Motherboard adventures
Posted: Tue Jan 25, 2005 9:27 pm
You'll find this amusing if you build PCs...
I'm replacing Rogue's computer with my pre-October box. The old one is an overclocked Celeron in the half-gig range, and the replacement is a XP1800. Somewhere along the way, I decide that since what she uses the box for isn't dependent on Windows, I'm going to put Linux on it. There's more to that story, but on with this one.
I'm configuring the silly thing in Linux, and try as I might I can't get the sound working. Finally I boot it into WinXP to see if everything's kosher there, and sure enough, it's not. A little research leads me to believe I need to flash the BIOS with an upgrade. Ok, so I make the boot disk and run the program. It flashes. Then, it says "Verifying" for about a millisecond, and the system reboots. Not only does it reboot, but the two CD roms, the HD activity light, and the floppy all start going bonkers at once.
"Crap!" sez I. "I screwed up the flash!"
The mobo is a K7S5A, and I happen to have another almost identical. So I get the brilliant idea of swapping the BIOS chips. So, after much dust, several loose screws, and a scraped knuckle, the system is ready to boot with the new BIOS. Turn it on, and what do I get?
Blinky blinky again.
"Hmm..." I wonder. "Did I get the chips mixed up during the swap and put the bad one back in?" So I swap the chips again.
Blinky blinky.
TANJ! Now what do I do? Thinking that perhaps the "good" BIOS was somewhat incompatible with the "bad" BIOS' board, I remove the mobo entirely, put the CPU and unflashed BIOS in the spare board, and hook up just enough stuff to boot - vid card, RAM, single HD cable, keyboard & monitor. It's sitting, nekkid, on top of the case. Turn it on, and it boots.
Wonderful!
Stick it back in the case, hook it all back up, power on.
Blinky blinky.
Beat head on wall. Serves as inpiration, I guess. Aha! Something else is the culprit! What did I change between previous boot and now? *mental rummaging* Unplug the speakers. It boots!
At this point I come to the conclusion that something about the speakers is causing unpleasant electrical side-effects in the on-board audio circuitry. So I disable the onboard audio, stick in a SBLive, and everything's fine.
Except, of course, the wasted evening. But at least I got this cool story to tell, right?
BTW, I didn't replace the mobo in the first place because I thought the spare had a defective HD controller. At this point, I still don't know the status of my new spare - it's in a box on the shelf.
I'm replacing Rogue's computer with my pre-October box. The old one is an overclocked Celeron in the half-gig range, and the replacement is a XP1800. Somewhere along the way, I decide that since what she uses the box for isn't dependent on Windows, I'm going to put Linux on it. There's more to that story, but on with this one.
I'm configuring the silly thing in Linux, and try as I might I can't get the sound working. Finally I boot it into WinXP to see if everything's kosher there, and sure enough, it's not. A little research leads me to believe I need to flash the BIOS with an upgrade. Ok, so I make the boot disk and run the program. It flashes. Then, it says "Verifying" for about a millisecond, and the system reboots. Not only does it reboot, but the two CD roms, the HD activity light, and the floppy all start going bonkers at once.
"Crap!" sez I. "I screwed up the flash!"
The mobo is a K7S5A, and I happen to have another almost identical. So I get the brilliant idea of swapping the BIOS chips. So, after much dust, several loose screws, and a scraped knuckle, the system is ready to boot with the new BIOS. Turn it on, and what do I get?
Blinky blinky again.
"Hmm..." I wonder. "Did I get the chips mixed up during the swap and put the bad one back in?" So I swap the chips again.
Blinky blinky.
TANJ! Now what do I do? Thinking that perhaps the "good" BIOS was somewhat incompatible with the "bad" BIOS' board, I remove the mobo entirely, put the CPU and unflashed BIOS in the spare board, and hook up just enough stuff to boot - vid card, RAM, single HD cable, keyboard & monitor. It's sitting, nekkid, on top of the case. Turn it on, and it boots.
Wonderful!
Stick it back in the case, hook it all back up, power on.
Blinky blinky.
Beat head on wall. Serves as inpiration, I guess. Aha! Something else is the culprit! What did I change between previous boot and now? *mental rummaging* Unplug the speakers. It boots!
At this point I come to the conclusion that something about the speakers is causing unpleasant electrical side-effects in the on-board audio circuitry. So I disable the onboard audio, stick in a SBLive, and everything's fine.
Except, of course, the wasted evening. But at least I got this cool story to tell, right?
BTW, I didn't replace the mobo in the first place because I thought the spare had a defective HD controller. At this point, I still don't know the status of my new spare - it's in a box on the shelf.