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Confused with 1.2V HT and CPU VTT


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Hey guys:

 

I am ocing an E6600 on Asus Striker. I heard something about 1.2V HT and CPU VTT has to be raised along with raising NB and SB voltage. But I am confused.

 

1. What are 1.2V HT and CPU VTT?

 

2. Which one of those settings has to be raising in corresponding with raising SB and NB voltage to achieve high FSB? (Like 1.2V HT - SB voltage, CPU VTT - NB voltage, something like that)

 

3. What are the safe or recommended highest values for 1.2V HT, CPU VTT, SB and NB voltage

 

All helps are greatly appreciated. :)

 

Thanks a lot

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  • 2 weeks later...

White Hair,

 

Your CPU VTT is the base voltage that your CPU is set to. Depending on what BIOS revision you are running it can range anywhere from 1.2V to 1.35V at default settings. I'd recommend leaving the CPU VTT at whatever the BIOS default is and use the CPU VID Offset control to bump your CPU voltages for overclocking. The only reason to change the VTT is if you are having trouble booting at your overclocked settings due to low voltage.

 

In my experience the E6600 Conroe will go clear to 3.0 -3.2ghz at stock voltage on the CPU. After that you may need a bump to 1.425 to 1.45 vcore to get up in the 3.4ghz or slightly higher range.

 

A decent overclock may require you to bump your northbridge voltage up to 1.65 or 1.70 volts for stability. As far as HT voltage goes, that option isn't available on my Infinity board, but I believe it is Hyper-Threading voltage. If you are running a Conroe processor I don't believe that is even applicable. It would be for say a Pentium 4 processor, but unless I'm mistaken the Conroe processors do not have Hyper-Threading. If I'm mistaken someone please correct me.

 

Depending on what new board you are considering you may need to add an aftermarket cooling solution to the Northbridge, as they get pretty toasty when overclocking.

 

Here is an excellent overclocking guide for socket 975 boards......

 

http://www.diy-street.com/forum/showthread...rclocking+guide

 

And here's another courtesy of Technodanvan. Very good read......

 

http://www.csd.dficlub.org/forum/showthread.php?t=731

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You're welcome. Hopefully you'll find the board you want. I've always had good luck with most of the GB boards I've used and several are still running in customer's machines.

 

I've read pretty good things about the DQ6, so I'll bet it's a solid choice.

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