Overclock.net › Forums › AMD › AMD CPUs › 955 stuck at 4.0Ghz
New Posts  All Forums:Forum Nav:

955 stuck at 4.0Ghz

post #1 of 14
Thread Starter 
Hi everybody,

I'm a little stuck on my overclock, and wondering where to go from here. Here's what I've got:

CPU: 4.0Ghz 20x200 @1.44v
RAM: 1600Mhz 6-8-6-20-24 @1.8v
NB: 2600Mhz @1.3v (CPU-NB)
HT: 1800Mhz
NB: 1.3v

My load temps after running an hour of OCCT are about 52c depending on the ambient temp of the air in my room.

The going from here is definitely getting tough, maybe you guys can help me get going .

I can't loosen the RAM timings any further or the system won't even post. Upping the NB to 2800Mhz fails OCCT within 15 seconds (even with up to 1.55v on the CPU-NB). The I tried taking the CPU up to 4.1Ghz with anything from 1.44v all the way to 1.55+v and it doesn't like that one bit--hard crashes and BSODs.

Anything else that I should be looking at to eek out a little more performance out of either (A) my CPU, (B) my RAM, or (C) my NB? Should I mess with the HT link? What about other voltages like NB (non-cpu-nb) or CPU-VDDA?

As far as cooling goes, I'm a little unique as many might know. I have a CM 212+ under full oil submersion. My cooling is actually quite good--I keep the oil cool using a pump and a 2x120mm radiator.

Any help appreciated! As an OCer, it's hard to accept defeat! MUST-HAVE-MORE-POWER!
    
CPUMotherboardGraphicsRAM
FX 8120 ASUS M4A89GTD PRO/USB3 890GX 2 x Asus 5770 CuCore 2 x 2GB Kingston HyperX 1800Mhz 
Hard DriveCoolingOSMonitor
64 GB Kingston V-Series Err, 10 Gallons of Mineral Oil and a Automotive... Windows 7 x64 SP1 24" Asus LCD 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 600W Seasonic Aquarium with ~10 gallons of mineral oil Razer DeathAdder 
Mouse Pad
Razer Kabuto 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
FX 8120 ASUS M4A89GTD PRO/USB3 890GX 2 x Asus 5770 CuCore 2 x 2GB Kingston HyperX 1800Mhz 
Hard DriveCoolingOSMonitor
64 GB Kingston V-Series Err, 10 Gallons of Mineral Oil and a Automotive... Windows 7 x64 SP1 24" Asus LCD 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 600W Seasonic Aquarium with ~10 gallons of mineral oil Razer DeathAdder 
Mouse Pad
Razer Kabuto 
  hide details  
Reply
post #2 of 14
your temps are high enough as it is. you cannot go any higher.
just be happy that you are among the few of us that is in the 4 GHz club.
Dream PC
(17 items)
 
Surface Pro 3
(9 items)
 
 
CPUMotherboardGraphicsRAM
INTEL Core i7 6700K ASUS Maximus VIII Hero Z170 MSI Geforce GTX 980 Ti Gaming 6G G.SKILL Ripjaws 4 series 16GB DDR4 3000 
Hard DriveHard DriveCoolingOS
SAMSUNG SM951 NVMe 512GB SAMSUNG 850 EVO 1TB COOLER MASTER Nepton 280L MICROSOFT Windows 10 Pro x64 
MonitorMonitorKeyboardPower
BENQ XL2420TE DELL UltraSharp U2415 WASD V2 custom CORSAIR HX850i 
CaseMouseAudioOther
NZXT H440 white CORSAIR Vengeance M95 CREATIVE Sound Blaster Z CPU Delid 
Other
LED Lighting 
CPUMotherboardGraphicsRAM
Intel Core i5 4300U Microsoft Surface Intel HD Graphics 4400 8 GB DDR3L 
Hard DriveOSKeyboardMouse
256 GB SSD Windows 10 Pro x64 Surface Pro 4 Type Cover with Fingerprint ID Microsoft Arc Mouse Surface Edition 
  hide details  
Reply
Dream PC
(17 items)
 
Surface Pro 3
(9 items)
 
 
CPUMotherboardGraphicsRAM
INTEL Core i7 6700K ASUS Maximus VIII Hero Z170 MSI Geforce GTX 980 Ti Gaming 6G G.SKILL Ripjaws 4 series 16GB DDR4 3000 
Hard DriveHard DriveCoolingOS
SAMSUNG SM951 NVMe 512GB SAMSUNG 850 EVO 1TB COOLER MASTER Nepton 280L MICROSOFT Windows 10 Pro x64 
MonitorMonitorKeyboardPower
BENQ XL2420TE DELL UltraSharp U2415 WASD V2 custom CORSAIR HX850i 
CaseMouseAudioOther
NZXT H440 white CORSAIR Vengeance M95 CREATIVE Sound Blaster Z CPU Delid 
Other
LED Lighting 
CPUMotherboardGraphicsRAM
Intel Core i5 4300U Microsoft Surface Intel HD Graphics 4400 8 GB DDR3L 
Hard DriveOSKeyboardMouse
256 GB SSD Windows 10 Pro x64 Surface Pro 4 Type Cover with Fingerprint ID Microsoft Arc Mouse Surface Edition 
  hide details  
Reply
post #3 of 14
Thread Starter 
Quote:
Originally Posted by james8 View Post
your temps are high enough as it is. you cannot go any higher.
Yeah that's what I am afraid of.

Not to change topics, but I'm thinking of adding another radiator, or even buying a TEC water chiller (like for aquariums) to chill my oil to sub-ambient temps.
    
CPUMotherboardGraphicsRAM
FX 8120 ASUS M4A89GTD PRO/USB3 890GX 2 x Asus 5770 CuCore 2 x 2GB Kingston HyperX 1800Mhz 
Hard DriveCoolingOSMonitor
64 GB Kingston V-Series Err, 10 Gallons of Mineral Oil and a Automotive... Windows 7 x64 SP1 24" Asus LCD 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 600W Seasonic Aquarium with ~10 gallons of mineral oil Razer DeathAdder 
Mouse Pad
Razer Kabuto 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
FX 8120 ASUS M4A89GTD PRO/USB3 890GX 2 x Asus 5770 CuCore 2 x 2GB Kingston HyperX 1800Mhz 
Hard DriveCoolingOSMonitor
64 GB Kingston V-Series Err, 10 Gallons of Mineral Oil and a Automotive... Windows 7 x64 SP1 24" Asus LCD 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 600W Seasonic Aquarium with ~10 gallons of mineral oil Razer DeathAdder 
Mouse Pad
Razer Kabuto 
  hide details  
Reply
post #4 of 14
AMD Procs start to artifact past 55 C so you cant really overclock any more, plus you wouldnt see much of a benefit past 4 Ghz. Besides, in reality very few can make it to 4 Ghz.
post #5 of 14
Thread Starter 
Quote:
Originally Posted by Kevlo View Post
AMD Procs start to artifact past 55 C so you cant really overclock any more, plus you wouldnt see much of a benefit past 4 Ghz. Besides, in reality very few can make it to 4 Ghz.
Yeah, I'm happy I made it to 4.0Ghz. Back when I was running the same rig on air, I had problems getting to 3.8Ghz, and that was before I could even overclock the NB at all. This oil cooling set-up has been a gem.
    
CPUMotherboardGraphicsRAM
FX 8120 ASUS M4A89GTD PRO/USB3 890GX 2 x Asus 5770 CuCore 2 x 2GB Kingston HyperX 1800Mhz 
Hard DriveCoolingOSMonitor
64 GB Kingston V-Series Err, 10 Gallons of Mineral Oil and a Automotive... Windows 7 x64 SP1 24" Asus LCD 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 600W Seasonic Aquarium with ~10 gallons of mineral oil Razer DeathAdder 
Mouse Pad
Razer Kabuto 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
FX 8120 ASUS M4A89GTD PRO/USB3 890GX 2 x Asus 5770 CuCore 2 x 2GB Kingston HyperX 1800Mhz 
Hard DriveCoolingOSMonitor
64 GB Kingston V-Series Err, 10 Gallons of Mineral Oil and a Automotive... Windows 7 x64 SP1 24" Asus LCD 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 600W Seasonic Aquarium with ~10 gallons of mineral oil Razer DeathAdder 
Mouse Pad
Razer Kabuto 
  hide details  
Reply
post #6 of 14
I have the same processor and right now my overclock is 2800NB at 1.4v cpu/nb. 3.8Ghz at 1.45v. My memory timings are 7-7-7-24-33-1t at 1333 at stock voltage. My HT is 2000Mhz. I'm not totally sure about my memory but with this current OC at full load with a CM 212+ (just on the cpu with thermal paste) I get 56c at full load. I actually did push it 4.0Ghz and it was around 62c. Too warm for my blood so I was gonna wait till I got water cooling. But I think 4Ghz on this CPU is really good.

I was debating between 2600NB or 4.0Ghz but I was told that 200Mhz of NB gives more performance than 200Mhz CPU speed. I can't quiet exactly remember the math behind it, but I followed that advice and did that. Maybe its something to try out?
post #7 of 14
If you get a better cooler you can OC further.
The cooler your processor runs, the less volts it requires for the same stable OC.
    
CPUGraphicsGraphicsRAM
Intel i7 3630QM HD 7970M HD 7970M 2x4GB 1333MHz 
Hard DriveHard DriveHard DriveOptical Drive
Crucial M4 256GB mSata Seagate Momentus 750GB Western Digital Scorpio Blue 500GB DVD Burner 
OSMonitorMonitorKeyboard
Windows 7 64-Bit Ultimate 17.3" 1920x1080 Matte Screen Auria 27" 2560x1440 Back-lit Clevo Keyboard 
Power
330 Watt Power *BRICK*! 
  hide details  
Reply
    
CPUGraphicsGraphicsRAM
Intel i7 3630QM HD 7970M HD 7970M 2x4GB 1333MHz 
Hard DriveHard DriveHard DriveOptical Drive
Crucial M4 256GB mSata Seagate Momentus 750GB Western Digital Scorpio Blue 500GB DVD Burner 
OSMonitorMonitorKeyboard
Windows 7 64-Bit Ultimate 17.3" 1920x1080 Matte Screen Auria 27" 2560x1440 Back-lit Clevo Keyboard 
Power
330 Watt Power *BRICK*! 
  hide details  
Reply
post #8 of 14
Have you tried more fsb based clocking? Could also try dropping the nb speed a bit to see if that frees up any headroom for the cpu speed.
Poison
(13 items)
 
  
CPUMotherboardGraphicsRAM
3820 @ 4.7 Sabertooth x79 Powercolor 6870x2 G Skill 2133 8gb 
Hard DriveCoolingOSMonitor
Crucial m4 Noctua DH14 win7 64 ultimate HP 2511x 
KeyboardPowerMouseMouse Pad
microsoft Sidewinder Enermax Modu 87+ 900 Asus GX800 none 
Audio
Yamaha RX-V955, B&W bookshelves and Infinity PS-8 
  hide details  
Reply
Poison
(13 items)
 
  
CPUMotherboardGraphicsRAM
3820 @ 4.7 Sabertooth x79 Powercolor 6870x2 G Skill 2133 8gb 
Hard DriveCoolingOSMonitor
Crucial m4 Noctua DH14 win7 64 ultimate HP 2511x 
KeyboardPowerMouseMouse Pad
microsoft Sidewinder Enermax Modu 87+ 900 Asus GX800 none 
Audio
Yamaha RX-V955, B&W bookshelves and Infinity PS-8 
  hide details  
Reply
post #9 of 14
Quote:
Originally Posted by Kevlo View Post
AMD Procs start to artifact past 55 C so you cant really overclock any more, plus you wouldnt see much of a benefit past 4 Ghz. Besides, in reality very few can make it to 4 Ghz.
Artifacting is something that happens with GPUs...

If you're talking about errors, then it's past 62C that you have to watch out for.
 
Gateway LT2207h
(13 items)
 
 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 BE @ 3.9GHz Gigabyte GA-870A-UD3 MSI GTX 460 1GB @ 850/1700/2112 12GB DDR3 1600 8-8-8-21 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 64GB Samsung Spinpoint F3 1TB Asus 24x DVD burner Corsair H70 
OSMonitorKeyboardPower
Windows 7 64-bit Samsung P2370HD Logitech G15 Corsair TX750W 
CaseMouseAudioAudio
Antec 300 Illusion Logitech G500 ASUS Xonar DG Sony MDR-V6 
Audio
Altec Lansing VS4621 
CPUMotherboardGraphicsRAM
AMD Athlon II Neo K125 @ 1.7GHz Gateway JV01-NL Radeon HD 4225 2GB DDR3 800 6-6-6-15 
Hard DriveOSMonitorPower
Seagate Momentus XT 500GB Windows 7 HP 32-bit 10.1" LCD 6-cell Lithium Ion battery 
  hide details  
Reply
 
Gateway LT2207h
(13 items)
 
 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 BE @ 3.9GHz Gigabyte GA-870A-UD3 MSI GTX 460 1GB @ 850/1700/2112 12GB DDR3 1600 8-8-8-21 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 64GB Samsung Spinpoint F3 1TB Asus 24x DVD burner Corsair H70 
OSMonitorKeyboardPower
Windows 7 64-bit Samsung P2370HD Logitech G15 Corsair TX750W 
CaseMouseAudioAudio
Antec 300 Illusion Logitech G500 ASUS Xonar DG Sony MDR-V6 
Audio
Altec Lansing VS4621 
CPUMotherboardGraphicsRAM
AMD Athlon II Neo K125 @ 1.7GHz Gateway JV01-NL Radeon HD 4225 2GB DDR3 800 6-6-6-15 
Hard DriveOSMonitorPower
Seagate Momentus XT 500GB Windows 7 HP 32-bit 10.1" LCD 6-cell Lithium Ion battery 
  hide details  
Reply
post #10 of 14
Is that 52c core temps or socket tempp
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › 955 stuck at 4.0Ghz