The Official OC (OverClocking) Thread!

sam,
1.4v is not going to hurt your cpu.
Give it a try by all means but before you do that try loosening your memory timings to say 3/4/4/8. or 3/5/5/10

 

Mmm, it may be high time to loosen the memory timings:

(I can't find any locks for the DRAM speed other than: "Set DRAM frequency" and that only offers 266,333,400,466,533 etc.)

222mhz x11 RAM@2.7V, DRAM@400, Memory Timings now 1T: Unsuccessful (Reset at end of XP logo)
220mhz x11 RAM@2.7V, DRAM@400, Memory timings at 1T: Unsuccessful (BSOD at end of XP logo:
IRQL_NOT_LESS_OR_EQUIAL 0x0000000A 0xE15C3F7D, 0x00000001, 0x00000000, 0x8053DD13)
Revert back to 2T at 220x11 and it's fine.. so far.

 

thanks emachine, I have the CRT still out because there's nowhere to put it at the moment! If it's still on my desk I may as well use it! The monitor is the 24" in my signiature.

 

sam thats it.
set the dram frequency to DDR333.
Now up your cpu from 220 to say 222 and see how you go.

 

Right OK. What exactly is that doing, forcing the memory to run at 83% of the "bus" speed?

 

thats exactly right sam,your getting it now!!
If thats succesful change the memory back to 1T.

 

LOL good good! Funny, I've guided a few people on the basic principles of overclocking and never actually tried it myself. I missed out on how fascinating it is! Leaving timings at 2T (since that seemed to work better at a 400mhz setting) and trying 222x11 now seems to work OK with DRAM at 333mhz (so I assume that's technically 370mhz). I may try for 225mhz x11 later, but I need to go out in 25 minutes, and I'm going to Sandra this speed first just to make sure it's stable-ish. I appreciate a full test takes hours, but at this stage, I'm going to see what happens with a Sandra test. I stress tested the 220x11 @400, 2T 2.6V overclock for 17 hours folding, so I'm reasonably confident at least that one's stable.

 

sam,fantastic!!
374mhz to be exact.
Now you can see you have a bit of headroom before your memory gets back to DDR400.

P.S. Didn't take you long to update your sig!!!

 

LOL well... right. I'm now running at 225mhz x11 (I believe that's 2475mhz) with the settings as they were, 2T at 0.83x RAM (375mhz I think) at RAM voltage 2.7V (versus 2.6 stock) and CPU voltage 1.35V (stock). I'm not quite so confident about the stability of this one, as although it's working now, the first time I booted, I got a crash at the windows desktop, and when I pressed the reset button, an entirely light blue screen briefly appeared.

Update: I'm now running at 2475 on 1T timings, and so far so good (touch wood)

 

sam,
1st test:run super pi 1m iterations.
2nd test:run the cpu/memory sandra benches.
3rd test:run orthos(same as dual prime95 but easier).12 Hours stress test no errors and your stable.Here:
http://sp2004.fre3.com/beta/orthos_exe_20060420.cab

 

nearly forgot,don't be scared to take the cpu to 1.4v.

 

Duly noted, but I have this funny feeling it isn't a CPU restriction that's holding me back. I'll run those benches and report back on the results. Given the odd crash I had before, I'm going to run those tests for quite a while before I go any higher, like you say, 24 hours is a good stress test. At this particular point in time, is it better to have 1T or 2T memory timings?

 

sam i would go with 1T.

 

Well that overclock wasn't stable at all, it failed before I ran those benches. I'm now running at 223mhz x11 with 2T timings as they seem to run better.

 

Alright, I got 6627, 8525 and 9133. When trying to install I got the following:

With 9133 and 8525, doesnt match installed hardware.

With 6627, these are older than currently installed drivers.

I missed ALOT on those pages. lol I didn't see the modded INF. But, I got it for 8525 and installed. But still no OC'ing! Same sh*t different day, close the window, it defaults.

But, there is something different-upon startup Zone Alarm give me a prompt that "nwiz.exe" is trying to access privileged areas.

So, I do not click anything, just leave the prompt open and then run rthdribl. Note the temps and then allow the access by nwiz. Run rthdribl again and notice the temps are slightly higher when I allow nwiz.

Any other way to tell for sure if it is OC'ed?

 

You need to tell Zone alarm to allow the program, it will block it by default.

 

sam,what are your memory timings at?
Also can you give me a complete list of all the settings in your jumperless BIOS options.

 

Niobis,
run 3D mark03.Once with the card at stock then run it again when you "think" it's o/clocked.Compare your scores and see if there is a difference.

 

The memory timings are still stock at 3-3-3-8, DRAM forced at 333mhz, 2T command rate, 220mhz FSB, 2.7V memory, 1.35V core, 11x multiplier.

Good idea on niobis' situation by the way, I hadn't thought of that.

 

sam,They are the basic settings.
Here are a couple of screenshots of the DFI genie bios.
Do you have any of these options available in the ASUS bios?