OCin' AMD 2600+ 333FSB
I am running a Athlon XP 2600+ 333FSB @ 2.305Ghz 400FSB (11.5x200). My core is at 1.775 and my DDR volt is at 2.8 100% Stable. I am able to run at 2.4Ghz but my Prime95 test always fails. I'm using a Asus A7N8X Deluxe version 2.0 w/ latest BIOS. I was wondering if they is anyway to up the DDR voltage 2.8 is the highest it'll go... Or is there anyway to gain better stability at 2.4ghz. Cooling is a Exos mem timings are 2-2-2-5....
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if 12X200 isn't stable at 1.775 - then up the vcore.
if you mean 11.5X209 isn't stable then do a vdd mod.
Drop your multi 2 steps so that you know that the cpu isnt the limit.
Relax the timings to 11,3,3 and cas 2,5 and use as much memory voltage as the board allow.
Start at 205 fsb and test with Godmemory or another memorytester. If it passes, then go up 3 or 4 fsb and do the same tests again until you have reached the limit. Back off the fsb 2 steps or to the last stable fsb.
Make a note on hwhat your highest fsb is. Also very important, use as much chipset voltage as you can.
Then lets do the opposite.
Drop your fsb to 166 with the same timings and voltages. (same voltages can mean a proper burn in of the memory sticks which is good)
Go up on your multi to 12,5 and start go up on the fsb a few steps at a time.
You can go up to a mhz where you know it was stable before right away so that saves some time. Dont be afraid of using core voltage up to around 1.9 volts, they can take that volts for years.Run Prime as a tester.
When you have reached the cpu limit, bring out the calculator and see if you can find a sweetspot mix between multi and fsb so that it comes close to both max fsb and max mhz. Let say that you have found out that the max mhz your cpu can do is 2.5 ghz and the max fsb your memory can do is 215. 215X11,5 is 2472 mhz so either you have to go up to 12 on the multi or stay as it is. Personally, i would stay at 11.5 since memory speed and fsb is much faster than multi on the cpu and a loss of 30 mhz isnt noticeable.
Great, then we know the cpu does 2.5 gigs! Not bad, but Amd`s main advantage is memory timings and with 11,3,3 cas 2.5 you won`t get a black belt in memory scoring on Sisoft Sandra.
So start with cas and set it to cas 2 and run a memory tester. Passes? Lets get on to the one before cas and set it to 2. Passes? Change the one before that to 2. If you can have timings at 11,2,2 cas 2, you have a winner, i promise. That will get you well above 3000/3000 in Sandra and is a very respectable memory bandwidth. If any of those timing changes fails, drop to 200 fsb and see if it passes. If it does, then run at 200 fsb with the best timings and run sandra memory burn in, loop it for several days at max memopry voltage. That way, the memory sticks will get a proper burn in and i wouldn`t be surprised if you can use 215 fsb at the best timings after that. When you have reached this far, then lets talk about voltage mods on your board.
Good luck and don`t be afraid to ask for help buddy!
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