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E6750, not impressed

Justintime

Justintime

Justintime

Soldato
Joined
24 Jul 2006
Posts
8,876
Location
Hoddesdon, London, UK
Have tried 4 so far and none would even POST 3.4GHz on the same volts that my old L629B E6600s would run rock solid which is 1.3v, all needed at least 1.35v to POST and 1 needed 1.425v to run stable (orthos etc..) and two did better with 1.3675v while the last was a stinker at 1.485v needed. Thought G0 was supposed to be better? :D Seems the rumor is true about the speed binning, the one 6850 i've had my hands on only needed 1.275 for 3.4Ghz and quite comfortably did 3.7Ghz on 1.365v
 
truebluecfc said:
Well my E6600 needed 1.55 to get to 3.6GHz.
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The 2 L629B E6600 i have will do 3.6 on about 1.35v and 1.375v, they're hot runners though so i keep em at 1.3125v and 1.3v for 3.4GHz (weird that one cpu will do 3.6Ghz on less volts but need more than the other for 3.4Ghz eh? :D)
 
helmutcheese said:
Whats your mobo, you may have volts droop.
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Bad Axe, Bad Axe 2, DS4 rev1, P5B, DS3 rev1, P35 DS3, Striker extreme

pick your choice :D Different psus too. All exhibit the same. Also if Vdroop was to blame, why would the E6600s clock so well? Its obviously something with the 6750s and i aree that 4 is not a big amount and it could be bad luck but it seems is not only me.
 
Yep but thats just one of a few boards, same result with all :) They run the E6600s fine with no notable vdroop including the Striker, what're u using to monitor voltages?
 
I get you mate, but even with a Vdroop, the point i'm making is that the silicon is not on par with my older E6600s, if it was actually better then obviously it'd oc better and at least run the speeds my older Conroes did. Its all down to luck but i would've expected better especially with 4 cpus lol. as i said, this result is across the board with all the mobos in question, different psus video cards and RAM as well in all so nothing remains the same, the older E6600s just OC much better. Hopefully this is a one off bad batch but it seems its not only me seeing rubbish ocs with the 6750 and lower.
 
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How were you taking the temps? Might be higher than you think mate, not sure if TAT or Coretemp etc.. is fixed to read them right yet. Got one atm at 3.2Ghz and its saying 39C loaded at 1.35v and a Big typhoon sink (TAT load) :D
 
Client rigs, just testing out the ability of the cpus before they live as stock runners :D Would've kept a good clocker though.

3x L719A, L722A
 
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Might be lucky -ish got another A 6750 thats doing 3.52Ghz on 1.4v, so far with a Tuniq tower its about 45C loaded on Orthos, so about 60C real, just hoping for a warm day to really see the temps, this is on the lowest fan setting mind.. so with a better fan i can prolly expect quieter and better cooling. This ones running 440Mhz easily.
 
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helmutcheese said:
According to CPU-Z, "GO" is not the stepping, its the Revision, and "B" is the Stepping.

I came from AMD so I am not FAM with Intels codes, but I would hazzard a guess the makers of CPU-Z know what they are doing.
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Everyone i know refers to it as the Stepping, B3 was the stepping before and any other chip made after is referred to as a revision of that stepping until the next one, that makes more sense to me.

http://64.233.183.104/search?q=cach...on_numbers)+stepping&hl=en&ct=clnk&cd=2&gl=uk


Stepping is a designation used by Intel and AMD to identify how much the design of a microprocessor has advanced from the original design. The stepping is identified by a combination of a letter and a number.

Typically, the first version of a microprocessor comes out with stepping A0. As design improvements occur, later versions are identified by changes in the letter and number. Changes in the number (for example, A3) indicate minor design changes, whilst changes to both the letter and number are made following more extensive changes (for example, B2). Stepping allows consumers and servicers to identify a microprocessor's version.
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Thus as you can see G0 is the first of the stepping 'G', making a program that reads cpu values does not make you an expert in cpus.
 
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Yep anything extra is pie, returning a cpu cause it don't clock well is not a valid reason, unless it was sold and advertised as a good clocker, even then the variables such as board, memory etc.. used can give false bad result. Though i see why people would do it ;)
 
Way i see it is they cherry pick the absolute cream of the crop for review sites and of course they overclock like mad. We get all hyped up expecting super oc's on low low volts etc.. as a norm and get severly dissapointed when the actual retail product dosen't quite live up to expectation :D I've yet to have or even see an E6750 that could do the volts at the clocks my L629B can do, granted its a great chip, even for its revision but i thought they'd be more like it in the G0 chips. I've had one of the 29B chips at 4Ghz with a 100CFM fan and Ultra Extreme at 1.5v :D Rock solid in orthos and 3D, only thing holding me from running this 24/7 is i value my hearing and the temps were still on the high side at 72C TAT load and generally not into water or phase anymore :D
 
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What cooling? What're u using to measure the temps and are you adding 15C to the reading? If you're using the motherboards utility its wrong as it won't read directly from the core, use coretemp or intel TAT and add 15C to the read results.
 
Getting better luck it seems with some other A chips, got 2 right now to go off next week in systems but both seem to do 3.3Ghz -ish on stock, far cry from my E6600 experiences but better.
 
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