Hitting a 3ghz wall w/ e6600

[azianboy8]

Hi Guys,

This is my first post on this forum so excuse me if I mess up somewhere. Anyway...

I have an e6600 on a p5w dh deluxe w/ a Thermalright Ultra 120 Extreme and a panaflo fan over it. I also have 2 gigs of crucial ballistixs that run at 6400 @ 2.2v w/ 4 4 4 12 stock. I can run orthos for 24 hrs. running my e6600 at 3ghz (fsb 334) @ 1.325v, memory at 1000 w/ 5 5 5 15 @ 2.2v, mch on auto with no problems. But anytime I try to up my fsb past there i can't get it stable.

I'm trying to hit 3.2 ghz (fsb 356). But no matter what I do I can't stabilize it. I've tested my vcore all the way up to 1.5, the mch up to 1.85 (max setting for my mobo), and memory voltage up to 2.35 and still can't stabilize it on orthos. My temperatures are fine on my cpu. The error I always get after running orthos for about 10 seconds is a rounding error of .5 instead of the estimated .4. Any ideas on how to get past this wall short of getting a new cpu?

Thanks everyone for reading.

 

[patchez]

If your only trying to reach 3.2ghz, you could try lowering the multiplier to 8, and try increasing the fsb to 400mhz.
or try increasing your northbridge voltage (you didnt mention trying that)

I had trouble getting past ~3.1ghz on the 9 multiplier with my e6600 without raising the Vcore substantially. i'm sitting at 3.2ghz (8x400) until i get a mobo that will allow me to control the northbridge voltage.

 

[azianboy8]

Hey Patchez,

Sorry I didn't clarify. I believe by raising my MCH as mentioned above, on my mobo it's equivalent to raising my northbridge voltage.

I've tried also lowering my multi to 8. But for some reason I can't get my comp to POST when I do so. How high did you raise your vcore and northbridge voltages by when doing so? For my mobo it might also be a bootstrapping issue which is why I can't get it to POST not sure. Thanks for the reply.

Any other suggestions?

 

[xringx]

Have you tried reducing your timings on your memory?

 

[azianboy8]

I've tried relaxing my timings at 6 6 6 18, and I've tried to let my mobo auto set my memory timings by turning on SPD. Still no luck, always get a rounding error.

 

[cd14]

Hi Guys,

I can run orthos for 24 hrs. running my e6600 at 3ghz (fsb 334) @ 1.325v, memory at 1000 w/ 5 5 5 15 @ 2.2v, mch on auto with no problems. But anytime I try to up my fsb past there i can't get it stable.

/quotemsg]

Is this correct...ram at 1000 mhz for PC6400? Maybe that's the wall, 400 mhz over. For the sake of it get your ram close to 800 mhz with auto timings and see if that works. You're trying to overclock both at the same time.