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1055T stable oc, but want more

post #1 of 13
Thread Starter 
Hello Overclock.net

As it stands now, I finally got my OC stable at @3,5 Ghz, but I want to put more out of my CPU.
I have under clocked my ram to 800 Mhz, instead of 1066 Mhz. Everytime I change it to 1066, I can't boot up and my OC have failed.
Other than that I wish or hope I can end up touching 3,8GHZ with my 1055T, but doesn't know which volt I change to reach it?

If it's possible can you guys help me with the following expressions and what they do?

1. VDDNB Over Voltage
2. Loadline Calibration
3. Chipset Over Voltage

Here is some pictures:




My system is totally stable for now, running prime 12+ hours without crashes. What should I change to get 3,7 or 3,8 GhZ?

Hope u guys can help me, it would be appreciated.

//
HallengreeN
post #2 of 13
Have a look at my sig for what you are aiming for. VDDNB is Cpu/NB voltage as far as I am aware, which is the voltage for the memory controller on the CPU. LLC combats vDroop [http://www.masterslair.com/364/vdroo...p-really-bad/]. I have mine set to high, as without it I couldn't achieve higher stable clocks. Chipset over voltage would be the voltage of the northbridge, don't worry about that one.
The two main voltages you will be concerned about when overclocking are CPU voltage and CPU/NB voltage.

EDIT: A tip for Phenoms is to leave the HT Link speed at or below 2000Mhz, it sees also no performance increase and often causes instabilities, especially when you go for higher clocks.
With your RAM, leave the voltage at stock and then adjust the timings from there. With my sig, I probably could have adjusted my RAM further, but it is a fiddly process and I didn't have enough time on my weekend off. If you want CAS 7, but need more voltage, raise the voltage from there, but don't have it high at the start.
Edited by Mr. Moon - 11/3/11 at 1:32pm
    
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1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
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post #3 of 13
Well
the VDDNB and Chipset overvoltages are how you set those respective voltages higher than the maximum values specified by the chip manufacturer. both don't need to be adjusted.
LLC or Line Load Calibration is a feature in the VRM (CPU power supply) which is designed to counteract the drop in voltage that results from an increase in load. LLC is responsible for the increase in voltage seen when the CPU is under load. This should be set to about 70.
I have found with that BIOS and others like it that setting the mem frequency to auto works best. Because AMD Fusion allows for a decimal multiplier on the memory clock If set on Auto it will keep your ram at rated speed regardless of reference clock.
to get to 3.8 you should increase your CPU overvolt to 1.425v and then increase your reference clock to 272Mhz.
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Sandy Thunder
(18 items)
 
QuickSilver X1
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-3930k C1 4.6GHz @1.344v Sabertooth X79 2x EVGA GTX 560 Ti SC SLI 900/2106 Dominator 1866 16GB 9-10-9-27 
Hard DriveHard DriveCoolingOS
Crucial M4 64GB 'Cuda 320GB XSPC Rasa 750 RX240 push/pull + Alphacool UT60 ... Win 7 Pro x64 
MonitorMonitorMonitorKeyboard
Asus VE198D 19" Samsung 920NW 19" Samsung 906BW 19" Logitech G510s 
PowerCaseMouseMouse Pad
Corsair HX850M Carbide 400R Cyborg M.M.O. 7 Corsair MM200 
AudioOther
Bose Music Monitor Nuforce Icon HDP 
CPUMotherboardGraphicsRAM
Phenom II x6 1090T BE Sabertooth 990FX Radeon HD 5770 1GB Corsair Veangence Blue 
Hard DriveOptical DriveCoolingOS
WD Caviar Black 1TB  Lite ON 16x DVD-R/RW ThermalRight Silver Arrow Windows 7 Professional 64 bit 
MonitorKeyboardPowerCase
Syncmaster 921BW 19" & Syncmaster 965 19" and S... Apple aluminum wired keyboard Corsair TX650 Silverstone TJ05 with window and thermal contro... 
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post #4 of 13
Thread Starter 
Hello again.

Thanks for all the information, that really helped me out here. Now I'm OC'in my pc with following:

I changed to ram settings to auto.
LLC did I change to 70.95%
Chipset and VDDNB is on auto.
Cpu volt at: 1.425 made my system crash booting to windows (very fast blue screen)
Cpu volt at: 1.450/1.475 made my system freeze at booting windows. (never get to see the flag)

Should I adjust some of the other volts? Or is it just the Cpu that needs more power?

Thanks again.
Edited by Hallengreen - 11/3/11 at 2:12pm
post #5 of 13
Thread Starter 
Just tried following:

Freq: 265
Cpu Overvoltage: 1,425.

My system booted into Windows 7, but got bsod after seeing the desktop. The bsod was MEMORY_MANAGEMENT. Is this because my ram needs to be under clocked?

Update:
Changing the memclock to: 400 Mhz
Gets me the same bsod.
Edited by Hallengreen - 11/3/11 at 2:23pm
post #6 of 13
Overclock each part of the system separately (set cpu and nb back to or below stock while testing RAM). Same goes for any other part of the system. Once each part is stable, combine them and test.
    
CPUMotherboardGraphicsRAM
1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
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CPUMotherboardGraphicsRAM
1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
Hard DriveCoolingOSMonitor
1.5TB Samsung + 2x 1TB WD Caviar Blue Hyper 212+ Windows 7 Professional 64-bit 21.5" Samsung 1920x1080 
KeyboardPowerCaseMouse
Razer Lycosa Corsair HX650 Thermaltake V3 Black Edition Razer Deathadder 
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post #7 of 13
Thread Starter 
Well now I have tried a lot of different stuff.

I kept keeping memory_management bsod all the time, I decided to set the timings and volt on it

Now it runs:
5-5-5-18 at 2.1V

The memory_management stopped after that.

I upped my freq to 265 to get 3,7GhZ.
Changed my volt on the CPU Overvoltage to 1,45/1,475.
Didn't touch VDDNB Over Voltage, HT Over Voltage or Chipset Over Voltate.

OCCT or Prime95 couldn't even run 4 seconds, no bsod or something. The program just tells me that there is error's.
How can this be?

I tried VDDNB to 1.35
HT Over to 1.3

It still happened. I'm a bit lost now, hope u guys can set some light over this situation.
post #8 of 13
Thread Starter 
Hello again.

Well I have been working on my OC for 1 day now, I have finally reached a point where my pc is not bsod'in. And thats great!

But now...
My pc underclocks itself while stressing it?



Why does it do that?! :O

Hope some1 can help?!
post #9 of 13
Your board is underclocking so you dont blow your vrms.
You have no heatsinks on them so they will pop.
Edited by konspiracy - 11/4/11 at 10:06am
post #10 of 13
So what are you telling me? Do I need more cooling on it?
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