A
André Lehmann
Hello all,
I run WindowsXP(SP3) on a AsRock P4i65G mainboard, PIV-2.8G CPU, one
SATA HDD. Additionally to an onboard network controller (RTL8139) a
PCI card (RTL8169) is installed. The latter one is active. After
installation the system ran smoothly for months.
For the last two weeks, without known system changes, I have observed
a CPU usage of 50% which is attributed to hardware interrupts by
Sysinternals Process Explorer. The entire system runs slower, more or
less drastically.
BIOS version is up to date, so are drivers etc. No event protocol
messages with this respect.
I removed the AGP display adapter and used the onboard chip - no
success.
I checked the IDE mode and found UDMA5.
I tried to use the MS recommended driver checking tool "verifier.exe",
but it leads to a reproducable BSOD during boot.
I have three OS installed at this computer: W2K, WXP and Windows7
(Beta). This hardware interrupt behaviour does not occur using W2K,
Windows7(Beta) nor W-XP (Safe mode). May I assume from this that
hardware is working properly?
A workaround that I cannot explain: RTL8169 (NIC1) is connected to a
LAN, RTL8139 (NIC2) has no cable attached. When I use device manager
to disable NIC2 - no change. If I re-enable NIC2 immediately, hardware
interrupts go down to zero and remain so until next reboot.
How could I perform this automatically similar to "net start/stop
(service)"?
Any ideas for the reason of these hardware interrupts?
Thank you in advance
Andre Lehmann
I run WindowsXP(SP3) on a AsRock P4i65G mainboard, PIV-2.8G CPU, one
SATA HDD. Additionally to an onboard network controller (RTL8139) a
PCI card (RTL8169) is installed. The latter one is active. After
installation the system ran smoothly for months.
For the last two weeks, without known system changes, I have observed
a CPU usage of 50% which is attributed to hardware interrupts by
Sysinternals Process Explorer. The entire system runs slower, more or
less drastically.
BIOS version is up to date, so are drivers etc. No event protocol
messages with this respect.
I removed the AGP display adapter and used the onboard chip - no
success.
I checked the IDE mode and found UDMA5.
I tried to use the MS recommended driver checking tool "verifier.exe",
but it leads to a reproducable BSOD during boot.
I have three OS installed at this computer: W2K, WXP and Windows7
(Beta). This hardware interrupt behaviour does not occur using W2K,
Windows7(Beta) nor W-XP (Safe mode). May I assume from this that
hardware is working properly?
A workaround that I cannot explain: RTL8169 (NIC1) is connected to a
LAN, RTL8139 (NIC2) has no cable attached. When I use device manager
to disable NIC2 - no change. If I re-enable NIC2 immediately, hardware
interrupts go down to zero and remain so until next reboot.
How could I perform this automatically similar to "net start/stop
(service)"?
Any ideas for the reason of these hardware interrupts?
Thank you in advance
Andre Lehmann