcenter Value RAM OCZ Vertex 2 Maxtor STM3200820AS Seagate ST316002 3AS 
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST Thermalright Venomous X Black Sanyo Denki - San Ace 9SG1212P1G01 120mm x 38mm... Win 7 Ultimate x64 
MonitorMonitorKeyboardPower
Dell U2311H Dell E193FP Dell OEM keyboard Corsair TX850V2 
CaseMouseMouse PadAudio
CM 690 II Advanced Razer Death Adder Black Edition 3.5G Steelseries QKC  On board Realtek HD audio 
Audio
Dell OEM 5.1 speaker system 
  hide details  
Reply
Daily Driver
(21 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom II X6 1090T Gigabyte GA-890FXA-UD5 XFX HD5670 1GB Gigabyte HD6570 1GB DDR3 
RAMHard DriveHard DriveHard Drive
Microcenter Value RAM OCZ Vertex 2 Maxtor STM3200820AS Seagate ST316002 3AS 
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST Thermalright Venomous X Black Sanyo Denki - San Ace 9SG1212P1G01 120mm x 38mm... Win 7 Ultimate x64 
MonitorMonitorKeyboardPower
Dell U2311H Dell E193FP Dell OEM keyboard Corsair TX850V2 
CaseMouseMouse PadAudio
CM 690 II Advanced Razer Death Adder Black Edition 3.5G Steelseries QKC  On board Realtek HD audio 
Audio
Dell OEM 5.1 speaker system 
  hide details  
Reply
post #7 of 21
Thread Starter 
Quote:
Originally Posted by xXSebaSXx View Post
You should not need that much voltage for such a mild overclock. I suggest you drop the voltage back to stock (1.3V) and leave the overclock as it is... Give it a try and see if it will make it to OS at 3.8GHz with stock volts, chances are it will; and if it can't give it just a slight bump in voltages. The kind of voltages you're pushing to the chip are more like for 4GHz + speeds.



+ 1 to what force1986 said.

Your motherboard is not designed for overclocking. That being said, it doesn't mean that you can't overclock with it... It just means that you're a bit limited when it comes to delivering voltage to the CPU in a safe fashion. If you look at motherboards designed for overclocking you'll notice that they have heatsinks over the power phases that manage the power supplied to the CPU. Now take a look at your board and you'll see that on it, the MOSFETs are bare.


This means that even though you can overvolt with the board, your risk of blowing one of them FETs up while doing it are much higher than if you had a board with heatsinks over them.

I say bring the voltage back down to something like 1.300V and see if you can get to 3.8 with that. I realize that not all chips are created equal and that some will want more voltage than others to get to a particular clock speed, but as a point of reference; my 955BE will do 4GHz with 1.360V and 3.8GHz with stock voltages without a problem.

Give the lower voltages a try; you may be surprised.

Is there more to change besides voltage? My motherboard's stock voltage is 1.400v...
post #8 of 21
Quote:
Originally Posted by makuab View Post
Is there more to change besides voltage? My motherboard's stock voltage is 1.400v...
I don't quite understand what you mean "Is there more to change besides voltage?"

There are tons of things to adjust when overclocking:
- FSB
- Multiplier
- CPU NB Speed
- HT Link Speed
- VCOre
- CPU NB Voltage
- RAM Speed
- RAM Timings
- RAM Voltage

As far as the stock voltage being 1.400V that is incorrect; the stock voltage on a 955BE is 1.300V and they can run at stock speeds of 3200 with less than that.

It would be very helpful if you downloaded/installed CPUz and HWMonitor and posted screen capture of your desktop with HWMonitor and 2 instances of CPUz running (one in the Main tab and the other one in the memory tab); and if you could please also add a screen capture that shows HWMonitor when the CPU is stress tested (Prime95) so we can see normal and load temperatures.
Daily Driver
(21 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom II X6 1090T Gigabyte GA-890FXA-UD5 XFX HD5670 1GB Gigabyte HD6570 1GB DDR3 
RAMHard DriveHard DriveHard Drive
Microcenter Value RAM OCZ Vertex 2 Maxtor STM3200820AS Seagate ST316002 3AS 
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST Thermalright Venomous X Black Sanyo Denki - San Ace 9SG1212P1G01 120mm x 38mm... Win 7 Ultimate x64 
MonitorMonitorKeyboardPower
Dell U2311H Dell E193FP Dell OEM keyboard Corsair TX850V2 
CaseMouseMouse PadAudio
CM 690 II Advanced Razer Death Adder Black Edition 3.5G Steelseries QKC  On board Realtek HD audio 
Audio
Dell OEM 5.1 speaker system 
  hide details  
Reply
Daily Driver
(21 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom II X6 1090T Gigabyte GA-890FXA-UD5 XFX HD5670 1GB Gigabyte HD6570 1GB DDR3 
RAMHard DriveHard DriveHard Drive
Microcenter Value RAM OCZ Vertex 2 Maxtor STM3200820AS Seagate ST316002 3AS 
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST Thermalright Venomous X Black Sanyo Denki - San Ace 9SG1212P1G01 120mm x 38mm... Win 7 Ultimate x64 
MonitorMonitorKeyboardPower
Dell U2311H Dell E193FP Dell OEM keyboard Corsair TX850V2 
CaseMouseMouse PadAudio
CM 690 II Advanced Razer Death Adder Black Edition 3.5G Steelseries QKC  On board Realtek HD audio 
Audio
Dell OEM 5.1 speaker system 
  hide details  
Reply
post #9 of 21
Thread Starter 
Quote:
Originally Posted by xXSebaSXx View Post
I don't quite understand what you mean "Is there more to change besides voltage?"

There are tons of things to adjust when overclocking:
- FSB
- Multiplier
- CPU NB Speed
- HT Link Speed
- VCOre
- CPU NB Voltage
- RAM Speed
- RAM Timings
- RAM Voltage

As far as the stock voltage being 1.400V that is incorrect; the stock voltage on a 955BE is 1.300V and they can run at stock speeds of 3200 with less than that.

It would be very helpful if you downloaded/installed CPUz and HWMonitor and posted screen capture of your desktop with HWMonitor and 2 instances of CPUz running (one in the Main tab and the other one in the memory tab); and if you could please also add a screen capture that shows HWMonitor when the CPU is stress tested (Prime95) so we can see normal and load temperatures.
the AUTO setting on my motherboard sets it to 1.4v


post #10 of 21
I would suggest this:

Leave the VCore (CPU Volts) at 1.300V and see how far you can get the overclock with that voltage. Not all chips are equal, but my 955BE can easily do 3.6GHz on stock voltage.
Once you find the speed where the stock voltage does not work anymore, bump that voltage to the next level up and repeat the process. All of this while stress testing for stability and temperatures through every step.
Overclocking is not sprint; it's more like a marathon... Finding the optimal settings takes lots of time and testing.

A couple of things to remember:
- On Deneb type CPUs; HTLink is better kept at or around 2000MHz.
- CPU NB needs to go up as CPU speeds go up. There isn't an exact formula to figure out how much it does need to go up, but the one I use is this:
CPU-NB Frequency +/- 200 = (CPU-Frequency * 2 ) / 3.15
So for a 3.6GHz overclock you would have:
CPU NB +/- 200 = (3600 * 2)/3.15
CPU NB +/- 200 = 7200/3.15
CPU NB +/- 200 = 2286 --> If you do the + side you get 2486, if you do the - side you are back at 2000. I would go for the + side.
Edited by xXSebaSXx - 6/23/11 at 11:24am
Daily Driver
(21 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom II X6 1090T Gigabyte GA-890FXA-UD5 XFX HD5670 1GB Gigabyte HD6570 1GB DDR3 
RAMHard DriveHard DriveHard Drive
Microcenter Value RAM OCZ Vertex 2 Maxtor STM3200820AS Seagate ST316002 3AS 
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST Thermalright Venomous X Black Sanyo Denki - San Ace 9SG1212P1G01 120mm x 38mm... Win 7 Ultimate x64 
MonitorMonitorKeyboardPower
Dell U2311H Dell E193FP Dell OEM keyboard Corsair TX850V2 
CaseMouseMouse PadAudio
CM 690 II Advanced Razer Death Adder Black Edition 3.5G Steelseries QKC  On board Realtek HD audio 
Audio
Dell OEM 5.1 speaker system 
  hide details  
Reply
Daily Driver
(21 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom II X6 1090T Gigabyte GA-890FXA-UD5 XFX HD5670 1GB Gigabyte HD6570 1GB DDR3 
RAMHard DriveHard DriveHard Drive
Microcenter Value RAM OCZ Vertex 2 Maxtor STM3200820AS Seagate ST316002 3AS 
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST Thermalright Venomous X Black Sanyo Denki - San Ace 9SG1212P1G01 120mm x 38mm... Win 7 Ultimate x64 
MonitorMonitorKeyboardPower
Dell U2311H Dell E193FP Dell OEM keyboard Corsair TX850V2 
CaseMouseMouse PadAudio
CM 690 II Advanced Razer Death Adder Black Edition 3.5G Steelseries QKC  On board Realtek HD audio 
Audio
Dell OEM 5.1 speaker system 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › AMD Phenom II 955 BE Overclocking