The board may not be fully ACPI compliant. You could try disabling ACPI in BIOS and installing windows again as a standard PC configuration. A BIOS upgrade might be available.
I'd certainly recommend replacing the mobo with something better.
Sounds like you have the second output enabled(usually TV-out). You should be able to disable it in safe-mode by changing the driver through display properties.
It's possible that both the mainboard and the CPU are fried if a voltage regulator has gone.
If you can, check the Vcore and VIO with a multimeter.
Have you tried a different PSU?
It's possible that the BIOS has become corrupt. If you have a universal programmer or want to try hotswapping...
What operating system are you using? I've seen a similar performance deterioration when using McAfee VirusScan with Windows XP.
If you have an IRQ conflict, try disabling COM 2 if it's unused and assign IRQ 3 to another PCI device.
I've seen a few instances of non ACPI compliant modems and NICs causing errors when sharing interrupts with other devices under Windows 98 and 2000.
My suggestion would be to try a different NIC or updated driver.
In desktop systems that I'm more familiar with, PCI slot 1 often is designed to...
Depending on the mainboard chipset and the CAS latency of the RAM at 100MHz, the 2 types may not work at all together.
Be especially careful with Intel and VIA chipsets for Celeron-PIII class CPUs.
In my opinion, an 80mm intake fan at the lower front of the case can be invaluable.
The cases I prefer to use have a foam air-filter for getting rid of fan-killing dust, and require a fan to draw air through the filter(instead of through unfiltered holes in the case).
From what I've seen...
It's possible the PSU has a problem. The 12V line may be low. Check the voltages and make sure the PSU fan is working properly.
Also if one HDD is not initialising correctly on a channel with 2 HDDs, it is possible that neither will detect.
The thing that slows 98se boot time down the most prior to the desktop showing is network initialisation. You could try booting without the NIC and see if it improves things.
Tufftest pro is a good piece of software for testing hardware. Serial and parallel loopback plugs can be used with this.
A working test-bed machine is a good idea for testing components. I use an MS-5164 with an AMD-333 for this. The ALI chipset on this board is very good for testing most...
It depends a lot on the design and build quality of the board. Some manufacturers such as PC-Chips and Jetway make boards that are lucky to last 2 years. Others might build better quality boards that have design flaws, such as Abit with poor heat dissipation from voltage regulators.
Another...
A capacitor is generally cylindrical in shape(usually black plastic with a metal end exposed) and the top should be flat with an X on it.
It is composed of two metal strips with an insulator between them wrapped around and around inside the cylinder and holds a high voltage charge.
If the...
Check in the BIOS for an auto-shutdown option. You should be able to set it to a higher temperature or switch it off.
The CPU has an inbuilt thermal diode as well so will throttle the speed automatically if it's overheating. Check all the fans to make sure they're working.
What are the voltages like(PSU 5V, I/O voltage and CPU core voltage)?
I'd suggest a failed voltage regulator as the most likely cause of the problem. Check around the CPU for bulging capacitors or residue around the base of them.
Have you tried resetting the BIOS?
Do you have a POST error code...
By the looks of the fluctuating vcore you could have a voltage regulator that's on the way out.
It's been a fairly common problem with Abit mobos for years.
Check the capacitors between the CPU socket and AGP slot for bulging. You might be able to replace them if you're competant with a...
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