Trying to get my 920 D0 over 200blck

[ghost recon88]

I can get 200x21 pretty easily, but then anything over 200blck becomes a real pain :| I'm running a 920 D0, UD4P (BIOS F7), and 3x2GB G.Skill Pi 1600.

I can enter Windows @ 210blck with the following voltages. However it's not very stable and won't complete a Super Pi run. Is it possible to overvolt things? Also all the screens and stuff go by very slow, and the hard drives take a while to load. I thought maybe the ICH voltage needed to be turned up? All the RAM timings and voltages are manually set.

Vcore: 1.4250v
QPI/VTT: 1.400v
CPU PLL: 1.880v

PCI-E: Auto
QPI PLL: Auto
IOH Core: 1.400v
ICH I/O: 1.580v
ICH Core: 1.32v

DRAM Voltage: 1.700v

RAM is running @ 2:6 divider, and the PCI-E frequency is locked @ 100.

I've also tried this config on a recommendation from a friend, however the system boots but there's no video.

Vcore: 1.400v
QPI/VTT: 1.38v
CPU PLL: 1.80v

PCI-E: Auto
QPI PLL: Auto
IOH Core: 1.300v
ICH I/O: Auto
ICH Core: Auto

DRAM Voltage: 1.65v

 

[Rick James]

Turn off turbo. I have everything but the vcore on auto. Vcore is 1.4v

 

[E4300]

Don't have a 920, but all past 45nm quads capable of +4.0GHz were stable at less than 1.4Vcore in BIOS. They only need major bump in VTT, VNB, and VPLL with +400MHz FSB.

I think you should adjust all settings to factory default values (manual mode), and slowly crank up Vcore along with FSB once you've discovered the maximum stable CPU speed at default VID. The nominal gain in core speed for the 45nm chips is 50MHz for each 20mV bump in Vcore. If you have to dial in more voltage to reach stability, then you need to tweak the other voltage parameters. Also experiment with the CPU and MCH clock skew if available.

At some point, you will reach the point of saturation where you will need a lot more Vcore to gain 20-30MHz CPU core speed.

Stick with 1:1 divider initially. I would refrain from bumping up VTT, VNB, and VPLL unless you're pushing high FSB speed. Slowly raise core speed and see how it interact with VTT, VNB, and VPLL.

The general rule of thumb is to discover a maximum stable CPU speed at VID. Adding more Vcore and BIOS tweaks will add another 300-400MHz with a conventional air-cooled rig.

 

[aigomorla]

Originally posted by: ghost recon88
I can get 200x21 pretty easily, but then anything over 200blck becomes a real pain :| I'm running a 920 D0, UD4P (BIOS F7), and 3x2GB G.Skill Pi 1600.

I can enter Windows @ 210blck with the following voltages. However it's not very stable and won't complete a Super Pi run. Is it possible to overvolt things? Also all the screens and stuff go by very slow, and the hard drives take a while to load. I thought maybe the ICH voltage needed to be turned up? All the RAM timings and voltages are manually set.

Vcore: 1.4250v
QPI/VTT: 1.400v
CPU PLL: 1.880v

PCI-E: Auto
QPI PLL: Auto
IOH Core: 1.400v
ICH I/O: 1.580v
ICH Core: 1.32v

DRAM Voltage: 1.700v

RAM is running @ 2:6 divider, and the PCI-E frequency is locked @ 100.

I've also tried this config on a recommendation from a friend, however the system boots but there's no video.

Vcore: 1.400v
QPI/VTT: 1.38v
CPU PLL: 1.80v

PCI-E: Auto
QPI PLL: Auto
IOH Core: 1.300v
ICH I/O: Auto
ICH Core: Auto

DRAM Voltage: 1.65v

LOL if the first settings didnt work, then why would you expect your friends settings to work?

Your friend basically gave you a lesser degree noobie version of what your original settings were.

maybe your chip and board combo has a wall over 200bclk. Overclocking is like a lottery, sometimes u win big, others your out sleeping with the dog.

 

[ghost recon88]

Thing is I know this chip can do 4.6GHz, I just can't get it on this board :disgust: