I have an old Acer T160 and it used to run Windows XP. But I keep getting random BSOD's. I keep seeing IRQ conflicts. I tried to run ubuntu, which runs and keeps running. But sometimes is not responding. Also there are these popups at ubuntu 12.04 that my network cable (which is onboard) is unplugged. But I have no cable in it! and have an usb dongle for wifi. which also seems unstable. have to (auto)reconnect sometimes.
So my question is: is it my mobo, power supply or something else?
FYI: I had an dvd-rw station which did not open properly, so unplugged the ata and power, als removed the second harddrive. now only have sata harddrive. also removed the extra video card (ati sapphire x1600 pro) so use only onboard video now and still have these issues.
EDIT Update: will try with a new PSU (power supply unit of 400watt) the old (factory) one was 300watt. and will use a usb drive which has 12.04 ubuntu on it (made with wubi) to format everything and re-install ubuntu. (so also delete mbr partition) will update the day after tomorrow.
EDIT 2 I have checked the case for dust and vacuum cleaned it. But that did not change a bit. It still seems that the motherboard is failing. because of the losing network connection (which has no cable in it) and the randomly dropping wifi (usb dongle) and the randomly not responsive usb mouse.
EDIT 3 I have inserted a new psu and still have random wifi dropping (which is a pci add on card) the dvd drive is somehow only opened by using an iron strip and some force. but it works. installed ubuntu 12.04 from CD and runs faster/better.
EDIT 4 I have run pc check 6 from eurosoft and it have not found any motherboard issues. still have random dropping of the onboard lan or pci wifi and the dvd drive will not open normally. Can this be a bootsectorvirus? because pc check said I have one.