Official Core 2 Duo E7200 thread

[RunawayPrisoner]

I didn't see one from doing a search for E7200? Feel free to close the thread if one already exists, please. But before you do, please at least post a link to the existing thread. Thank you.

Anyway, back to the Intel Core 2 Duo E7200 at hand, I have this to show for now:



Aaaannnddd... 3.8GHz stable at 1.344v. Not bad at all, actually. Maybe it could be better... but oh well.

[spinejam]

nice start!

[dranom]

nice. can it reach 4.0? what temps?

[DFectuoso]

and what cooling

[RunawayPrisoner]

4GHz is totally possible, but since 3.8GHz is only stable at 1.344v, I don't even want to know what kind of voltage 4.0Gz would require. Cooling is with an ACF7 Pro. Temps are around 40C - 68C after the stress test. Since it's below 70, I don't bother with re-seating the HSF anyway. So first boot, first start, first install, and work right off the bat. I'm sure that with some lappings, some more tweakings, I can get 4.0GHz stable at a reasonable voltage. Still not going to try, though, because the last two Q9450 killed my enthusiasm.

[RunawayPrisoner]

Okay... I guess I wasn't so lazy after all.





And... off to tweak more!

[The Stilt]

Currently testing E7200 chip with Q751A473 FPO.

This chip has the lowest VID I have seen so far, 0.95V

The biggest problem with E7200 chips seem to be the physical size of the die.

The surface area of M0 stepping die is only 82mm² because of the fact that there is only 3072KB of L2 cache. The surface area of C0 stepping die is ~ 32% (82mm² vs 107mm²) larger so the heat will transfer better from the die to the heatspreader.

The heatspreader of M0 stepping chips is not glued to the die so it can be removed quite easily. The difference in die temperature (by CoreTemp 0.99...) was nothing less but 18c - 20c lower without the heatspreader.

In both cases Thermalright Ultra 120 Extreme (lapped) heatsink was used and the frequency and voltage settings were the same (4GHz, 1.33V).

Using Prime95 with 10K - 14K FFT lenght seem to give the highest die temperature and maximum unstability with M0 stepping chips.



The chip is currently running at 4.2GHz with 1.39V.

[MarlboroMan]

what is the S-Spec number of this M0 chip??

SLxxx ??

[Nulpunt]

Nice cpu in holland we haven't see such 1 :p

[graysky]

Anyone with a 7xxxx-series chip care to run it through the x264 Benchmark HD. We have no data points for these chips to date.

[RunawayPrisoner]

Nice chip, Stilt. Mine has a VID of 1.1625v, and it requires exactly .04v more than yours to be stable at 4GHz. 4.2GHz seems to require 1.42v for me, though... and since temps are quite crazy at 1.344v, I am thinking about doing something to the cooling before proceeding to higher clocks.

Oh yeah, and sSpec of E7200 is SLAVN.

[aoch88]

Looks like these E7xxx does just as well as the E8xxx at 4Ghz stable. Value for money for those that doesn't need the extra 3MB cache (how many would anyway)

[MarlboroMan]

Oh yeah, and sSpec of E7200 is SLAVN.

M0 or C0?

[RunawayPrisoner]

M0. Mine is a M0 chip. I don't even think Intel has produced a C0 E7200.

[mursaat]

Any ideas about how affects the 3Mb L3 vs original Wolfdales?

Anyone can make some tests?

[WhiteFireDragon]

Any ideas about how affects the 3Mb L3 vs original Wolfdales?

Anyone can make some tests?

yeah, how much faster is the extra 3mb cache?

[RunawayPrisoner]

From my own experience with gaming and normal applications, the extra 3MB of L2 Cache doesn't do anything... at all.

[Weelkoo]

as for the 3MB vs 6MB performance:

http://www.frazpc.pl/artykuly/588/CO...nm/ciag/dalszy

it's my review of E7200 - in polish but diagrams are easy to understand and You can find results of E8200 and E7200 working with same multiplier and FSB

[breakfromyou]

I just got an E7200 yesterday. VID = 1.050v, Q750A238

I picked this up just for some 45nm action.

I don't have windows installed, but i forgot to reset BIOS, so it booted at 1.050v, 3.16 GHz. What is considered a good overclock on stock vcore with these things?

[ZenEffect]

just recieved my E7200 30 seconds ago.

FPO/Batch # Q809A699

dont know the vid. bought it from newegg, retail box. testing results soon...

[NormanABates]

here's mine guys

http://valid.x86-secret.com/show_oc.php?id=362352

[NormanABates]

Forgot :
e7200 Q749a366

[palee02]

S-Spec: SLAVN
FPO: Q748A515

max. OC 4.4 GHz ... not stable... watercooled...

[Woody-san]

Proc





Benchmark




Validation Link: http://valid.x86-secret.com/show_oc.php?id=362453

- E7200 (Q802A613 #1)
- Xigmatek HDT-S1283
- eVGA 680i A1 Rev. A2 P31 BIOS (not yet updated)
- AxeRam DDR2-1200
- 3DMark03 stable (so far)

Had only enough weekend time to successfully complete several 3DMark03 runs on it...


..Domo Dakara-san for the FPO batch...




Ire fortiter quo nemo ante iit...
;-)

[Leeghoofd]

Is it possible guys to always add Batch, stable OC, mobo and cooling used... I'll add these CPU's to my current Wolfdale list available here :

http://users.pandora.be/OAP/wolfdaleOClist.xls