Issues with E8500 and Ep45 ud3p Ocing

[wfarid]

Re: Issues with E8500 and Ep45 ud3p Ocing

Hit 4.2ghz at those setting prime stable (8hrs). Now testing Vcore: 1.4000; VTT 1.360; CPU Ref .931; PLL 1.57; MCH ref .841

Robust Graphics Booster.........................[ Auto     ]
CPU Clock Ratio.................................[ 8  x      ]
Fine CPU Clock Ratio............................[ + .5    ]
CPU Frequency 4.25GHz............................[ 500x 8.5  ]
 
******Clock Chip Control******
 
CPU Host Clock Control..........................[ Enabled  ]
CPU Host Frequency (Mhz)........................[ 500     ]
PCI Express Frequency (Mhz).....................[ 100      ]
C.I.A 2 [Disabled] 
 
 
******Advanced Clock Control******

CPU Clock Drive..........................[800mV]
PCI Express Clock Drive................[900mV]
CPU Clock Skew..........................[400ps]
MCH Clock Skew..........................[300ps]

******DRAM Performance Control******
 
Performance Enhance.............................[ Standard    ]
MCH Frequency Latch.........................[ 333   ]
System Memory Multipler.........................[ 2.00B    ]
Memory Frequency 1066............................[ 1000      ]
DRAM Timing Selectable..........................[ Manual   ]
 
CAS Latency Time................................[ 5        ]
tRCD............................................[ 5        ]
tRP.............................................[ 5        ]
tRAS............................................[ 15      ]
 
******Motherboard Voltage Control******
 
Load-Line Calibration...........................[ Enabled ]
CPU Vcore         [ 1.25 ]...................[ 1.40635v    ]
CPU Termination   [ 1.20    ]...................[ 1.38v   ]
CPU PLL           [ 1.50    ]...................[ 1.57v    ]
CPU Reference     [ 0.760   ]...................[ .944v  ]
 
MCH Core          [ 1.100   ]...................[ 1.360v    ]
MCH Reference     [ 0.760   ]...................[ .8545v   ]
MCH/DRAM Reference [ 0.900   ]...................[ 1.11v ]
ICH I/O           [ 1.500   ]...................[ auto   ]
ICH Core          [ 1.100   ]...................[ auto   ]

DRAM Voltage     [ 1.800v]...................[2.100v]
DRAM Termination [0.900v]...................[auto]
Channel A Reference [0.900v]................[auto]
Channel B Reference [0.900v]................[auto]

[Jsunn]

Re: Issues with E8500 and Ep45 ud3p Ocing

How is the testing going? I am trying to hit 4.0. It has been a struggle.

Can you also post the Template that you used for 4Ghz. I am using what you have for 4.2, but lowered the FSB to get 4, my voltages are what you are using for 4.2. My temp are sitting in the mid 40's now which are a little high for my tastes.

Thanks for the help.

-Jason

[wfarid]

Re: Issues with E8500 and Ep45 ud3p Ocing

well each chip is going to be different. What helped me the most was playing with the VTT and the reference voltages. I raised the CPU ref to around 69% of the VTT and lowered the mch ref one notch. That really seemed to help stabilize things. Read up LSD's article here on P45 overclocking. I was really struggling to hit 4 when I put everything on auto, its when I started playing with the refs that I got into a good stride.

I'm actually selling off my e8500 and I just bought a Q9550 from zipzoom. I've been doing a lot of video editing so I need more cores to make rendering/encoding a quicker job. I'll let you guys know how overclocking goes on that chip.

I also cut a 120mm blowhole on the top of my case (I had a 120 Aeroplex Evo grill from Aqua computers laying around) and it lowered my temps 10C! It was like having my side panel off. These old wavemaster cases are have horrible airflow (2 80mms in the front) and 1 80 exhaust so adding that helped a lot (I don't even have a fan on it yet!)