Conroe X6800 results, still testing - need input!

[Mr.Kakarot]

X6800 A4
P5W DH deluxe
Bios 0801 (can anyone recommend a better one)?
Memory Mushkin XP2 pc2 6400 (all set to auto) Should I set it somewhere for better perfomance?
550w psu
thermaltake big typhoon

So far I tried leaving all memory settings alone/stock. I don't know how to get the optimum overclock on these intels!!

All I did was up the multi to 12x, and set the cpu fsb to 287 = 3.45 gigs on air (60C). Seems stable but if I go higher it fails.

Can someone recommend max voltage settings?
Should I lower the multi and up the fsb? Does that matter? What other settings should I be playing with?

Any tips appreciated. I will be back with pictures later, after I am done playing.
etc

thx all

** so far: I will try lower volts later... right now I am still playing.

Here is the fsb OC results... now to try ram set and multi.

Do I have to put in the timing for the ram also? ie: 4-3-3-12

http://img204.imageshack.us/img204/7681/348vl4.jpg (http://imageshack.us)

[orion23]

Leave the CPU FSB as 266mhz (default)

Since you have the option of going higher with the multiplier, use that instead of the high FSB. (see how that goes)

Your problem might be the RAM right now. Try to set it to a 1:1 Ratio.
Look for something like 2.0, or 533.....
If your FSB is 266, your ram should be FSBX2 = 533 (which your ram can take since it will work all the way up to 800mhz)

And as you go higher, you'll need to give the CPU more voltage.
It starts @ around 1.3V. Go easy, 1.5 is very high, 1.55 is a lot, and 1.6 is too much

[Core2Extremist]

you should not need to touch the voltage on that cpu at all, anandtech was able to do 3.6ghz stable at 13x277 with a moderate heatsink/fan without any volt boost, then they took it to 4ghz but only with the best air possible the Tuniq Tower 120. They were using the P5W DH Deluxe as well running ram at 2:3 ratio.

Lower ur Fsb a bit or back to stock and up the multi some more.

[Mr.Kakarot]

thx for the reply. I will try that....

set ram, more juice.

I am at 3.48 right now but thats using the cpu fsb. I will try using just the multi tonight, with the ram set 1:1?

thx again

[Core2Extremist]

yea try it at 1:1, 1:1 for Intel Cpu's gives the best performance, that will run ur ram at 533mhz

let us know how it works out, still waiting on my x6800, should be here this week! all my parts are so lonely in this Case :(

[wickedld9]

you should not need to touch the voltage on that cpu at all, anandtech was able to do 3.6ghz stable at 13x277 with a moderate heatsink/fan without any volt boost, then they took it to 4ghz but only with the best air possible the Tuniq Tower 120. They were using the P5W DH Deluxe as well running ram at 2:3 ratio.

Lower ur Fsb a bit or back to stock and up the multi some more.


Anandtech was using a step 5 B1 CPU which are known to clock much better than any known retail CPU.

[Mr.Kakarot]

sent to original post

[Core2Extremist]

you can leave the timings on auto for now until you get to where you want to be then if you really want you can play with the timings but its not neccesary

I got the same ram as you, let me know what it runs at on auto settings at 1:1 ratio once you set it.

[Mr.Kakarot]

ok 13 x 266 booted np but that = 3.47

I tried 14x but it wont even boot, black screen and I have to clear the cmos....

so, do I creep up on the fsb now, or is that it?

thx again

[ca1n]

you should not need to touch the voltage on that cpu at all, anandtech was able to do 3.6ghz stable at 13x277 with a moderate heatsink/fan without any volt boost, then they took it to 4ghz but only with the best air possible the Tuniq Tower 120. They were using the P5W DH Deluxe as well running ram at 2:3 ratio.

Lower ur Fsb a bit or back to stock and up the multi some more.

There are some ppl that cant get 3.4 on a x6800. SO saying you can get 3.6 on any x6800 with out a volt bump I would say is uncommon.
Ya think anandtech gets sent a regular chip to do their reviews from?Not

[Mr.Kakarot]

Oh, im happy with 3.47 ;) nice temps... stable.

I just want to push it further, if it can be done....

I dont want to screw anything up though ;)

[Core2Extremist]

rofl nobody said you can get it on ANY, some chips oc better then others dont whine ca1n

[Mr.Kakarot]

you can leave the timings on auto for now until you get to where you want to be then if you really want you can play with the timings but its not neccesary

I got the same ram as you, let me know what it runs at on auto settings at 1:1 ratio once you set it.


When I set it to ddr2 533 you mean? cpu-z says 267.1mhz, 1:1, 5,5,5,10

unless I am doing something wrong

[Core2Extremist]

everything is correct 267x2=533mhz , cpu-z shows the real clock which is 267 the effective clock is x2=533

[orion23]

The only way to go higher is by using more Vcore.

1.4V is pretty low, start with that and see if it can take you higher than 3.4ghz.

I am confortable playing with 1.4-1.5, anything higher I cannot contemplate.

Others say 1.55v is not too bad either.

[ca1n]

rofl nobody said you can get it on ANY, some chips oc better then others dont whine ca1n

buddy look what you wrote. I was just being honest for kakarot that its foolish to say you wont need anything more than stock volts upto 3.6 based on a review where a hand picked intel was given to anandtech.
Anyways welcome to the board.

[Mr.Kakarot]

13 hours stable @ 3.47

How long do I run this, lol

[ca1n]

I run if it hits 12 hours its good for me.
up it bro

[Mr.Kakarot]

up what?

Seems if I go any higher it fails? Or do you mean up the fsb a little from here and try? I tried a few high ones but it fails past 3.5

http://img215.imageshack.us/img215/7205/18hourskj5.jpg (http://imageshack.us)

[ca1n]

need to up the volts.

[Mr.Kakarot]

bios is set to 1.55.....

should I go higher then that on air?!

[ca1n]

try 1.6
THat is what I think it took to get 3.6

[orion23]

OK, @ 3.4 you were using default Vcore, right?

For 3.5ghz you are now using 1.5V?

Going to 1.6 for a few mhz is not worth it!

And instead of the Vcore, try upping the MCH voltage gradually and lower your vcore a bit to see if you can do the same speed but using more vcmh instead of the vcore.

[Mr.Kakarot]

whats recommended on that setting? thx

[Falkentyne]

OK, @ 3.4 you were using default Vcore, right?

For 3.5ghz you are now using 1.5V?

Going to 1.6 for a few mhz is not worth it!

And instead of the Vcore, try upping the MCH voltage gradually and lower your vcore a bit to see if you can do the same speed but using more vcmh instead of the vcore.

QFT.

If 3.43 ghz requires default volts, and 3.5 ghz requires 1.5v, which is a large jump in vcore, I would keep it at 3.43 ghz. It's not worth a .1 increase in vcore for 100 mhz.

And 1.4v is the highest operational voltage authorized by Intel, meaning as long as you don't go above 1.4v, your chip should not have reduced overclockability or lifespan. 1.55v, which some people here already exceed, is Intel's *absolute* maximum voltage, which means that chips that operate below the absolute maximum, but above the operational maximum, neither long term reliability or functionality is guaranteed, but the chip should still function fine if returned back to operational limits, but with *possibly* eventually reduced overclockability or lifespan.
And, of course, if you exceed the absolute maximums, not only can functionality or reliabilty not be guaranteed, it can also seriously affect the chip's eventual reliability if returned back later.

The C2D chips are too new, so no one has any data on degrading overclockability of these chips or sudden death from extreme voltage, yet. You have a great chip if you can do 3.4 ghz on default voltage; I would keep it there and wait for the guinea pigs :banana: to blow up their chips or lose overclockability, before you risk getting a $1k keychain. You spent way too much on that chip to blow it up.

Unless you got it just for benching and purely extreme overclocking, which some people here do, "because they can" (a perfectly valid reason), but some just want to use their computers for a long time and play games. In which case you should wait for others to lose their overclocks before you lose yours.