I'm aiming to get a stable 3.8-4.0 ghz overclock with my e8500 but I'm having trouble figuring out what voltages I should be using because.. obviously I'm doing something wrong, I keep getting "rounded to 5" errors in prime95.
I have the C0 stepping E8500, with 4 gb dual channel corsair 1066
with the new Gigabyte ep45-ud3r mobo
xigmatek cooler, and HD4870
I know there's tons of people asking these same questions but I've been looking and taking advice, and its still not working flawlessly..
Most of my voltage settings are on auto right now, and my cpu rarely goes over 40c as it is
Probably your CPU Vcore is too low. Set it to 1.4V in the bios. You may need less voltage, and you can always lower it later. Also try enabling "Load line Calibration". This will reduce the vdroop. I have the UD3P, and for me to get my e7200 stable at 3.8ghz, I also needed to set CPU Termination = 1.3V and MCH Core to 1.3V. Set your ram to the manufacturer specs voltage and timings. Leave the rest on auto. Make sure you have a good heatsink to keep it cool.
lol lets not turn this into a debate =p I just put this computer together recently
what would really help me is if someone knowledgable with my setup could do a 1 on 1 with me to help get my system running without any hitches.. still getting prime95 errors at like 3.6 ghz =/ so somethings wrong, but I'm brand new to this so I wouldn't know what to look for.
ok well I ran memtest for a few passes again, and I got no errors (after raising the voltage back up to 2.1) but I'm still getting prime95 errors at 400 fsb, is there some voltage setting I have wrong? mch core, ich I/O, ich core, CPU pll? I dont really understand any of those.. and I cant find much info regarding my specific components. =/
Prime95 just crashed again at 400x9 fsb(only 3.6ghz) and ram at 1066..I dont get it! and I still want to get 3.8-4.0ghz stable..I'm getting more and more weary now thinking that I'm gonna melt something or other messing with these voltages I know nothing about lol ><
I am also new to overclocking so I am not an authority on the subject. I think that when you OCing to start you should test your system to be stable at stock settings then OC the processor first then the ram if you want. If you try to fiddle with both at once you don't know which one is giving you the errors. For daily use I have mine at 4.16GHz Prime95 stopped after 14Hrs no errors. My BIOS setting just to give you some reference are Vcore 1.40625 (CPUZ says 1.368V) stock setting was 1.18V. FSB 1.35V stock setting was 1.1V, Memory is set to the stock setting of 1.7V(my memory is not OCed) Nforce spp is set to auto at 1.4V, and nforce MCP is set to auto at 1.5V I did read somewhere that you have to make sure your video cards are not also being overclocked by setting your PCIE bus speed. Mine was at 100 before OC so I set it at that. I was able to get the highest 3Dmark Vantage performance score for an E8500 (30245) I had it set to 4.6 GHz for that benchmark. Good luck!