Core i7 920 rev D0 stepping 5 :)

[MrMason]

Very nice! I'm pleased to see that my C0 stepping can still compete, prime95 stable with 1.27V at 4Ghz

How did you get the 22x multi with all 4 cores and hyperthreading on?

[hlonipha]

Well, you can assume that all chips that start with 39 will be D0 because they would have been produced in 2009. Also, potentially some late week production 38 chips. I also think my boxes at least indicated C0 on the box sticker, but I don't feel like digging through my stuff to check now. They will have the same tray price as current chips (I checked this a while back with Intel).

I just talked with an intel tech support rep about an RMA and he told me that they did not have any 920 available for Advance Replacement until 17 March 2009. I wonder if the replacement will be a DO chip.. When are they supposed to be on shelves?

[Splave]

Very nice! I'm pleased to see that my C0 stepping can still compete, prime95 stable with 1.27V at 4Ghz

How did you get the 22x multi with all 4 cores and hyperthreading on?

Maybe because its an ES

[Leeghoofd]

Those volts are crazy lol. I have not went over 1.35v and that was good for 4295 pi and only limited by QPI. Probably good for 4.4Ghz at 1.35v if I rely on turbo

Not all CPU's are alike, mine even needed 1.4Vcore for just 4ghz stable ops, my new one seems better not even close to your cpu ( estimating 1.28-1.3Vcore for 4ghz ops ) It's not because it's a new stepping that it automatically means lower Vcore... If Intel just got their memory controllers up to scratch that would already be nice...

I agree

you agree on what ? too high voltage ? ow c'mon he will not run them volts 24/7

[MrMason]

Maybe because its an ES

Nah I've seen others do it, it's something in BIOS that needs to be changed.

[Leeghoofd]

It's only on one core I believe, new Asus Biosses release it too... I920 : 22 multi, I940 : 23

[Splave]

Ive seen it too but never with 4 cores 8 threads before

[MrMason]

Ive seen it too but never with 4 cores 8 threads before

[Splave]

^ Yeah I know, this is what im refering to Never seen anyone do that before on a retail chip

[roller11]

ES chips typically have unlocked multipliers, we won't see 22x on retail chips.

[ReverendMaynard]

ES chips typically have unlocked multipliers, we won't see 22x on retail chips.

absolutely, but cpuz also doesn't favor too well with unsupported steppings as well, so how can we be sure that anything in that screenshot is worth talking about?

[ewitte]

Not all CPU's are alike, mine even needed 1.4Vcore for just 4ghz stable ops, my new one seems better not even close to your cpu ( estimating 1.28-1.3Vcore for 4ghz ops )

4.05 runs at 1.225v (only tested with HT on) though I only left prime open for 10 minutes because the temps where getting close to 100C. My guess is with the correct temps that would be stable because 1.2v still runs prime for about a minute. Until I have the temps under control not sure if it has to bump up to 1.25 or not.

Still going prime (7 hours) 3.6 @ 1.085v

[dejanh]

^ Yeah I know, this is what im refering to Never seen anyone do that before on a retail chip

ES chips typically have unlocked multipliers, we won't see 22x on retail chips.

absolutely, but cpuz also doesn't favor too well with unsupported steppings as well, so how can we be sure that anything in that screenshot is worth talking about?

I've been having that exact argument with people over on overclock.net in a thread about this thread. I have had 4 940s over time and I could never get the +2 multiplier to show up unless physically disable all but one core. ES chips do typically have unlocked multipliers so this is indicative of nothing.

Most of all, amen Reverend on this statement

This thread was started with the intent of giving false information.

I think that's the whole goal. To spread false information around and that's exactly what ticked me off a bit. If this thread were actually true, then Intel has released the single biggest lie upon its consumer base in the form of i7 C0. It would make the C0 a beta chip, an unfinished piece of technology that was sold to people as final retail product for what would ammount to field testing for the sole purpose of getting a leg up on AMDs PII or something. Even Intel does not go that low.

Again, I say, 57C on air at 4.305GHz, 1.52V

This thread should be removed.

[zlojack]

Again, I say, 57C on air at 4.305GHz, 1.52V

This thread should be removed.

LOL



Seriously.

[okorop]

LOL



Seriously.

I agree LOL it'is impossible with 1.5 volts having a core temperature of 59 degree

[ewitte]

Again, I say, 57C on air at 4.305GHz, 1.52V

This thread should be removed.

Thats like my idle temps. Even when the TDP is down to like 48W so possibly everything up to c0 just reads the temps wrong? Thats the only thing that could be going of if thats true.

[NBF]

Its an ES with new stepping chip....

Take it easy people, those softwares can give wrong readings, temps may be off scale.

Lets give the man more time to fidle and report back as further testing is done.

[dejanh]

Its an ES with new stepping chip....

Take it easy people, those softwares can give wrong readings, temps may be off scale.

Lets give the man more time to fidle and report back as further testing is done.

There is no time! Must know the truth! j/k

[Fafeifa]

If the D0 was that good, i'd give away my C0

[dejanh]

If the D0 was that good, i'd give away my C0

I think if it was Intel would be offering free replacements to people just to ensure nobody causes trouble over getting such bad chips that are C0 Not to mention good luck to retailers trying to sell C0s, lol.

[CmB]

If the D0 was that good, i'd give away my C0

While your giving away CPUs, I'll gladly take them for DC projects.

[Fafeifa]

While your giving away CPUs, I'll gladly take them for DC projects.

I think you've missed the sarcasm there

[CmB]

I think you've missed the sarcasm there

Actually, I didn't. Was worth a shot anyway, wasn't it?

--Chris

[NBF]

To post a screen shot and act like it's all kosher and that it is actually running at those speeds/volts is what sparks the imagination in riots of idiots who believe anything they read. Do you know how many forums are linking this thread and the kind of conversations that are going on about it?

This is not retail, and ES chips should never be shown to the public in the first place because indeed none of us are going to own a chip like that unless we obtain in illegally.

thread = fail....yank it.

I respect how you feel about it, but the OT shouldnt be blamed for what others imaginate from his screenshots IMHO.

All I see in his screens is that he has an ES D0 chip that runs 3dmark06 with 100MHz higher clock than my best C0 on air.

[dejanh]

Just for comparison sake I decided to do a quick max BCLK run on my 940 using the R2E board. For some reason even when I set the BCLK to 222MHz CPUZ still shows it at 220.8MHz, and TurboV (silly Asus tweaking tool) shows it as 221MHz. Either way, it's set at 222MHz x 15 and boots with 3.33GHz. I just randomly picked a voltage of 1.10625V (LLC is not enabled).

Should this be impressive (see screenshot)? Based on what everyone is making out the D0 to be it should...

The point is, this D0, there is nothing to it. It just creates a false impression that the chip is amazing. Realistically, there is nothing different we are seeing here than with a C0. Max BCLK/QPI clock is either restricted by the CPU or by X58 IOH. Not sure which one, and we won't really know until maybe the B-3 X58 revision is out to put this to the test with its IOH improvements. I believe Saaya had a good theory on QPI limitation being tied to the X58. Only a lower multiplier for QPI will at this point allow higher BCLK speeds and I think this was known about a week after i7 came out. I posted about it way back as well. Some boards do a bit better job, like the DFI, but most will top out (99.9%) at 220MHz-222MHz, or basically 4GHz QPI (8GT/s).