Tried two units, crap like hell. But doesn't means ALL are bad, some aren't. Just has to depends on luck.

http://www.xtremesystems.org/forums/showth...highlight=batch

L628, L629, L631. A or B, should be fine. There's many more to it, not necessary have to get those weeks. Some newer batch I seen can clock as good as those older batchs.

I got a L633 F batch, very good. 3.2Ghz @ 1.31v, compared to my previous L629B, 3.2ghz needs 1.45v. I searched through some sites last time, some said F is good, some said F is lousy.

This post has been edited by Hyde`fK: Apr 15 2007, 01:51 PM

Getting quad core?

Nah, those batches are just good overclockers, but doesn't mean all can reach 500 x 7 too. Have to really depends on your luck. Get one, test it out. Not satisfied? Sell old one and get another new unit.

Yea, don't forget processor has FSB wall. My previous L629B maxed out at 480FSB, L633F can go over 500FSB. Even I set 481FSB with 1.6v also cannot boot.

Nice chip there. Still need more users who own F batch to post their results here. See how good F batch can be. E6300/6400 tends to has different results with E6600. What I found in most sites with F batch is E6600. Would like to see more from E6300/6400.

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Added on April 15, 2007, 2:51 pmHow much vcore you applied to archieve almost 4Ghz btw?

This post has been edited by Hyde`fK: Apr 15 2007, 02:51 PM

Yea, but do hope you can find one that's good. Buy and resell makes your rugi alot lar. LOL!

Woo, that's high. I thought would be around 1.55v ~ 1.6v.

Wanna ask around if anyone gets real vcore value higher than BIOS set vcore value before?

I pencil modded my P5N-E SLI and I BIOS set 1.325, real gives me 1.344v, BIOS 1.3v, real 1.328v.

Normal? Safe?

Yea, but my case here is that my real vcore is higher than BIOS set, not sure anyone encounter this before.

I'm using 3rd and 4th now. The first 2 ram slots are not stable when I get back from RMA yesterday. The board is abit weird cause even I plug in one RAM, CPU-Z shows dual channel. Same thing when I plug into 3rd and 4th, which is yellow and black slots. Awaiting reply from supplier now.

No ler, my previous E6600ES can't even touch 3.5ghz ler.

You're on stock cooler? If so, its normal.

Mind stating the settings you applied when doing 3.4Ghz?

What about FSB, RAM speed and timing used? I believe your RAM is D9 chipset, no? 1.6v vcore with a little vdroop to let's say 1.55v should be enough to get E6600 to run 3.4Ghz.

Try this settings.

400FSB x 8, DRAM timing 4-4-4-12 if its D9GXX, or 5-5-5-15 if you want to be on the safe side.

Vdimm 2.0v
Vcore 1.5v to 1.55v
Vmch +0.2v <-- is this NB voltage?

Then you might want to try >400FSB with 7x multiplier. This to find what's the highest FSB the proc can go, cause there will be a FSB wall.

Lower multiplier because it's to test the how high the FSB the proc can reach with lower speed. If you're going to test >400FSB with 9x multiplier, you're already reaching over 3.6ghz at least.

You might want to try 450 x 7 = 3.15Ghz first.

For DDR2, higher frequency is much more better than tight timing.

Eg.

1000 4-4-4-12 vs 1200 5-5-5-15, the latter should perform better.

Mind stating what FPO/Batch is that?

Aiks, guess I skipped/forget it. My company just ordered two units of E6600, L651B718, wonder if its good or not.

Its not Vista bug either. Orthos will only recognize the default multiplier. Like E6700 has 10x, and you set for example 400 x 8, it will shows 4Ghz instead.

@Suk

Your DS3 has a vdroop of around 0.08v, which is pretty bad I would say. So just remember this vdroop value, it will helps you in future overclocking. Your RAM timing you can set to 5-5-5-15 instead using auto.

Now you might want to try 450 x 8, which is 3.6Ghz. Just now I get to test out one E6600 with batch L651B, 450 x 8, 1.4vcore bootable.

What vcore in BIOS you set? Try 1.5v BIOS, should give you 1.42v real.

Windows XP also has the same problem actually.

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Added on May 16, 2007, 9:34 pm3.4Ghz actually

This post has been edited by Hyde`fK: May 16 2007, 09:34 PM

@remysix

Bootable only, not sure in Windows will be stable or not. Don't want to overclock too much as the system belongs to my customer. Anyway, gonna see 3.6ghz @ 1.4vcore will be stable or not tomorrow. Yet to install Windows XP onto it.