![[H]ard|Forum](/styles/hardforum/xenforo/logo_dark.png){kind=logo}
Successfully troubleshooted a sudden slowdown and i just thought i'd share it since i didn't find one specifically for it in google.
I'm using Windows XP SP3.
After plugging in a new TV tuner, i noticed that my bootup was suddenly a LOT slower. I thought it was just the OS detecting my new card so i let it slide and went ahead with the driver installation. However i next noticed that the restart sequences after i installed the driver also took much longer. What really worried me was that the slow bootup was still there after i restarted. Also, when i try opening any program, the mouse would stutter, if you check my sig, that should NOT be possible. The final straw was when i hibernated and it must have taken 1 minute for the progress bar to finish.
So i took out the tv tuner, however, the rig was still slow. So i tried safe mode, and noticed that it paused at mup.sys, of course, the next step was open up google and find out what the heck mup is. Turns out it's related to device detection and it could be anything on my PC that the OS is having trouble detecting. So it could be anything.
My rig is only a couple of weeks old, so it can't be failing already, and i've taken out all the drivers related to the tv tuner, and i only have the essential components (1 harddrive, no PCI, 1 videocard), so there's barely anything to screw up.
Then i remembered a certain problem i had with dvd drives. When they can't read a dvd, they switch to PIO mode. Which causes the whole rig to slow down whenever something is read off it. It was a long shot, but i thought i'd check Device Manager anyway.
Sure enough the IDE was in PIO mode. Odd that it says that i have two IDE ports in use, when i only have a DVD writer plugged in there. I went to the registry and cleared out the variables to force windows to re-detect it. When i rebooted, it was back to normal and i shaved atleast 30 seconds off the startup, plus the hibernate now finishes in under 2 seconds. Problem solved
Three things i still don't know the answer to.
1. Why did the IDE devices switch to PIO mode when i installed the TV tuner? Or maybe it was coincidence? I'm gonna try to plug it in again later.
2. Why do i have *TWO* IDE devices, the only IDE i have is the DVD-writer?
3. Why is my SATA drive affected by the IDE going PIO?
I'm using Windows XP SP3.
After plugging in a new TV tuner, i noticed that my bootup was suddenly a LOT slower. I thought it was just the OS detecting my new card so i let it slide and went ahead with the driver installation. However i next noticed that the restart sequences after i installed the driver also took much longer. What really worried me was that the slow bootup was still there after i restarted. Also, when i try opening any program, the mouse would stutter, if you check my sig, that should NOT be possible. The final straw was when i hibernated and it must have taken 1 minute for the progress bar to finish.
So i took out the tv tuner, however, the rig was still slow. So i tried safe mode, and noticed that it paused at mup.sys, of course, the next step was open up google and find out what the heck mup is. Turns out it's related to device detection and it could be anything on my PC that the OS is having trouble detecting. So it could be anything.
My rig is only a couple of weeks old, so it can't be failing already, and i've taken out all the drivers related to the tv tuner, and i only have the essential components (1 harddrive, no PCI, 1 videocard), so there's barely anything to screw up.
Then i remembered a certain problem i had with dvd drives. When they can't read a dvd, they switch to PIO mode. Which causes the whole rig to slow down whenever something is read off it. It was a long shot, but i thought i'd check Device Manager anyway.
Sure enough the IDE was in PIO mode. Odd that it says that i have two IDE ports in use, when i only have a DVD writer plugged in there. I went to the registry and cleared out the variables to force windows to re-detect it. When i rebooted, it was back to normal and i shaved atleast 30 seconds off the startup, plus the hibernate now finishes in under 2 seconds. Problem solved
Three things i still don't know the answer to.
1. Why did the IDE devices switch to PIO mode when i installed the TV tuner? Or maybe it was coincidence? I'm gonna try to plug it in again later.
2. Why do i have *TWO* IDE devices, the only IDE i have is the DVD-writer?
3. Why is my SATA drive affected by the IDE going PIO?