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Overclock Core 2 Duo E6750 (Stock)

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Old 03-24-12, 02:09 PM Thread Starter   #1
xxkmanxx
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Overclock Core 2 Duo E6750 (Stock)


I'm new to overclocking. I have a Core 2 Duo E6750 @ 2.66ghz with a Asus Maximus Formula Motherboard. I want to know what speed I could i get up to with stock cooling. I don't want to overclock that much right now, since I'll only be using stock cooling. I just have a few questions:

1. What is a good and stable temperature for overclocking?
2. What are some good overclocking tools for like stress testing and benchmarking?
3. Is there a good overclocking guide or book anyone could recommend?
4. Is it easy to mess up my CPU?

Thanks



Specs:

CPU: Intel Core 2 Duo E6750 2.66Ghz
Ram: 2x2GB G. Skill F2-8500CL5-2GBPK 5-5-5-15
Ram: 2x2GB OCZ OCZ2P10662G 5-5-5-18
Total Ram: 8GB
PSU: 400 WT PSU
Motherboard: Asus Maximus Formula
Chipset: X38
Southbridge: 82801IR (ICH9R)
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Old 03-24-12, 06:04 PM   #2
Bonka
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Here's a great guide to get you started:
http://www.overclockers.com/forums/s...d.php?t=515316

Personally I would aim to keep a distance of at least 25c between your load temps and TJMAX. I prefer to use Prime95 for stress testing and would consider atleast a 24hr error free run in small, large and blend to be stable.

If you can, try to keep your vcore and vtt down and the best way for that is to overclock incrementally rather than aiming at a certain speed right out of the gate. It's really a lot of trial and error before you figure out your CPU's ceiling. It's ok to use the stock cooler (I do on my E6600) but if temperatures become a problem you'll either need to swap for better cooling or lower your overclock.

I will say that your mismatched 8GBs could very well prevent you of achieving a higher, stable overclock. If you feel that your chip hasn't bottlenecked yet you'll want to try 4GBs instead.

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MAIN Intel C2Q Q9650 (L820B033) @ 4.05GHz (450x9) 1.36875v Gigabyte GA-EP45-UD3P Rev.1.6 (FFb BIOS) ThermalRight Venomous X Noctua NF-P12-1300 x2 G.Skill PI 4x2GB DDR2-1100 @ 1080MHz 5-5-5-15 1.9v Corsair HX850 XFX Radeon HD 6670 Intel 320 Series GEN3 80GB SSD WD Caviar Black 1TB x2 Pioneer BDR-206DBK Auzentech X-Meridian 7.1 2G (LME49720HA Op-Amp) HP 2509b x2 Rosewill RK-9000 Cherry MX Blue Lian-Li PC-9F

SECONDARY Intel C2D E6600 (L631B125) @ 3.15GHz (350x9) 1.4v ASUS P5LD2-VM Rev.2.00G (1401 BIOS) Intel D34017-002 Kingston 4x1GB DDR2-667 @ 700MHz 5-5-5-15 1.8v Corsair CX430 Palit Radeon HD 4850 Crucial M4 Micron C400 64GB SSD WD Caviar Blue 1TB LG GH24NS95 Creative Sound Blaster Audigy SE 7.1 HP w2007 Bitfenix Merc Beta
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Old 03-25-12, 02:19 PM Thread Starter   #3
xxkmanxx
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So my mismatched Ram could hurt my overclock ability?

I have a little memory question. After i added my last set of G. Skill DDR2 RAM i noticed my bios/boot messages/info said DDR2-800 instead of the DDR2-1066 that both sets are, even tho it's set to auto in the bios. Also in CPU-Z it says DRAM Freq. is 400MHz, FSB:DRAM is 5:6. On the timmings table in the SPD tab the OCZ RAM has JEDEC 1,2, and 3; and the G. Skill only has 1 and 2. It says max bandwidth is PC2-6400 (400MHz). Is there something wrong or am I jus over examining everything?

Also what is a good normal temperature, without overclocking? I just want to make sure my temperature isn't already high. Coretemp says TJMAX 95C, Both Cores, MIN 38C MAX ~90C (Prime95 Torture Test). This temp is prob to close to the TJMAX, right? I prob need better fans, i think one is screwy and turns off and on.

Thanks

Last edited by xxkmanxx; 03-25-12 at 02:48 PM.
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Old 03-25-12, 05:45 PM   #4
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You have to manually set the memory timings in the bios, never use auto. Just follow the specs on the box/ram. They could hinder your overclock especially using mixed brands but you won't know until you try.

90c is way too high. You'll have to get those temperatures down first.

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MAIN Intel C2Q Q9650 (L820B033) @ 4.05GHz (450x9) 1.36875v Gigabyte GA-EP45-UD3P Rev.1.6 (FFb BIOS) ThermalRight Venomous X Noctua NF-P12-1300 x2 G.Skill PI 4x2GB DDR2-1100 @ 1080MHz 5-5-5-15 1.9v Corsair HX850 XFX Radeon HD 6670 Intel 320 Series GEN3 80GB SSD WD Caviar Black 1TB x2 Pioneer BDR-206DBK Auzentech X-Meridian 7.1 2G (LME49720HA Op-Amp) HP 2509b x2 Rosewill RK-9000 Cherry MX Blue Lian-Li PC-9F

SECONDARY Intel C2D E6600 (L631B125) @ 3.15GHz (350x9) 1.4v ASUS P5LD2-VM Rev.2.00G (1401 BIOS) Intel D34017-002 Kingston 4x1GB DDR2-667 @ 700MHz 5-5-5-15 1.8v Corsair CX430 Palit Radeon HD 4850 Crucial M4 Micron C400 64GB SSD WD Caviar Blue 1TB LG GH24NS95 Creative Sound Blaster Audigy SE 7.1 HP w2007 Bitfenix Merc Beta
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Old 03-27-12, 04:49 PM Thread Starter   #5
xxkmanxx
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I think I'm going to wait on the OC until i get better cooling / more fans. Now about my memory. Both sets of G. Skill and OCZ are DDR2 1066. I changed the DRAM FREQ value in bios from auto to DDR2 1066 and set my timing to 5-5-5-15. In CPU-Z it still shows DRAM Freq. is 534.3MHz and when i check each slot in the SPD tab it says Max Bandwidth is PC2-6400 (400MHz). What is going on here? Memory should be at 1066MHz, right? or am I jus over thinking this? Thanks.
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Old 03-27-12, 05:43 PM   #6
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533 x 2 =1066 double data rate DDR. Just make sure you get a decent cpu heatsink before you start overclocking. Check the reviews on newegg.

I ran my old E6550 @ 3.22ghz but i had a 7 multi (333x7) where you have an 8 multi so you might be able to get a little higher overclock.

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Old 03-27-12, 06:59 PM Thread Starter   #7
xxkmanxx
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yeah, i got an 8x multiplier. Thanks for the help. Ill prob post back when i get better cooling, fans and heatsink.
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Old 04-11-12, 04:16 PM Thread Starter   #8
xxkmanxx
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Originally I had 2 80mm fans in my case. I replaced 2 and added 2 so now I have 4 80mm fans in my case. I guess my case is kinda old, prob 4-5 years old, and has fan holders so i can't use screws, also i would assume that would be louder then using screws cause it would move around a bit. This probably defeats the purpose of getting the Silenx fans, but whatever. Also i think I'm gonna need a new Power Supply. I needed to unplug 2 fans cause the power supply fan just stopped. Well it is an old Antec 350w, probably came with the case. So I'm thinking of getting this Power Supply Seasonic X Series X650 Gold also in a few weeks I plan on getting this CPU Cooler/Heatsink Cooler Master Hyper 212 Plus. What do you guys think?

CPU: Intel Core 2 Duo E6750 2.66Ghz
Ram: 2x2GB G. Skill F2-8500CL5-2GBPK 5-5-5-15
Ram: 2x2GB OCZ OCZ2P10662G 5-5-5-18
Total Ram: 8GB
PSU: 350 WT PSU
Motherboard: Asus Maximus Formula
Chipset: X38
Southbridge: 82801IR (ICH9R)

Last edited by xxkmanxx; 04-11-12 at 04:27 PM.
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