Amd Phenom II 940 with Asus M4A79 Deluxe mb overclocking

I am just learning how to overclock my rig and would like anyones input on how to do it properly I have read many guides online and they all say to change different things in bios to different settings but most of them are so confusing I do not understand them, I have got it overclocked some using the cpu multiplier and cpu voltage and it seems stable but I would like to get more out of it if I could, any comments or suggestions would be greatly appreciated, thank you

My specs are Amd Phenom II 940 with Asus M4A79 Deluxe mb with a coolermaster v8 if you would like any other information on my rig please just let me know, thank you

I am not using the stock cooler, I have the CoolerMaster v8 heatsink/fan installed on it, it runs alot cooler then stock,

I have an idle temp of 23c and a full load temp with prime95 for 8 hours at 38c with everything set default in bios

with it overclocked using the cpu multiplier at 17.5x and the cpu volt at 1.42 I have it at 3.6GHz with the idle temp at 28c and the full load temp with prime95 at 46c, just thought that since my temps where stillgood I might be able to get a little more out of the cpu, thanks

the Ram is OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066

I tried the multiplier at 15x before and it dropped me back down to 3.0GHZ

^^^ for the post above. Remember that all computers are different even though u might have the same cpu doesnt mean hell get the same results. BUT, i think its worth a try.

^^^ for the post above. Remember that all computers are different even though u might have the same cpu doesnt mean hell get the same results. BUT, i think its worth a try.

Tagerh

set your fsb to like 100 or 150 something low like that. then turn your multiplier up as high as it goes. then slowly increase your fsb by 10, then restart and go into windows and do superpi and memtests stuff like that

i havn't overclocked a quadcore so there might be a few things that differ with that. but the above is the really basic way of overclocking.

once you start failing superpi, you can raise your volts on your cpu by the smallest amount at a time. up to whatever the safe limit is(do a google search on your cpu)

after each voltage increase, slowly increase your fsb until you find out how much the voltage increase helped. when you get to the point where it doesn't boost your fsb much or at all, then you stop. again don't pass your safe limit on the voltage.

also each time during all this that you get into windows to run superpi and memtest, you should also run prime95 torture test and see how hot your cpu and motherboard get during the test. and of course you'll want to find out how hot your cpu can safely get

my amd64 3000+ which is a really old cpu, gets up to 49C on full load overclocked from 1800Mhz to 2430Mhz which is a pretty decent overclock. at idle its only 32C

but i do have a really nice heatsink, zalman 100% copper. can't remember the model tho

it should go lower than 200, im betting there is a setting in your bios that has it locked to match your ram. once you undo that it should go lower. and i had no idea your multiplier goes all the way up to 35x lol i would try 18 or 17x at 200fsb if you can get your fsb lower. when you get it into windows do a sandra benchmark, and a 3dmark , as well as your stability tests i mentioned.

then try the opposite, high fsb and lower multiplier, and then check your 3dmark and sandra again. see which one gives the better performance(someone once told me some people like to have high fsb rather than high clock) so im not sure which is actually better. id start out with something like 260fsb x 8x .

The reason for 1066 ram is to turn it down to 800 and up the fsb til the ram hits 1066....its fine.

The reason for 1066 ram is to turn it down to 800 and up the fsb til the ram hits 1066....its fine.

beefdog

Thanks to everyones suggestions and alot of reading guides online I have my Phenom II 940 running at 3.72GHz and it seems to be pretty stable right now, I ran Prime95 for 2 hours and my temps where 31c idle and topped out at 46c under full load. I will run it for longer tonight and also run a few other test programs just to make sure before I try to go any higher

[QUOTE="beefdog"]

The reason for 1066 ram is to turn it down to 800 and up the fsb til the ram hits 1066....its fine.

machiavell8x8

The ram speed is controlled by the fsb, so is the ht link and northbridge speed. The higher the fsb, the higher the ram speed. His problem was the ram is only guranteed up to 1066. Ocz isnt great for overclocking ram. So he has to lower it because at 210 fsb the ram was running at 1100 mhz+. If it was crucial ballistix it would be fine (mine goes over 1100mhz). Easiest way to oc is by multiplier....but to get max you have to play with both....not really sure why everything goes up with the fsb being increased....guess there linked together.