Hi all, I just installed a FC1 on a NEC Express 5800 / TM1200 Below appears the complete hardware description. The installation completed just fine (I try both, from CD and HTTP) but the problems started upon reboot. The system booted Ok and I performed a yum update to the las updates released ... To this point ... all Ok ... The system was configured to accept XDMCP logins from the local network (using X -query and/or Xnest -query) ... and here appeared all the problems. When I logged in remotely into a gnome/kde/icewm session form other host, at some random time the system juts reboots !!! without any message in any log file (messages, XFree86*, etc) ... the system simply restarts again ... sometimes without doing anything from the remote session !!!. I've tried various NIC's (various models/vendors) without any change in the system behavior. The system BIOS has the ACPI functions disabled. As said, the system configuration is: NEC Express 5800 / TM 1200 I can't find any brand name on the mainboard but the model is 694D Pro Ver: 1.0 Is a dual PIII (socket 370) capable main with one PIII @ 866MHz installed and 768 MbRAM (PC133) Uses VIA Technologies chipset (see sample lspci below). The configuration is completed with 2 Adaptec AHA-2940UW SCSI controllers (BIOS version 1.32) with one Seagate 18 Gb hard disk each, installed in a RAID-1 config. The video controller is server class (only 8Mb video RAM) Nvidia Riva TNT2 and, the ethernet card is an Intel EtherExpress Pro 100. [root@apps02 root]# lspci 00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev c4) 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP] 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22) 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C/VT8235 PIPC Bus Master IDE (rev 10) 00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30) 00:0e.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U (rev 01) 00:0f.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08) 00:12.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U (rev 01) 01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15) [root@apps02 root]# Any clue on the way to debug this will be very appreciated ... I have 4 of this system and need to use Fedora as a corporative policy. Thank you all in advance. josé luis -- Jose L. Beltrami <<beltrami AT netgate DOT com DOT uy>> Ximian Evolution version: 1.4.5 Running on a: Fedora Core release 1 (Yarrow) With kernel release: 2.4.22-1.2174.nptlsmp on a i686 (2 x (GenuineIntel, Pentium III (Coppermine) at 996.735 MHz))