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Thread: Anyone remember how hot your northbridge got when OC'ing with 775 systems? Max vcore?

  1. #1
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    Anyone remember how hot your northbridge got when OC'ing with 775 systems? Max vcore?

    Been toying with my old socket 775 sytem and I've been able to get this E6750 up to 3.68 Ghz (fsb 460x8) with 1.5 vcore. Temps never go over 60C. However Prime freezes and I'll get a reboot. I give the fsb a 0.1 v boost in power as well. No other changes.

    1. What's the highest vcore I can go on air?
    2. Am I just hitting a wall with this cpu or do you think cooling the NB would help?

    I have an old 92mm Vantec Tornado I might strap on to the NB attatched to an old Superflower Fanmaster controller.
    New rig: INWIN D-Frame, i7 4770k @ 4.7 Ghz/1.38V, Swiftech H220, MSI Z87-GD65 Gaming, Team Vulcan DDR3 1600, 9-9-9-24, Samsung 840 pro 256GB, EVGA GTX 780, Corsair 850W
    Old rig:Antec 900/GIGABYTE GA-X38T-DQ6
    E6750 @ 3.5 GHz/Thermalright 120 extreme/MX2
    CORSAIR Vengance 8GB
    PNY 8800GT/Thermalright HR-03 GT

    Old, old rig: FX-53/GIGABYTE K8NSNXP-939 nForce3 Ultra/1GB CORSAIR 3200XLPRO
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  2. #2
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    I could never get my e6750 past 3.6. Mine has been running at 3.4 27/7 for years now, still works!
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  3. #3
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    You might be hitting the limit for your chip BUT I do remember that I was able to squeeze out a little more overclock and Prime95 stability by attaching a small fan to the northbridge of my Gigabyte P35 DS3 back in the Conroe/Penryn days.

    Come to think of it I think I have an old shot of my e6750 at 3.6ghz@1.44v on an Asus board:

    http://i246.photobucket.com/albums/g...750orthos1.jpg
    Last edited by LagunaX; 05-28-2013 at 10:32 PM.
    i7-2600k L041C108 4.8ghz 1.32v PLL off Venomous-X Push/Pull http://www.xtremesystems.org/forums/...postcount=1063
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  4. #4
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    Gonna put a fan on the NB and see how that goes.

    I do have the opportunity to get an X3380 for a decent price if I "accidentally" kill this chip lol
    New rig: INWIN D-Frame, i7 4770k @ 4.7 Ghz/1.38V, Swiftech H220, MSI Z87-GD65 Gaming, Team Vulcan DDR3 1600, 9-9-9-24, Samsung 840 pro 256GB, EVGA GTX 780, Corsair 850W
    Old rig:Antec 900/GIGABYTE GA-X38T-DQ6
    E6750 @ 3.5 GHz/Thermalright 120 extreme/MX2
    CORSAIR Vengance 8GB
    PNY 8800GT/Thermalright HR-03 GT

    Old, old rig: FX-53/GIGABYTE K8NSNXP-939 nForce3 Ultra/1GB CORSAIR 3200XLPRO
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  5. #5
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    Wow, a Xeon X3380 is still $250 on eBay but is probably the best chip made for socket 775 with it's 9.5x multiplier, 12mb L2 cache and 4.0ghz 24/7 FSB OC on high end air.
    Funny, the e6750 is only $20 by comparison.
    The best socket 775 chip I still keep is an e8500 rock stable at 4.5ghz.
    It was starting to show it's age when i3-540 Clarkdales could easily hit 4.6ghz with HT.
    But then Sandy Bridge came along and anybody without any OC skill could get 4.5ghz on a quad with or without HT easy...
    i7-2600k L041C108 4.8ghz 1.32v PLL off Venomous-X Push/Pull http://www.xtremesystems.org/forums/...postcount=1063
    Asus P8P67 Vanilla
    Samsung 30nm MV-3V4G3D/US 2x4GB @ 9-10-10-28 1T DDR3 2133 1.6v http://www.techpowerup.com/forums/sh...d.php?t=159320
    Diamond HD 7970
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    Q822A549 E8500 @ 4.5ghz air TRUE @ http://www.xtremesystems.org/forums/...d.php?t=203762

    G.Skill F3-12800CL6D-4GBXH @ 7-10-8-27 1T DDR3 2133 1.6v http://www.xtremesystems.org/forums/...d.php?t=266839

  6. #6
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    my dfi x38 LT and e6850 doing 1.6V NB with 1146mhz ram did about 70c and was not stable with air (on the rather large dfi lt cooler) so i had to liquid cool it and it stayed under 40c to keep stable.
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  7. #7
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    Quote Originally Posted by LagunaX View Post
    Wow, a Xeon X3380 is still $250 on eBay but is probably the best chip made for socket 775 with it's 9.5x multiplier, 12mb L2 cache and 4.0ghz 24/7 FSB OC on high end air.
    Funny, the e6750 is only $20 by comparison.
    The best socket 775 chip I still keep is an e8500 rock stable at 4.5ghz.
    It was starting to show it's age when i3-540 Clarkdales could easily hit 4.6ghz with HT.
    But then Sandy Bridge came along and anybody without any OC skill could get 4.5ghz on a quad with or without HT easy...
    I saw that a few days ago but do I really want to part with $250 when I can get 4 Ghz with a cheap $30 E8400?
    New rig: INWIN D-Frame, i7 4770k @ 4.7 Ghz/1.38V, Swiftech H220, MSI Z87-GD65 Gaming, Team Vulcan DDR3 1600, 9-9-9-24, Samsung 840 pro 256GB, EVGA GTX 780, Corsair 850W
    Old rig:Antec 900/GIGABYTE GA-X38T-DQ6
    E6750 @ 3.5 GHz/Thermalright 120 extreme/MX2
    CORSAIR Vengance 8GB
    PNY 8800GT/Thermalright HR-03 GT

    Old, old rig: FX-53/GIGABYTE K8NSNXP-939 nForce3 Ultra/1GB CORSAIR 3200XLPRO
    X800XTPE/WD 74GB Raptor/250GB Caviar

  8. #8
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    Not at all, that would be stupid money to spend, especially when a i7-3770k is $229 at Microcenter.
    Even the lowly i3-2100 is as powerful as a q9650.
    The Penryn e8xxx series were my favorite before Sandy Bridge converted me to quad core.
    i7-2600k L041C108 4.8ghz 1.32v PLL off Venomous-X Push/Pull http://www.xtremesystems.org/forums/...postcount=1063
    Asus P8P67 Vanilla
    Samsung 30nm MV-3V4G3D/US 2x4GB @ 9-10-10-28 1T DDR3 2133 1.6v http://www.techpowerup.com/forums/sh...d.php?t=159320
    Diamond HD 7970
    WD 600GB Velociraptor
    Corsair TX750W
    CM 690 II Advanced

    Q822A549 E8500 @ 4.5ghz air TRUE @ http://www.xtremesystems.org/forums/...d.php?t=203762

    G.Skill F3-12800CL6D-4GBXH @ 7-10-8-27 1T DDR3 2133 1.6v http://www.xtremesystems.org/forums/...d.php?t=266839

  9. #9
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    I don't remember voltages, but I remember running my E6750 at 500x7 24/7 under a big ol' Big Typhoon on an Asus P5K-E.

  10. #10
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    Quote Originally Posted by LagunaX View Post
    Not at all, that would be stupid money to spend, especially when a i7-3770k is $229 at Microcenter.
    Even the lowly i3-2100 is as powerful as a q9650.
    The Penryn e8xxx series were my favorite before Sandy Bridge converted me to quad core.
    Good point! That's where I got my i7 from too!

    Quote Originally Posted by Kain665 View Post
    I don't remember voltages, but I remember running my E6750 at 500x7 24/7 under a big ol' Big Typhoon on an Asus P5K-E.
    Trying to get a 500 fsb but I don't think this mobo likes it. Maybe if I had an X48T or an EX38T. We'll see. Gonna play some more tonight.
    New rig: INWIN D-Frame, i7 4770k @ 4.7 Ghz/1.38V, Swiftech H220, MSI Z87-GD65 Gaming, Team Vulcan DDR3 1600, 9-9-9-24, Samsung 840 pro 256GB, EVGA GTX 780, Corsair 850W
    Old rig:Antec 900/GIGABYTE GA-X38T-DQ6
    E6750 @ 3.5 GHz/Thermalright 120 extreme/MX2
    CORSAIR Vengance 8GB
    PNY 8800GT/Thermalright HR-03 GT

    Old, old rig: FX-53/GIGABYTE K8NSNXP-939 nForce3 Ultra/1GB CORSAIR 3200XLPRO
    X800XTPE/WD 74GB Raptor/250GB Caviar

  11. #11
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    uhh we need to specify what chipset we're talking about, wasnt P35 90nm & P45 60nm? massive difference in temps/voltage

    as for temp readings, DFI was the only one that had a NB temp sensor right?

    i've been debating if i should try OC'ing more since i'm hitting too many cpu limited situations these years
    Antec 900 - Asus P5Q-E - Q9550 C0 with Cooler Master Hyper 212 - 2x2gb OCZ Reaper - Sapphire 4870x2 - 2x640gb 7200.11 - Samsung 216D burner - BenQ FP241VW 24"
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  12. #12
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    X38T which I believe is 90nm.
    New rig: INWIN D-Frame, i7 4770k @ 4.7 Ghz/1.38V, Swiftech H220, MSI Z87-GD65 Gaming, Team Vulcan DDR3 1600, 9-9-9-24, Samsung 840 pro 256GB, EVGA GTX 780, Corsair 850W
    Old rig:Antec 900/GIGABYTE GA-X38T-DQ6
    E6750 @ 3.5 GHz/Thermalright 120 extreme/MX2
    CORSAIR Vengance 8GB
    PNY 8800GT/Thermalright HR-03 GT

    Old, old rig: FX-53/GIGABYTE K8NSNXP-939 nForce3 Ultra/1GB CORSAIR 3200XLPRO
    X800XTPE/WD 74GB Raptor/250GB Caviar

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