- Joined
- Dec 31, 2004
Quick and probably simple question:
What is it and what is it used for??
What is it and what is it used for??
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AGP Lock
- Thread starter din_the_min
- Start date
- Joined
- Jan 26, 2003
- Location
- Land of 10,000 Lakes
Do you mean the Frequency lock? If so, it is for overclocking to keep the bus speed within specs to prevent instability on you video card and also the PCI bus.
- Joined
- Jan 26, 2003
- Location
- Land of 10,000 Lakes
Usually it is referring to the PCI and AGP lock. It means that no matter what FSB you are running, the PCI and AGP bus speeds are still in spec. Usually it is set to 66mhz AGP / 33mhz PCI.
The base agp bus speed is 66 and pci is 33. If your computer is stock at 166 FSB, they are related to the FSB speed by the ratio of 5:2:1.Without a lock to keep their speeds at spec., they will go up whenever the FSB is increased (when overclocking). This will often create problems because some components and vid cards can't handle the increase in speed. So, to get a decent o/c, you need a motherboard with agp/pci locks.
Last edited:
- Joined
- Feb 20, 2001
garste said:The base agp bus speed is 66 and pci is 33. If your computer is stock at 166 FSB, they are related to the FSB speed by the ratio of 5:2:1 (FSB:agpci). Without a lock to keep their speeds at spec., they will go up whenever the FSB is increased (when overclocking). This will often create problems because some components and vid cards can't handle the increase in speed. So, to get a decent o/c, you need a motherboard with agp/pci locks.
This is right on the money. ^^^
Lock your AGP and PCI bus speeds so you can freely increase FSB without causing issues with AGP and PCI devices (such as data integrity errors like hard disk corruption) and it also stops them limiting how far the FSB is increased.
- Joined
- Sep 12, 2004
i learns new stuffs eferyday
- Joined
- Dec 31, 2004
- Location
- Australia
David said:
So to ensure it's locked, what should one do?
My selections are: Auto, 50 - 100 Hz, and the "Auto" is the default setting.
- Joined
- Feb 20, 2001
Jumpin Jack said:So to ensure it's locked, what should one do?
My selections are: Auto, 50 - 100 Hz, and the "Auto" is the default setting.
I've never messed with a AGP lock board hands on, but I would guess Auto means that increases with FSB (bad) so you want to set it to 66MHz for AGP and 33MHz for PCI.
- Joined
- Dec 31, 2004
- Location
- Australia
David said:
Dave,
The ASUS manual states: "The default, (AUTO) permits automatic selection of optimal AGP frequencies."
I'll try it at 66Mhz, thanks......
- Joined
- Aug 30, 2004
- Location
- Santa Barbara, CA
You should see the feature in the BIOS. Browse through the BIOS menues to find it. It is usually under System Frequency/Voltage configuration.
- Joined
- Dec 31, 2004
- Location
- Australia
ILR said:
Look here, (for my board anyway)...
http://au.asus.com/prog/spec.asp?m=A7N8X-E Deluxe&langs=25
Under the section of Overclocking
