Bios setting questions for nForce 570 MB

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Bios setting questions for nForce 570 MB

Postposted on Thu Dec 13, 2007 10:25 am

I have a Foxconn N570SM2AA MB w/ a nForce570SLI chipset.
I haven't kepted up with all the changes in the past 3 or so years and there are plenty of 'new' settings in the Award bios I need an explanation of. Of course the manual is somewhat useless (that hasn't changed over the years).

Ok, what do all of these mean;
1. LDT Voltage Select,
2. PMU function
3. K8<->SB HT Speed (bandspeed of the links xmitter),
4. K8<->MCP55 HT Width (bandwidth of the links xmitter),
5. Onboard Super IO,
6. AC Media Interface,
7. Reset Config Data (whether the system automatically distributes DMA & I/) addresses each time the PC is turned on)
8. Maxium Payload size (max. TLP payload size for PCI-E).

Text in () were taken from the manual. Thanks in advance.
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Postposted on Thu Dec 13, 2007 11:46 am

I would suggest doing a bit of Googling, but here are some answers. As to what they really mean for your motherboard, I don't know.

1. LDT Voltage Select,
That's the voltage for the Hypertransport bus

2. PMU function

Power Management on a Mac, no idea on a PC

3. K8<->SB HT Speed (bandspeed of the links xmitter),

Hypertransport bus speed

4. K8<->MCP55 HT Width (bandwidth of the links xmitter),

Hypertransport bus width

5. Onboard Super IO,

Probably specific to your mobo, but I imagine it has something to do with USB/Firewire/ETc.

6. AC Media Interface,

Onboard sound

7. Reset Config Data (whether the system automatically distributes DMA & I/) addresses each time the PC is turned on)

Resets all DMA and IO ports every boot. Probably a good idea to turn this off.

8. Maxium Payload size (max. TLP payload size for PCI-E).

Data packet size over the PCI-E interface.
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Postposted on Thu Dec 13, 2007 12:06 pm

1. LDT Voltage Select,
What does LDT stand for?
2. PMU function
Power Management on a Mac, no idea on a PC
This is a Windows MB, why would it be there??
3. K8<->SB
What;'s with the "<->"??
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Postposted on Thu Dec 13, 2007 12:14 pm

videobruce wrote:
1. LDT Voltage Select,
What does LDT stand for?
2. PMU function
Power Management on a Mac, no idea on a PC
This is a Windows MB, why would it be there??
3. K8<->SB
What;'s with the "<->"??


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Postposted on Thu Dec 13, 2007 12:20 pm

I have no experiance with Apple. I thought all MAC releated parts were MAC only.
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Postposted on Thu Dec 13, 2007 9:24 pm

Well, LDT means Lightning Data Transport.

PMU , I have no idea. You might have to ask Foxconn.

As for the <--> thing, that means "between". So in the case of "K8<->SB" it's talking about the connection between the CPU (the K8 is code for the Athlon 64) and SB is Southbridge. In particular, it's talking about the Hypertransport link between the CPU and the Southbridge.
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Postposted on Fri Dec 14, 2007 7:22 am

One would think after 8 years, the MB Bios manual would be written better.
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Postposted on Fri Dec 14, 2007 8:39 am

One would also think that somebody would have directed him to the BIOS Optimization Guide at TechARP.com too. Their site isn't loading for me right now, but it's there.
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Postposted on Fri Dec 14, 2007 9:53 am

videobruce wrote:One would think after 8 years, the MB Bios manual would be written better.
Not if it's authored in Asia. It's pretty sad isn't it.
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Postposted on Fri Dec 14, 2007 10:13 am

Example;
CPU Frequency
This option is used to set the CPU Frequency.
:roll:

Yep, I would of never been able to figure that one out with the explanation.
BTW, I think I have seen that site, just haven't been there for awhile.
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Additional Bios boot screen; Press any key.... Can it be dis

Postposted on Fri Dec 14, 2007 11:07 am

Ok, there is a (what I call) a 2nd page that shows the additional IDE controller (nForce5 only has a single controller within the chipset) and the single Optical drive attached. There is also a "Press any key to continue" message with a five (?) second countdown (slowing the boot process up).
Can that be changed?
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