Core i7 920 rev D0 stepping 5 :)

[Lu(ky]

3849A832 seems to be almost on par with the 3845B027 as far I have seen. For example this thread @ the evga forums.

Keep the A832

Thanks, tough call I guess, but seems that less voltage for the same clock would be more beneficial, since I would be running WCG and F @ H on the system. If I could hit 4-4.2 ghz with no more than 1.3v; I would be happy. My Co's from my little experience only hit 3.8@ 1.3v.

Just found a 3849A832; would this be slightly better than the B028 or B203? Someone above said that the A832 would be equivilent to the B027 which is a great chip to have from what Ive read.

Or better yet; which batch would be of best interest? Thanks

EDIT:Would a xeon w3520 be a better option? not even sure if they are supported my my mobos yet; BloodRage, Biostar Tpower, Gigabyte UD4P

A832 is a good batch they all seem to do the same, I can do (Prime Stable) 4.5ghz HT on 4.6 ht off and 4.2 HT on with 2000mhz mem 7-7-7-20. It can go higher than this if you can keep the temps under control.

Okay, so lately has anybody been able to get any earlier batches (3845/3846) from Micro Center? Trend tends to indicate that earlier batches OC better than latter batches. Haven't checked any 920 lately at MC, so I'm not sure what kind of batches they have now comparing to a week ago or earlier.

I picked this one up today at MicroCenter in Tustin, CA I plan on going back and looting the store.. I will try to buy as many as I can --------> H E R E

[jcniest5]

I picked this one up today at MicroCenter in Tustin, CA I plan on going back and looting the store.. I will try to buy as many as I can --------> H E R E

I read some excellence OCing on this batch, too! I want to try one, too...but running out of $$$!

Where's the Pack Date info?

[dan7777]

ive asked this on other threads but where can i get a i7 920 DO uk retailer plzzzz anyone know thanx in advance

[BustaH]

ive asked this on other threads but where can i get a i7 920 DO uk retailer plzzzz anyone know thanx in advance

Scan/novatech/ocuk most of them have d0 now.

[stealth1205]

picked up a d0 920 slbej // batch 3849A866 at microcenter in NJ last night wondering if anyone has any experience with this batch or if i should return it and look for a more known one?

edit: pack date is 4/07/09

[masska]

guys I've got a pick of DO's from a local and I'm about to buy it.

is this batch any good #3912A801 ?

[jcniest5]

picked up a d0 920 slbej // batch 3849A866 at microcenter in NJ last night wondering if anyone has any experience with this batch or if i should return it and look for a more known one?

IIRC, someone got one of those...unfortunately, I don't rememeber where I have read it and honestly don't remember what's the OCing potential of that batch.

guys I've got a pick of DO's from a local and I'm about to buy it.

is this batch any good #3912A801 ?

It's the newest batch out there, I believe. You be the first one to try it and let us know how OCable it is. People might flock to find it if it OCs like crazy.

Good luck and keep us posted....

[Dahmer]

I guess I got one of the worst batches
4.0 GHz needs over 1.3 V, bios setting 1.4 and cpu-z reports 1.36 V when stressed. I tried lowering but when I do occt crashes after a few minutes. (no bsod though)

Changed BIOS Settings :
bclk = 200
most of the cpu settings off including turbo (ht still on)
vcore = 1.4 V
qpi/vtt = 1.4 (found some guide that suggested 1.5 but lowered it to 1.4 and it's doing fine, could probably go bit lower still?)
ram multi = 8x (results in 1600 MHz) using 1600 OCZ Reaper
uncore multi = 17x
rest of the voltages are set to auto

Any ideas here?
Batch = 3851A262

[Lu(ky]

Where's the Pack Date info?

03-24-09 is the pack date. I will try it this Sunday when I get my 4th Vertex on a Bloodrage, P6T Del V1, or about a week a Rampage II Gene.

[LinkinParkBoy]

Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [21]
BCLK Frequency ...................... [200]
PCIE Frequency ..................... [100]
DRAM Frequency ..................... [1600Mhz]
UCLK Frequency ..................... [3400]
QPI Link Data Rate ................. [Auto]

Dram Timming Control -> 9-9-9-20

EPU II Phase Control................[Full Phase]
Load Line Calibration.................[Enabled]
Cpu Differential Amplitude..........[Auto]

Extreme OV.............................[Disable]

CPU Voltage ........................ [1.21v]
CPU PLL Voltage .................... [1.81v]
QPI/Dram Core Voltage .............. [1.20v]
IOH Voltage ........................ [Auto]
IOH PCIE Voltage ................... [Auto]
ICH Voltage ........................ [Auto]
ICH PCIE Voltage ................... [Auto]
Dram Bus Voltage ................... [1.55v]
____________________________________

CPU Spread Spectrum ................ [Disable]
PCIE Spread Spectrum ............... [Disable]
CPU Clock Skew ..................... [Auto]
IOH Clock Skew ...................... [Auto]


21 x 200 = 4200Mhz | Rams: 1600Mhz
Rampage II Extreme + Team Elite 1333Mhz @ 1600Mhz 1.5v @ 1.55v

[jcniest5]

I guess I got one of the worst batches
4.0 GHz needs over 1.3 V, bios setting 1.4 and cpu-z reports 1.36 V when stressed. I tried lowering but when I do occt crashes after a few minutes. (no bsod though)

Changed BIOS Settings :
bclk = 200
most of the cpu settings off including turbo (ht still on)
vcore = 1.4 V
qpi/vtt = 1.4 (found some guide that suggested 1.5 but lowered it to 1.4 and it's doing fine, could probably go bit lower still?)
ram multi = 8x (results in 1600 MHz) using 1600 OCZ Reaper
uncore multi = 17x
rest of the voltages are set to auto

Any ideas here?
Batch = 3851A262

What's your DRAM Voltage? You may want to set it manually it to 1.65V and see if it helps stabilize your system. It's hard to tell otherwise if you let most setting at Auto. It may not be the CPU at all.

[Dahmer]

What's your DRAM Voltage? You may want to set it manually it to 1.65V and see if it helps stabilize your system. It's hard to tell otherwise if you let most setting at Auto. It may not be the CPU at all.

Hmm I should've thought of that
Guess I could also lower clocks on the ram a bit and see if vcore really wont go lower, temps stay under 80°C so I'm not worried there.

[chance]

Congrat. very nice CPU, what's D0 batch?

Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [21]
BCLK Frequency ...................... [200]
PCIE Frequency ..................... [100]
DRAM Frequency ..................... [1600Mhz]
UCLK Frequency ..................... [3400]
QPI Link Data Rate ................. [Auto]

Dram Timming Control -> 9-9-9-20
EPU II Phase Control................[Full Phase]
Load Line Calibration.................[Enabled]
Cpu Differential Amplitude..........[Auto]

Extreme OV.............................[Disable]

CPU Voltage ........................ [1.21v]
CPU PLL Voltage .................... [1.81v]
QPI/Dram Core Voltage .............. [1.20v]
IOH Voltage ........................ [Auto]
IOH PCIE Voltage ................... [Auto]
ICH Voltage ........................ [Auto]
ICH PCIE Voltage ................... [Auto]
Dram Bus Voltage ................... [1.55v]
____________________________________

CPU Spread Spectrum ................ [Disable]
PCIE Spread Spectrum ............... [Disable]
CPU Clock Skew ..................... [Auto]
IOH Clock Skew ...................... [Auto]


21 x 200 = 4200Mhz | Rams: 1600Mhz
Rampage II Extreme + Team Elite 1333Mhz @ 1600Mhz 1.5v @ 1.55v

[namegt]

The new D0 batch Korea
Well, what do you think?

[ReverendMaynard]

[masska]

The new D0 batch Korea
Well, what do you think?

@ namegt, I'm just about to order the same batch as you.
Have you pushed it any more and what cooling are you on ?

get back to me asap, my finger's on the trigger

[Shalamay]

A friend found a DO at some shop in the bay area with batch 3845B258, is that any good?

[Kensek]

A friend found a DO at some shop in the bay area with batch 3845B258, is that any good?

That's what Pao is selling on eBay.

http://cgi.ebay.com/New-Intel-Core-i...3A1%7C294%3A50

[Shalamay]

That's what Pao is selling on eBay.

http://cgi.ebay.com/New-Intel-Core-i...3A1%7C294%3A50

Is that a good batch? I think he said it was $229 (they will price match Micro Center) if I remember right.

[algorhythm]

I got a 3849B310 (which I haven't heard mentioned), pack date 5/15, so its new? Anyone have any word?

yay? (Rig not build yet and I'm a new OCer so I won't have much of a review for a while)

[jcniest5]

Stopped by the local Micro Center and checked out a few batch #s...

Here is what they have (all DO SLBEJ):

3849A799
3849A925
3849B018
3850A849

Any of these rings any bells of OCing?

There were also some C0/C1 SLBCHs, but wasn't interested in them...

[phsinc1]

is the A and B differs anything?

I heard B's are better with C0/C1, is it same with D0's?

[davewolfs]

I've been pretty happy with my C stepping running @ 3.8Ghz stable on air. What kind of increase can I get with these D0 stepping chips? Am I better off just waiting for some higher clocked chips to come out?

[jcniest5]

I've been pretty happy with my C stepping running @ 3.8Ghz stable on air. What kind of increase can I get with these D0 stepping chips? Am I better off just waiting for some higher clocked chips to come out?

A D0 will give you at least 4Ghz (my does 21x205 on a crappy mobo). But if you are happy with your C1, there is no reason to get a D0. People who get the D0 are the the absolute maniacst of the PC users. They want the absolute best every single time.

is the A and B differs anything?

I heard B's are better with C0/C1, is it same with D0's?

In general, yes. But I have read there are A batches that OC like crazy as well (IE: 3849A832). It's a certain batch (whether it's A or B) that are distinguishable among others...that can OC like crazy. It's not every A batch or every B batch, that's why it's so hit and miss. Sometimes you would get a B that would OC like crap. And the same for A batch. There is no garantee unless you can hand pick one that has already provened by someone else. And even that is not a garantee because every chip is different, even if it's the same batch # as what the other users have.

[jooney]

Xeons are also welcome?