I have gigabyte EP-45DS4P
I upgraded from F4>F5 for more memory speed.
All goes good > oc to 3.8ghz using E8500 and kingston HyperX-800 (ram at 800 stock5-5-5-18)
F6 bios comes > clear all cmos > update bios >clear cmos to defult again > use EXACT same settings for OC
No BOOT> cmos corrupts and Dual bios kicks in to recover me >> no this is not the easter egg.....
After much trial and error I found changing MCH frequency latch from 400mhz (to match FSB speed) to 200mhz it will boot with OC settings > but once ram is pushed to its RATED speed of 1066 (at 2.2 rated voltage and with extra .2 volts for MCH) the system crashes.
I then proceed to add things like MCH clock skew etc etc > never have I looked past the first memory advanced timings as I left them all AUTO
SO..... I go to change ADVANCED TIMING CONTROL >> Channel A Timing SETTINGS > add +100ps clock skew.....
I go to Channel B Timing SETTINGS
All the timings had -2 this and -100ps that.
So either F6 bios defult comes with a BAD adjustment on the advanced timings OR LOAD optimised defults comes with the setting already entered that is WRONG!!
Why is Channel A set to auto but Channel B bank adjusted?
After resetting all settings to auto > 2.2v ram +.2 for MCH, 200mhz latch
6x cpu multiplyer and 400mhz FSB with 2.66c memory multiplyer memtest works great and system boots like a dream.
Can push ram to 1101Mhz (413 FSB) no troubles
using 450fsb Ram will ERROR *1200mhz for RAM
I am not willing to reflash to F4 > F5 >F6 to try and repoduce this > or use load optimised or load fail safe defults >> will someone else with the time try these and see if RAM advaced timing > channel B timing and Driving settings get changed?
I upgraded from F4>F5 for more memory speed.
All goes good > oc to 3.8ghz using E8500 and kingston HyperX-800 (ram at 800 stock5-5-5-18)
F6 bios comes > clear all cmos > update bios >clear cmos to defult again > use EXACT same settings for OC
No BOOT> cmos corrupts and Dual bios kicks in to recover me >> no this is not the easter egg.....
After much trial and error I found changing MCH frequency latch from 400mhz (to match FSB speed) to 200mhz it will boot with OC settings > but once ram is pushed to its RATED speed of 1066 (at 2.2 rated voltage and with extra .2 volts for MCH) the system crashes.
I then proceed to add things like MCH clock skew etc etc > never have I looked past the first memory advanced timings as I left them all AUTO
SO..... I go to change ADVANCED TIMING CONTROL >> Channel A Timing SETTINGS > add +100ps clock skew.....
I go to Channel B Timing SETTINGS
All the timings had -2 this and -100ps that.
So either F6 bios defult comes with a BAD adjustment on the advanced timings OR LOAD optimised defults comes with the setting already entered that is WRONG!!
Why is Channel A set to auto but Channel B bank adjusted?
After resetting all settings to auto > 2.2v ram +.2 for MCH, 200mhz latch
6x cpu multiplyer and 400mhz FSB with 2.66c memory multiplyer memtest works great and system boots like a dream.
Can push ram to 1101Mhz (413 FSB) no troubles
using 450fsb Ram will ERROR *1200mhz for RAM
I am not willing to reflash to F4 > F5 >F6 to try and repoduce this > or use load optimised or load fail safe defults >> will someone else with the time try these and see if RAM advaced timing > channel B timing and Driving settings get changed?
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