Mine is very unstable at 5GHZ to, tried at 1.4Volt but it crashes after 1-2 minutes of prime. Im guessing it needs like 1.43ish to be stable at that speed

It runs like a dream 4.875Ghz @1.368V and scores 11928 in the physics thingy on 3dmark 11

 

Is it ok to run high voltages while the temps are still fine? or is there still the risk to fry the chip?

 

nah, ow temps help but the individual transistors wll still get fried over time if the voltages are really high. Just guessing really.

 

So i just managed to run prime and 4.8Ghz stable for 8 hours stressing.
I use 1.395vcore for it, i can still test it at 1.39v, but it crashed at 1.385v

BCLK: 120
Multiplier: 40
CPU strap: 125
Memory is set to 1600Mhz with 9-9-9-24
Memory volt set to 1,5v
Vcore: 1.395v
VTT CPU Voltage: 1.2v
Second VTTCPU: Auto
CPUVCCSA Voltage: Auto
DRAM Voltage on both Channels: 1.5
CPU PLL Voltage: 1.81250
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

DIGI+ Power Control Options
CPU Load-Line Calibration: High
CPU Current Capability: 130% < THIS FINE?
CPU Voltage Frequency: Auto
CPU Fixed Frequency: 300kHz
VRM Over Temperature Protection: Auto
CPU Power Duty Control: T.Probe
Vcore MOS volt. Control: Auto
CPU Power Phase Control: Auto
CPU Vcore Bootup Voltage: Auto



Good OC?

 

yes nice. I am very new to the 3820 but your voltages seems a tad high.

Mine is stable at 1.25bclkx39 4.8750GHz with 1.370vcore

RAM is clocked at 2000MHz 9-10-9-27 @1.65 Volts

I got 4 rammodules installed, you got 8?

 

Ive got 4 modules

But your OC is very nice!

i haven't really touched the VTT , VCCSA and PLL voltages yet
could you share some of those settings u use with me?

 

they are on auto, spectrums are disabled.

I technically havent prime95ed it for more than half an hour but it seemed stable and havent crashed yet so I proclaim it stable.

How do I take a snapshot of my screen?

 

Look for the printscreen button on your keyboard. Its usually on the right of your F keys

 

Super stable at 4.75@ 125BLCK x 38 with 3.60VCore...However, if I bump up the BLCK just 1 or 2 notches to 125 or 126, it fails or bluescreens IBT. Regardless of VCore increase. I think it probably has something to do with the memory dividers or possible the loadline/max juice settings. I'll have to read up on these a bit more...

 

Quote:

Originally Posted by Equinoxe

Look for the printscreen button on your keyboard. Its usually on the right of your F keys

yes tried that, nothing happens.

 

After prntscrn, you have to open paint & paste it in, then save it.

 

aaaah thanks

hwinfo reports my ram as 800mhz while bios and CPUz says its 1000Mhz, odd