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Thread: Question, About Core Voltage




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    Default Question, About Core Voltage

    I've been reading the spec sheet for E Series CPUs and was trying to understand what the statement (with respect to Vss) means in respect to max Core Voltage, Table 3, Page 17.
    Link: http://download.intel.com/design/processor/datashts/318732.pdf . <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
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    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Question, About Core Voltage

    Not sure what you are asking here? Please expand your thoughts

    And I will give you mine, I did have a look I am just not sure what you are asking about. Post a image if you need to.

    Guess I am lost too eh?

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    Default Re: Question, About Core Voltage

    I'm thinking as measured at the appropriate pin on the socket. Sorry I didn't answer sooner, been playing all weekend with a E8500.

    After a few hours ot tweaking
    XtremeSystems Forums - View Single Post - Official ASUS X38 Boards: P5E, P5E3 - Info/BIOS Thread

    Sorry it's not a Gigabyte but the next one will be, waited to long for a BIOS that would run the ram above 1145 stable. Also benched at 9.5x450 ram at 1200 same mem settings.

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    Default Re: Question, About Core Voltage

    A couple of things, more related to your screenie than your original question though.

    Your load temps are 5C higher than core temp is showing, you need Core Temp 0.99.3 or Real Temp 2.75 in light of the new TjMax info released by Intel.

    (A New Processor Temperature Specification: Using the Digital Temperature Sensor)

    Nice oc at that voltage, lowest VID I've seen yet, it should overclock well with low(er than most) vcore. What is your target speed? 4.50GHz?

    Give IntelBurnTest (aka LINPACK with AgentGOD's front end) a run, slightly more demanding than Prime95 and a lot quicker too (yay for no more 8+ hour stability runs)

    _
    Last edited by ANZAC_ELITE; 08-26-2008 at 08:24 AM. Reason: smiley didn't work, removed it
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    Default Re: Question, About Core Voltage

    Thanks for the heads up about the TjMAX, and less than 15 minutes looks real good too. I'll give it try this weekend. I was hoping for around 4.2 but after comparing it to other voltages in the same clock range, 4.5 might be a go. Should have argued with my wife awhile longer and got the E8600, after seeing your results.
    Last edited by Aleslammer; 08-27-2008 at 03:54 AM.

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    Default Re: Question, About Core Voltage

    That E8500 has a lot of potential given its low VID, you will probably be pleasantly surprised. We (at a different forum) have a data base which seems to support the "lower the VID the better the overclockability" theory.

    The wife (she whom we ignore at our own peril), I know your pain, I have one too. $80 for a hairdo is no problem but $300 for a new cpu?? well you'd think I'd sold the house.

    28 years this year, you'd get less time in jail for murder.

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    Default Re: Question, About Core Voltage

    IntelBurn: you got to be kidding me, ran 1 test on half my memory, it was like I didn't have a HSF and thats after I'd lapped my CPU and added a stronger fan to my cooler, (shaved 4c of my Prime temps) makes Prime look like a VW running at the artic. What you getting when you run it. I saw some low 90s that had my finger twitching on the power button, was kinda wondering when the cpu was going to turn it's self off. Pasted the one test.

    33 years for me, only home on the weekends for the last 22. Makes coming home fun most of the time.

    Added:
    Loaded the new Real Temp mid 70s going to get a back plate for my cooler or switch to a Ultra. Wouldn't run with all memory, custom ram 1024 and 10 test passed. I was wrong on the 90s low 80s checked it again using Core Temp.
    Last edited by Aleslammer; 08-30-2008 at 10:58 PM. Reason: Update

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    Default Re: Question, About Core Voltage

    The temps in the screenies above are low by 5C as it is the old Real Temp and not a true max temp indication as the test had completed and the temps shown had not fully retreated to idle either.

    At 4.0GHz with vcore of 1.225v(bios) I'm getting temps around the 54C mark, ambient air temp is 20C

    I would suggest that at 4.25GHz it would be in the low 60C, I'll run it up at that next time I reboot to confirm

    EDIT: Underestimated the 4.25GHz by a bit, it actually hit 68C as seen in the second screenie.


    Last edited by ANZAC_ELITE; 08-31-2008 at 05:51 AM. Reason: added screenie
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    Default Re: Question, About Core Voltage

    After seeing the temps using IntelBurn I very carefully removed my cooler to check TIM spread and thickness and discovered that the copper portion of the cooler was not coming in direct contact with the cpu, being held slightly higher by the aluminum on either side of the copper pipes of the Xigmatek HDT-S1283. I would lap it but the copper is a lot softer than the aluminum and I think the condition would just continue or be worsened by the process. It looks like I'm in the market for a new cooler.

    Thanks for running those test.

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    Default Re: Question, About Core Voltage

    Lapping on glass shouldn't be a problem should it, I mean both surfaces will be reduced at the same rate so eventually the aluminium will come down to the copper level, you could try draw filing just the aluminium I guess but (working from memory here) doesn't the Xigmatek have four heatpipes? so I am assuming that all 5(?) aliminium dividers are proud?

    I've nothing but praise for the Thermalright Ultra 120 eXtreme when teamed up with a good fan (Scythe Kaze Jyuni 1900rpm/110cfm), it would have to be one of the best coolers I've owned. The base needed lapping though.

    It's better than my Zalman 9700NT and also performs better than my Thermalright IFX-14 which I put down to the extra heatpipe.
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