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Overclocking my OEM desktop (Core 2 Duo E6700)

post #1 of 14
Thread Starter 
I plan to overclock my Core 2 Duo E6700(2.66GHz) to 3.33GHz. This is a OEM desktop from Acer and the model is Acer Veriton 7900pro. I have done a few upgrades to it. The PLL is ICS9148BF-26. I have tried clockgen, set fsb, systool but they didn't work. I had a look in the BIOS but i couldn't change anything and it is basic. Specs of the computer: http://speccy.piriform.com/results/bNFZqcnT4OFq6xrKZl6aLnb . Have a look in the CPU and the motherboard section which i think would give you the voltages or something like that.
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Mike's Rig
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post #2 of 14
So how are you planning to do it? OEM PCs don't expose overclocking in their BIOS, and if software didn't help, there's not much you can do unless you want to try BSEL pin mods.
post #3 of 14
Thread Starter 
Maybe the easiest and the safest way?
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Mike's Rig
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AMD Phenom II X6 1090T Black Edition Gigabyte GA-990FXA-D3 Rev. 1.0 Asus EAH6950 DCII/2DI4S/1GD5 Crossfired G.Skill Ripjaw X F3-12800CL9D-8GBXL 
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Western Digital Caviar Black 1TB Pioneer DVR-219L Noctua NH-D14 Windows 8 Pro 64bit 
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post #4 of 14
What I mean is, as most OEM boards/BIOS don't allow overclocking, if you tried software overclocking and it didn't work, there's next to no other way. You can look up BSEL mods, but that's about it.

That basically involved physically removing the CPU, linking certain contact pads ("pins") together, and making the CPU giving the motherboard a command to run it a higher FSB. You need to make sure 1) you can do this, 2) the motherboard supports the FSB you want it to run, 3) the cooling can take it, and 4) that the stock voltage can run it (if not, guess what, there's BSEL tricks for raising voltage if your motherboard can't).

The Core 2 Duo E6700 has a FSB of 1066MHz (266MHz quad pumped). If the motherboard supports it, you're looking at aiming for a 1333MHz FSB (333MHz quad pumped). As your multiplier is 10, this will give you a speed of 3.33GHz (coincidence you were aiming for that?). I don't know if the CPU will do that at stock voltage or not. If not, look up 333MHz FSB BSEL via Google and see what you find. If it can't do it at stock, it's reversible by physically removing the connection. Just make sure you bridge the right contacts/"pins" though.
post #5 of 14
I found this.

attachment.php?attachmentid=75201&stc=1&d=1206653163

You want to bridge the two Blue ones. If the motherboard supports 333/1333MHz FSB speed and if it'll do those speeds at stock voltages (some E6600/E6700/E6750 owners would know, I don't know if it will or not), then it looks promising.

Just watch temperatures. What are they like now?
Edited by Princess Garnet - 3/31/11 at 2:39am
post #6 of 14
Thread Starter 
I don't think i can do that unfortunately.
Mike's Rig
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Mike's Rig
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post #7 of 14
Other than software, I think that's unfortunately the only other way.
post #8 of 14
Thread Starter 
Unless you can help me use the overclocking software properly which i had no idea to use and i adjusted random things:mellowsmi
Mike's Rig
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AMD Phenom II X6 1090T Black Edition Gigabyte GA-990FXA-D3 Rev. 1.0 Asus EAH6950 DCII/2DI4S/1GD5 Crossfired G.Skill Ripjaw X F3-12800CL9D-8GBXL 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 1TB Pioneer DVR-219L Noctua NH-D14 Windows 8 Pro 64bit 
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Mike's Rig
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Black Edition Gigabyte GA-990FXA-D3 Rev. 1.0 Asus EAH6950 DCII/2DI4S/1GD5 Crossfired G.Skill Ripjaw X F3-12800CL9D-8GBXL 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 1TB Pioneer DVR-219L Noctua NH-D14 Windows 8 Pro 64bit 
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post #9 of 14
Ive Overclocked a school Acer OEM, it had a E7500 and VERY VERY limited BIOS options, I couldn't change Vcore but I could change RAM Timings, FSB, Speedstep. I could get 3.5ghz and still post..
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Black Pearl
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Intel 2500k 3103B297# 4.7ghz@1.408v AShitRock Z77 Extreme 4 (No.2) ATI Gigabyte 7870HD Crossfire 16GB Corsair XMS3/Kingston 1600mhz, 9-8-9-24-1T... 
Hard DriveHard DriveHard DriveOptical Drive
WD Caviar Green 1TB X2 (Boot/Storage), Seagate ... Seagate Barracuda 7200.12 500GB (Backup) 2X Seagate Barracuda's 7200.7 60GB (Scratch) 2X Super Ritemaster CD/DVD 
CoolingCoolingOSMonitor
Noctua NHC14 P/P 200mm Front, 200mm Top, 120mm Side, 120mm Exhau... Windows 7 Ultimate 64 Bit G2220HD 21.5" BenQ at 1920X1080 
KeyboardPowerCaseMouse
Razer Blackwidow Ultmate BF3 Ediiton OCZ ZX 850w PSU HAF912A w 120mm Side fan Razer DeathAdder 3.5G 
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post #10 of 14
Upgrade, or just get a non OEM version of the board will give you many more options.
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