Originally posted by: Fenixgoon
any good tips for OCing on this board?
E4300, 2gig dual channel SuperTalent DDR2 667, ASRock 4core dual VSTA (obviously). I'm running at 2.25ghz stable setting the RAM at DDR2 533, stock voltage, locked PCI-E/PCI buses. I'd like to hit 2.7-3.0ghz if possible.
Thanks!
This guide with some volt mods might help you.
http://forums.vr-zone.com/show...ad.php?t=93127&page=38
Quote from Jimmor
Not all setups are equal, so it's an unfortunate fact that not everybody will achieve 320 plus overclocks nomatter what mods they do. However, maybe it's just that you haven't yet found your mobo's optimum bios settings?
So why don't you post your current bios settings, just in case someone elses experience can maybe help spot any poor choices you may have selected ??
And just for interest, here are some bios settings that work ok for my E4400/4coredual-vsta/7800gs AGP setup operating at 3.2GHz. Although for my particular setup, stable 3.2GHz required Vagp (NB volts) be increased to around 1.95, and Vcore increased to 1.4v. Which however also required a small forced air cooled heatsink be fixed to the now extremely hot Vagp supply MOSFET.
Motherboard = 4CoreDual-VSTA
CPU Type = Core 2 E4400
Memory = 2x1Gb, Geil PC2-6400 DDR2 Ultra 4-4-4-12.
Bios version 1.80
Bios Settings:-
CPU:
Overclock Mode - CPU,PCI-E, Async.
CPU Freq. - 320
PCI-E Freq. - 119
PCI Freq. - 33.33
Spread Spectrum - Auto
Boot Failure - Enabled
Max CPUID Val. - Disabled
CPU Thermal Thr. - Enabled
No-Execute Memory. - Disabled
Intel Speedstep - Disabled
Chipset:
Dram Freq. - 266
Flexib.- Disabled
Cas Latency - 3
Interleave - 4-Way
Precharge - 3
Tras - 10
Trcd - 3
Bus Select.- Dual
Command Rate - 1T
DRAM Voltage - High
AGP Voltage - High
Primary Gra. Adapt. - AGP
AGP Fast Write - Enabled
AGP Aperture Size - 128Mb
V-Link - fast
PCI delay Transaction - Disabled
IDE Drive Strength - Highest
PCI-E Downstream Pipeline - Auto
Onboard Sound - Auto
Everything else at original defaults, other than whatever you want to set for EIDE, Floppy, USB, etc !
Also, the following settings can help make your memory overclocks a bit more stable:-
Advanced Memory Config.
CLKBUF DDRA group delay - 14x50ps
CLKBUF DDRB group delay - 14x50ps
CLKBUF FB_OUTA delay - 14x50ps
CLKBUF FB_OUTB delay - 14x50ps
CLKBUF DDRA Drv - 1x
CLKBUF DDRB Drv - 1x
CLKBUF FB_OUTA Drv - 1x
CLKBUF FB_OUTB Drv - 1x
EDIT,
Of course if you are still using original Intel supplied heatsink, then max stable overclocks are going to be limited ---> especially when using "orthos" for stability testing?
At 3.2Ghz with Intel heatsink, and monitoring cpu junction temps with TAT, temps quickly rose into 70's and orthos tests would typically fail within first minute. Using a Arctic Freezer 7 pro, temps qhickly rose to 60 and then slowly increased throughout testing, where this time orthos tests would typically run 5-10 minutes before failing. Now using Big Typ 120 VX (silent 1300rpm setting), temps never go above mid 50's and orthos tests don't fail anymore !