Need help OCing E4300 and P5B Deluxe

Stay away from bios 1004.
This is for 1333 FSB CPU support only.
It does not support roll back to previous revisions (not without a lot of headaches)
The E4300 is an 800 FSB CPU and will not have the same results as other Allendale or Conroe CPU’s
The only way to get your ram to specs is 266 FSB.
That gives you 533, 667 and DDR 800.
This E4300 has been portrayed as some sort of Super CPU and although it is a good one it is not a Conroe.

Really? I have heard lots of people having plenty of luck overclocking E4300s.

True, it's not a Conroe, it's an Allendale, but the only difference is it's made with 2MB cache instead of made with 4MB cache with half disabled like the E6300/6400, or with all enabled like the E6600/6700 and X6800.

People say it should be a great overclocking CPU because it has a multiplier of 9 at a default FSB of 200, but is manufactured on the same process as the proven excellent overclockers, the Conroe. In theory, it should have the same overclocking potential as the E6600, which has the same 9 multiplier.

He's not trying to make his RAM run at 533 MHz, he's trying to make his RAM run 1:1. Now, I'm not sure how the P5B deluxe works, but does setting the 533MHz setting mean your RAM will, no matter what the FSB, run 533MHz, or is it just a round-about way of saying 1:1? I suspect the latter. What would happen if you underclocked, say, an E6400, to 200MHz FSB, but left the setting at "533"?



To the OP:

Have you tried changing the RAM speed to 533 in the bios, with everything else at stock, and then seeing what it says in the memory tab of CPU-Z, or in some other memory utility? If it says 200MHz, it's 1:1. If it says 266MHz, it's an absolute 533MHz setting.

And, yeah, that should be all you need to do to set the advertised latencies.

It is a good overclocker but you have to treat this CPU as it is designed.
Getting high OC's from this CPU in comparison to its stock clocks is rewarding but it will not behave like people think it will.
The Super Talent Running 1:1 will need the FSB to come up to 266 on the P5B.
E6600 is 9X also and having the 1066 strap makes it the superior chip to overclock.
In fact the E6300 blows this CPU out of the water because of the 1066 FSB strap even at 7X.

So you're saying the board is incapable of running the RAM at any speed lower than 533MHz? What if you popped a Pentium 4 and some DDR2-400 in there?

Also, I thought the straps were related to the chipset, not the CPU. But I don't know a lot about straps.

It depends on the CPU support in bios.
The E4300 seems to skip logic 8)
The Straps set the base frequency.
The higher the base the better the bandwidth and this improves your FSB capabilities.

Thanks to all those who replied.

Pimecone - I will try as you specified - set it at DDR2-533 and then run CPU-Z and see what it says. If I'm at 4:3 ratio, then perhaps Asus can provide some help. Asus makes this confusing, IMHO - I don't know why they don't just let you change the ratio itself rather than labeling/dumbifying it (if in fact that is what they are doing). You are correct in that my goal here is not to make my ram run at 533, but to get the 1:1 ratio and then OC my FSB (hopefully to ~350MHz).

Figured it out. I changed the Memory to DDR2-533 and changed the FSB to 266. CPU-Z reports a 1:1 FSB to Mem Ratio.

On another note (And I'm sure this has been posted elsewhere), why does CPU-Z show my CPU multiplier toggling from 6 to 9 when I have speedstep turned off?

But what happened when you had the FSB at 200MHz and the RAM set to 533MHz?

It reported 4:3 ratio