I built an old school computer with all new parts about 8 months ago. Recently I have been having trouble with waking up the onboard NIC after I have been away for an hour or so. A reboot always solves the problem. If I allow the computer to go into standby mode I cannot get it to wake up at all. I have to shut it down manually and restart. Yesteday I flashed the BIOS to the latest version and updated the LAN driver. Still I have the problem. My AMIBIOS version is K7s41GX P2.70. All power settings are at the default. Windows XP sp/2 power settings are . Turn off monitor after 20 min. Turn off hard drive after 45 min. System stand by after 1 hour. Hibernate after 3 hours. I know that device drivers can cause problems with ACPI. As far as I can tell they are all up to date. I have an open PCI slot and maybe I should try a new NIC card. The onboard NIC is on the HCL and works fine when it is woke up. I don't want to have to reload Windows. Any suggestions? Here is what is in the box. ASRock K7S41GX MB, Athalon XP+2600,w Thermalright S-97H/92mmPanaflow,1gig(2X512) OCZ 3200 Performance memory, 1 80gb WD ATA 100 HD, Liteon 16XDVD, BenQ Burner, FDD, 460W INWIN PS, INWIN Matx case, Radeon X800 with AC VGA Cooler, Dell Ultra Sharp 1907FP display, XP SP/2,ZoneAlarm Firewall and AV. Runs great, stays cool, just has this wake up problem.