Core 2 Duo Merom?.......i thought i got a Conroe

cdersham

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Oct 17, 2006
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I bought a core 2 duo E6400....just last week.. i didn't pay much attention on CPU-z of the name and code name.. of the processor... but what i orderd is this: Click here but what i got was a Intel Pentium M Merom. Now i must say its running great.. i have it water cooled at 3.2ghz 400 x 8 1.360v.. Idle at 25C load at 50C Water Cooled!!!...should i worry about it... isn't the main differences the voltages?? Should i send it back for the Conroe??

Thanks

Chris
 
This is a simple mis-identification, and NewEgg's add isn't precise either, since E6300's and 6400's are 2Mb cache Allendale Cores. The E6600's, 6700's and X6800's are 4Mb cache Conroe Cores. All share the same Vcore, except the E4300. Regarding temperatures, check out the following Sticky for spec's, proper temps, links, testing and results:

Core 2 Duo Temperature Guide

Hope this helps,

Comp 8)
 
Allendale

For a very long time, it was considered that the low-end Core 2 Duo desktop processors (E6300, at 1.86 GHz and E6400, at 2.13 GHz, both with 2MiB L2 cache) were specimens of the Allendale core. This wasn't true when the Core 2 Duo was released mind you. In actuality, these models were Conroe (4 MiB L2 cache) cores with half their L2 cache disabled. The Allendale core is manufactured with 2MiB L2 cache in total. The situation has changed however when the Allendale core was released with the Core 2 Duo E4300 in January 21st 2007, which can now be identified with it's L2 Stepping, there are now 2MiB cache total Allendale based Core 2 Duo E6300 and E6400 processors in addition to the original Conroe based E6300 and E6400 that were release back in July 26th, 2006.

Basically, the only difference between the Allendale and Conroe cores is that Allendale only physically has 2MiB of LV2 cache on it's core vs Conroe which has 4MiB cache on it's core.

Quoted from The Tech Report:
 
Yes, of course I looked at NewEgg's add, however, the following E6400 L2 stepping SL9T9 is from Intel's spec's:

Intel® Core™2 Duo Desktop Processor E6400

Now the E6400 B2 stepping SL9S9 from Intel's spec's:

Intel® Core™2 Duo Desktop Processor E6400

Note that both the L2 and B2 steppings are the same BX80557E6400 Box Order Code as shown in NewEgg's add, and the same Vcore. Go figure. Thanks, Intel, for so clearly differentiating.

Comp. 8)
 
Actually, the only lower C2D Vcore spec is the 4300 at 1.3250, but they all have the Tdiode enabled. I've noted that as good a job that NewEgg typically does on their adds, sometimes they don't get the spec's quite right. But since our friends at Intel can specialize in making their specs about as clear as mud, it's no wonder.

Comp 8)
 
I'm not aware of any benchmarks as of yet, but I wouldn't expect to see much difference, unless there are subtle improvements in overclocking characteristics due to the absence of the deactivated 2Mb cache, which I would think may potentially result in lower Vcore per clock.

Comp 8)