complete noob at this, cant O/C my computer

[rembrandt]

Hi

Ive been on loads of sites and been given loads of advice on how to over clock my computer but so far any attempt to over clock the cpu in the bios wont let it post so has any one any ideas that might help, I did have a Palit HD4870 1gb sonic dual edition gfx card in but I had the ATIkmdag display error and black squars flickering across the screen so its been RMA'd.Hoping they find something wrong with it

E6600, ASRock penryn1600sli-110db ,COOLER MASTER REAL POWER M700, XFX 8800GT alpha dog 670MHz , XION Solaris , OCZ 4x1gb DDR2 800hrz platinum, ARCTIC 7 cooler,Zalman ZM-NBF47 Northbridge Heatsink, seagate barracude 500gb sata2 32mb cache,windows Vista 32bit ultimate

Thanks Dave

 

[rembrandt]

well tried 20MHz over std with ram set at lowest 533Mhz wouldnt post, tried 40Mhz over std volts wouldnt post, tried a little volts not much put it upto 1.35v still nothing, ram voltage set at 2.2v/ 4.5.4.15, cpu/pcie set to asyn as per mobo manual, pcie set at 100Mhz , mobo supports untied O/Cing. north bridge set at 1.25v. I just get a message that it tried to boot several times and its gone into default settings mode and to press f2 to enter bios and check settings.

Dave