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Beginner here, need to know about BCLK overclocking on SB.

post #1 of 9
Thread Starter 
I have purchased an H61 chipset board(GA-H61M-USB3-B3 rev.2.0) to build my gaming rig along with an i5-2400 which I will get in a fortnight's time. Although I have an HD6770 video card and 8GB of DDR3-1333 RAM, I may eventually hit a wall where the CPU may bottleneck, meaning I might have to resort to overclocking.

H61 chipset boards cannot increase CPU multiplier even on -K number SB processors, but I have heard that you can increase the BCLK to get a mild overclock.

Thermals may not be a problem, as I have an H40 water cooler. But what do I need to consider when fiddling with BCLK?

I know that:
BCLK affects the clock in the CPU, RAM and PCI-e buses.
Higher clocks might need higher voltage to keep it stable(must not go over limit voltage which I don't know)

What else will I need to consider? Is it worth the trouble and risk?

Thanks in advance.
Edited by Comokanu - 3/27/12 at 3:31pm
post #2 of 9
BCLK overclocking for SB Chips isn't worth it at all. You risk damaging all your parts. for nothing more than a 3-5% gain. And the highest you can reach is 3.2 Ghz by doing that

The safest route to go is to buy a P67 Board or a Z68 board. Your processor isn't completely locked. i think you can OC to 3.4GHz or 3.5GHz by raising the multiplier.
As far as voltages go you won't really need to change them much. I would just raise it above stock by .010-.015 if your system can't sustain those clocks with stock voltages.
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SlowGrow
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post #3 of 9
Thread Starter 
Thanks for the quick reply, I understand. I guess there is little difference in OC-ing by 100MHz so I'll stay well away from BCLK meddling.

I heard about a program that can change Intel's Turbo Boost multipliers from within Win 7 from another forum, I'll go find it now but does anyone recognise it?
post #4 of 9
BCLK is highly unrecommended Yields very low increase at a very high potential for damage. There is a reason they made the "K" CPU's intel isnt stupid and they know BCLK OCing can cause damage hence K cpu's having multiplier unlocked. Sandy OCing is all about the multiplier. I would not recommend BCLK OCing. As the memory controller is onboard on sandy the North Bridge. Kinda changes the game up.
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Gaming Rig
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Intel i5-2500k @ 4.6 GHZ ASUS P8Z77-V PRO XFX AMD 6970 2GB CORSAIR VENGENCE DDR3 16 GB 1600mhz 9 9 9 24-2R 
Hard DriveHard DriveHard DriveOptical Drive
Western Digital 7200 rpm 500 gb (Storage)  CRUCIAL M4 64 GB SSD SATA III (Boot Drive) External 1 TB Western Digital HDD ASUS DVD-RW 
CoolingOSMonitorKeyboard
ZALMAN CNPS9900MAX Windows 7 Ultimate 64 Bit Acer 1920 x 1080 23 inch Razer BlackWidow 2013 Ultimate Mechanical keybo... 
PowerCaseMouseMouse Pad
CORSAIR 650 Watt ANTEC 900 Razer NAGA Razer Kabuto 
AudioOther
Logitech G930 and some speakers. USB Drives Oh and a surge protector to prevent ... 
CPUMotherboardGraphicsRAM
Intel Celeron Dual Core G530 @ 2423 MHZ ASUS P8Z68-V PRO EVGA 550 Ti G.SKILL Ripjaws Series 4GB DDR3 1600 MHZ 9-9-9-24 
Hard DriveOptical DriveCoolingOS
250 GB 7200 RPM Western Digital LG DVD RW You don't wanna know. Win 7 64 
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post #5 of 9
I advise you to stay away from Programs that Overclock your CPU within Windows/or programs that spoof your CPU to think that's its under load to keep it at turbo. You can compromise your systems stability. And it might have an affect on your CPU or motherboard. I wouldn't gamble. If you want to stick with your H61 motherboard just leave it be. you don't want to cause damage to it.
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ASUS 23.6 LCD Moniter 1920x1080 Resolution Logitech 920 Ultra Thin Illuminated Keyboard Thermeltake 750W Modular Power Supply Cooler Master HAF 912 
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post #6 of 9
Thread Starter 
That is a good point, and seeming as it is my first build I should stay away from doing anything that poses a high risk to my components.

I'm sure I'll enjoy using the new machine anyway, I've been working on an old Pentium 4 laptop, so I will see a significant increase in performance and my productivity as a result.

The Corsair cooler should keep my CPU temps happy and keep it lasting longer and the GPU will play most games with decent quality with my monitor.

Thanks for all of the responses.
post #7 of 9
I don't think you will bottleneck your GPU with that CPU.
post #8 of 9
Thread Starter 
I was thinking if the CPU will bottleneck or not.
post #9 of 9
I meant that your GPU will cause a bottleneck before your CPU.
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