A8N-SLI premium, amd 4800+ dual core cpu, usb / ethernet problems

[Lynn McGuire]

I have an A8N-SLI Premium motherboard with an AMD 4800+ dual
core cpu. I use an Intel 1Gb NIC due to previous network problems
and the onboard NICs are turned off in the BIOS. I have 2 GB of ram.

I backup my entire LAN (160 GB) to a USB hard drive every Friday
night. The USB hard drive (this week) is a WD 300 GB. Soon after
I start the backup, I start getting error messages from Windows XP
SP2 that it cannot write the G:\MFT$ file on the USB hard drive.

Does anyone know what is going wrong here ?

Thanks,
Lynn

 

[Lynn McGuire]

I have an A8N-SLI Premium motherboard with an AMD 4800+ dual

core cpu. I use an Intel 1Gb NIC due to previous network problems
and the onboard NICs are turned off in the BIOS. I have 2 GB of ram.

I backup my entire LAN (160 GB) to a USB hard drive every Friday
night. The USB hard drive (this week) is a WD 300 GB. Soon after
I start the backup, I start getting error messages from Windows XP
SP2 that it cannot write the G:\MFT$ file on the USB hard drive.

Does anyone know what is going wrong here ?

BTW, this bug only happens when I am copying from a network hard
drive to my USB external hard drive. Windows XP SP2 has
blue-screened on me twice today over this issue. I have given up and
moved the USB hard drive over to my file server pc.

Lynn

 

[Phil DeBecker]

BTW, this bug only happens when I am copying from a network hard
drive to my USB external hard drive. Windows XP SP2 has
blue-screened on me twice today over this issue. I have given up and
moved the USB hard drive over to my file server pc.

Lynn

This almost sounds like something that would happen if the PCI bus
speed were wrong, which at least on my A8N-SLI Premium it seemed to be
by default.

(I posted about this earlier -- basically, it looks as if out of the
box the PCI bus is clocked to some multiplier of the CPU speed, which
in my case was 19mhz, but is probably different on your motherboard
due to your faster CPU).

You might try running ntune and looking at the PCI Bus Clock Speed and
see what that indicates.

If it is not 33mhz or very close to it, go into the BIOS and set the
PCI Clock Synchronization under Jumperfree Settings to 33.33 mhz. Then
run ntune again and verify that the setting is correct.

In my case, in order to get that BIOS setting to actually take effect,
I had to set the Jumperfree Settings to [AUTO] and actually increase
the CPU frequency by 1 mhz. At the default CPU frequency of 200mhz,
the 33.33 PCI frequency setting had no effect. If I change the CPU
frequency to 201 mhz, then the PCI Clock Synchronization setting
works.

Phil D.

 

[Phil DeBecker]

In my case, in order to get that BIOS setting to actually take effect,
I had to set the Jumperfree Settings to [AUTO] and actually increase
the CPU frequency by 1 mhz. At the default CPU frequency of 200mhz,
the 33.33 PCI frequency setting had no effect. If I change the CPU
frequency to 201 mhz, then the PCI Clock Synchronization setting
works.

Whoops. What I meant was, in order to make the PCI Clock
Synchronization setting work, I had to set the Jumperfree settings to
[MANUAL], and increase the CPU frequency by 1 mhz. The PCI Clock
Synchronization setting had no effect when the Jumperfree was set to
[AUTO].

 

[Lynn McGuire]

I have an A8N-SLI Premium motherboard with an AMD 4800+ dual

This almost sounds like something that would happen if the PCI bus
speed were wrong, which at least on my A8N-SLI Premium it seemed to be
by default.

(I posted about this earlier -- basically, it looks as if out of the
box the PCI bus is clocked to some multiplier of the CPU speed, which
in my case was 19mhz, but is probably different on your motherboard
due to your faster CPU).

You might try running ntune and looking at the PCI Bus Clock Speed and
see what that indicates.

How do you get ntune to display the PCI bus speed ?

Thanks,
Lynn

 

[Homer J. Simpson]

How do you get ntune to display the PCI bus speed ?

Thanks,
Lynn

Click on the "i" (Information Page) button on the tool bar.

It's under the "Calculated system performance" section heading.

 

[Lynn McGuire]

How do you get ntune to display the PCI bus speed ?

Click on the "i" (Information Page) button on the tool bar.

It's under the "Calculated system performance" section heading.

Aggh ! Bad user interface design !

My PCI bus is running at 33.000 Mhz. My PCI express bus is running
at 2500 Mhz, my Hypertransport link is running at 1001.1 Mhz, my
memory bus is running at 400.4 Mhz and my cpu speed is 2402.7
Mhz.

All is well ! So this is not my problem.

Thanks,
Lynn