hi , im new here and also new doing overclocks...
after googling for some days , reading forums , guides , youtube movies etc, i've decided to take my cpu E2220 from his original speed to (my goal) 3.2mhz with original fan , just 2x 120m fans in the case box , 1 blowing in and the other out...
after all my research i used 1st the "OC Tuner" software that came with the board cd drivers.
1st attemp - (as a newby i am) i made the calcs: if it works 12x 200mhz = 2400mhz... i change to 12x 266mhz = 3200mhz... result= crash
2nd attemp - i aimed to 3000mhz (12x 250mhz)... result it was stable with me doing nothing on it just OCTuner , CPUZ , and CORETEMP on, but when i tried to play f.e.a.r. 2 it crashed...
3rd (last) attemp - 2900mhz (12x 242mhz)... this time i got stable (at least i think i did). results of this i screended:
after 1hour doing nothing on it , just the control software on:
after 1 hour pushing it (maybe not the correct way...):
after that it was 4am i went to bed , but i let it on to see wat happens, and he was ok this morning with cpu temps around 20\22ºC
my question here is: can u help me trying to get my goal (3200mhz)?
P.S. - i saw a youtube video where they say the vcore voltage with this Mboard can not be changed... can someone confirm this too?
the cpu core voltage (vcore) is usually with the fsb settings. but since you have a g31 based mobo, target mostly at budget/business builds, i highly doubt you can change the vcore. firstly, set the memory divider to 1:1 so that the ram will run at the same frequency as the fsb. since you may have gotten the cpu stable at 242mhz, try at 233mhz and move upwards and test every overclock with prime95 (cpu stressing utility). continue like that until it becomes unstable, then just move back to your last stable oc. hope i didnt confuse...
you could start at 242, but usually a system seems stable but once you stress it, it becomes unstable. run prime95 for about 30mins or more using the large ftt(?) torture test. some use the small ftt test, but for me the large ftt shows errors faster. the memory divider should be with the cpu settings, if your board supports it. it may already run at 1:1 by default, download cpu-z and see if the memory runs at ddr2-484 (with the 242 fsb). if it does, the memory divider is correct.
well if i were you, i'd get a new mobo. a p35 or p45 based mobo would be best. asrock makes budget boards so the quality is kinda low, that'll explain the drop in fsb that you see in cpu-z. grabbing an 'kinda outdated' p35 based asus or gigabyte board will be the best (price, performance, features).
** ok well, while i was busy typing this, i saw your windows arnt english. so im guessing you dont live in the usa.
just use the list as a reference. these mobos are all very popular and very reliable. you could try a different brand like ecs, asrock (again), biostar, msi and dfi. ive heard good things about biostar's tforce range of mobos..but try and stay with a good name brand.