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IS IT TRUE: I hear that PAT is disabled on ALL 875 MB's when Using 5:4 FSB

T

thatsright

Diamond Member
Can someone give me a definite answer on this, if ya know for sure.

I will soon be overclocking my ABIT IC7 and a P4c 2.4 to about 3.0-3.2Ghz, and I've been hearing that when setting the FSB Divider to 5:4, PAT is disabled. But how would I ever know. Is there a setting in the bios that says PAT: enabled/disabled? And I also heard that on any 875 board that if you have all 4 RAM slots filled that PAT is disabled as well.

Does anyone know about this, as buying a new 875 board with PAT is one of the main reasons I am doing so. Thanks

Other ATF Thread about PAT being disabled
 
Originally posted by: Thor86
Tell me what real-world benefit we would get from PAT?
Click to expand...

I'm with you. I see sandra scores going way way way up. However, I fail to see where a bit more memory bandwidth will help apps much. If your memory runs 1:1 your CPU is getting fed all it can use anyway.
 
Originally posted by: thatsright
Can someone give me a definite answer on this, if ya know for sure.

I will soon be overclocking my ABIT IC7 and a P4c 2.4 to about 3.0-3.2Ghz, and I've been hearing that when setting the FSB Divider to 5:4, PAT is disabled. But how would I ever know. Is there a setting in the bios that says PAT: enabled/disabled? And I also heard that on any 875 board that if you have all 4 RAM slots filled that PAT is disabled as well.

Does anyone know about this, as buying a new 875 board with PAT is one of the main reasons I am doing so. Thanks

Other ATF Thread about PAT being disabled
Click to expand...

You need a native 800MHz FSB processor, and the DRAM must be running at 400MHz DDR or faster for PAT to be enabled.
The DualChannel memory controller must be utilized, but it will still funtion regardless of whether all DIMM slots are utilized or not.

 
So you're saying that if you set it to 5:4 but overclock the CPU to 960 (240x4) or more the PAT will be enabled with your DDR running at 480MHz (240x2)?

I think my math is right???
 
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