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e6750 need help to oc to 3.2 ghz

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post #1 of 18 (permalink) Old 05-14-2018, 01:11 PM - Thread Starter
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e6750 need help to oc to 3.2 ghz

Edit: Burning the cpu is not important as long as it works stable to its dying breath.
Ok i need help
I have a e6750 and 4 gb ocz 800mhz ddr rams- 2 different but similar pairs-.
As the pictures shows at this rates my pc runs ok.

But when i make 3.2 ghz even with rams deafult modes my pc can't even stand prime95 10 minutes.

I heard people reach 3.6 ghz without even touching VCORE volts.


I am using a mediocre cpu cooler with a very low quality termal paste.
I have a 460 W 12 year old psu, 8800 gt, using dual monitor.

So;

What am i missing, uncle?
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Last edited by Xentios; 05-14-2018 at 01:16 PM.
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post #2 of 18 (permalink) Old 05-14-2018, 01:18 PM
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it's been ages since I overclocked a Conroe CPU, but I'm 99.99% sure no one hit 3.6Ghz on stock voltage. Some chips didn't even hit 3.6. My old E2140 was stuck at 3.0 while my E6300 needed 1.425v to hit 3.6.




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post #3 of 18 (permalink) Old 05-14-2018, 01:34 PM - Thread Starter
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Thank you for the detailed examples.

I am already using 1.4125 V , what should be my max when increasing it? 1.5? Also should i mess with other voltages? I never even heard NB volt anywhere.

edit: Ok nb is north bridge but still did not find any information about changing it.

Last edited by Xentios; 05-14-2018 at 02:06 PM.
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post #4 of 18 (permalink) Old 05-14-2018, 02:22 PM
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I'd keep vCore under 1.45v on air.

I don't really remember what NB voltage I ran, but I'm thinking 1.4v?

Just keep an eye on temps of the NB. I remember yanking the NB heatsink off and putting new paste. Seeing as it's a 10+ year old platform it might not be a bad idea to do that depending on temps. Keep airflow going over it and you should be fine if you're just going for a final hoorah run though

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post #5 of 18 (permalink) Old 05-14-2018, 02:32 PM - Thread Starter
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Thank you for the replies. İ will test more and will share results.

I never even thought about putting new paste to heatsinks of NB and SB. Mindblow everyday!
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post #6 of 18 (permalink) Old 05-14-2018, 02:55 PM - Thread Starter
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I made cpu core 1,35 V

which in windows goes min=1,328 max=1,376. Still stable. I think my problem is not vcore volt.

I just want 200 mhz more : (
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post #7 of 18 (permalink) Old 05-14-2018, 03:03 PM
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Did you adjust NB voltage at all?

FSB holes were a thing on LGA 775 too. Sometimes 420 FSB would be stable but 410 wouldn't.

Try dropping the multi by one and increasing the FSB and see if it still has stability issues. Would mean something other than CPU is your issue.

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
AMD X4 960T Zosma @ X6 4870mhz (+62.3%)
Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
Intel i5 6400 Skylake @ X4 4588mhz (+69.9%)
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(10 items)
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Motherboard
AsRock Z390 Taichi
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G.Skill DDR4 4133 32GB
Hard Drive
Mushkin Pilot NVMe 1TB
Hard Drive
HP EX950 NVMe 2TB
Hard Drive
Samsung 860 Evo 1TB
Hard Drive
Toshiba X300 5TB
Hard Drive
Western Digital EZRZ 3TB
Power Supply
Seasonic Focus Plus Gold 750w
Cooling
Corsair H115i Pro
Cooling
Raijintek Morpheus II
Case
Fractal Design Meshify S2
Operating System
Windows 10 Education x64
Monitor
Acer XF270HU 27" 1440p
Monitor
LG 24UD58 24" 4K
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Philips Fidelio X2
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CPU
i3 8109U
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post #8 of 18 (permalink) Old 05-14-2018, 03:30 PM - Thread Starter
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Well increasing NB volt looks like helping but my board temperature was going above 80 degree fast. I think i need to change termal paste at NB. Also now my pc is not stable for a reason. Anyways thank you for the help "The Pook". That really means a lot.
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post #9 of 18 (permalink) Old 05-14-2018, 03:36 PM
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no worries! wish I could help more, I haven't had a 775 system in years.

new paste and throw a fan over it. should cool the NB down plenty

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
AMD X4 960T Zosma @ X6 4870mhz (+62.3%)
Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
Intel i5 6400 Skylake @ X4 4588mhz (+69.9%)
2 OP pls nerf
(24 items)
NUC U
(10 items)
CPU
i9 9900K
Motherboard
AsRock Z390 Taichi
GPU
MSI GTX 1080 Ti
RAM
G.Skill DDR4 4133 32GB
Hard Drive
Mushkin Pilot NVMe 1TB
Hard Drive
HP EX950 NVMe 2TB
Hard Drive
Samsung 860 Evo 1TB
Hard Drive
Toshiba X300 5TB
Hard Drive
Western Digital EZRZ 3TB
Power Supply
Seasonic Focus Plus Gold 750w
Cooling
Corsair H115i Pro
Cooling
Raijintek Morpheus II
Case
Fractal Design Meshify S2
Operating System
Windows 10 Education x64
Monitor
Acer XF270HU 27" 1440p
Monitor
LG 24UD58 24" 4K
Keyboard
CoolerMaster MasterKeys Pro S
Mouse
Logitech G502
Mouse
Glorious Model D
Audio
Klipsch PowerGate + FiiO E10K
Audio
Micca RB42
Audio
Philips Fidelio X2
Audio
Philips SHP9500S
Audio
Audio Technica ATH-M50X
CPU
i3 8109U
Motherboard
Intel NUC8i3BEH
GPU
Iris Plus 655
RAM
Kingston 8GB DDR4 2400
Hard Drive
Dierka K1 120GB
Hard Drive
ADATA SU800 128GB M.2
Operating System
Windows 10 Professional
Operating System
MX Linux
Keyboard
Dierya DK63-BT 60% (Outemu Blue)
Mouse
Logitech G603 Wireless
CPU
i7 860
Motherboard
Advantech AIMB 280 ITX
GPU
EVGA GTX 950 2GB
RAM
Kingston 2GB DDR3 1333
Hard Drive
Seagate Momentus 2.5" 500GB
Hard Drive
Western Digital Blue 2.5" 320GB
Power Supply
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Cooling
Arctic Alpine 11 GT 2
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post #10 of 18 (permalink) Old 05-17-2018, 02:27 PM - Thread Starter
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Using 1 dolar cheap termal paste. ZP-360

Progress info:
North bridge did not have any termal paste. There was some kind of -glued metal part- on the heat sink. Some kind of thing that take the shape of the chip by force. Applied some termal paste on it.

Now max temp is =78 for prime95 load.(instead of 80+)

South bridge was so bad. The old termal paste was not even spread(-ed ) half of the chip in factory and was also very old and dry as expected. Cleaned it, applied very much new cheap paste since it was very big chip. Sadly have no info about degrees.

I mixed some cables in reassembly and now my reset button is power. Will change that. Also mixed up sata cable orders so boot is now ****ed.

Well at least she is still working! Yay!
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