Hier nog wat info uit de MSI FAQ voor de 865/875 Neo borden:
Q: What is MAT?
Memory Acceleration Technology. More to read here! Please read all to get the whole idea. You should have the idea what actually it is.
Q: Then what is PAT?
This is what I found in the forum, written by Assaf.
quote:
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Here's what I understand about PAT.
As you may or may not know adding pipline stages to any execution unit will allow you to run it at a higher frequency but it will increase the latancy from start to end (measured in clock pulses).
Now, in order to ensure reliable operation at 800MHz FSB intel added 2 pipline stages to the memory controller (as based on the original dual memory controller in the E7205 chipset)
This they called i865PE and it will only put into action these 2 stages when 800MHz FSB is applied (which it needs the bios to tell it is the case)
Intel take the better yealdes of 865PE and validate them for 800MHz with the 2 extra stages disabled.
These they call 875P.
A 875P bios with PAT enabled simply does not "tell" the chipset it it running at 800MHz so the extra stages are inactive thus reducing latancy relative to a situation where these stages were activated.
A hacked 865PE bios will simply follow the 875P bios rule of not notifing the chipset it is running at 800MHz.
PAT is not an optimization, it's a de-un-optimization
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5. RAID
Q: Can Promise RAID support 2 PATA + 2 SATA = total of 4 HDDs for a single RAID array? RAID-0? RAID-1? RAID-0+1?
Yes, Promise RAID support 2 PATA + 2 SATA (RAID-0 or RAID-1 or RAID-0+1)
Q: Does ICH5R's SATA controller support RAID?
Yes, but only ICH5R, not ICH5. And only RAID-0. RAID-1 is currently not supported
Q: My HDD LED doesn't lit!!!
As what I have been told that the HDD LED only lit when there are activities in IDE Primary and Secondary channels. No support for ICH5's SATA and/or Promise SATA activities yet. In other words, the HDD LED will not lit and indicate any activities for your SATA drives.
6. Onboard Sound
Q: My onboard sound lost after I overclock the system!
Goto BIOS setup and lock AGP/PCI to 67/33.