Mochatea396
Experienced Member
Hello group,
I’m in the process of fine tuning an IBM 5150. The hardware is “as is” from when I took possession of it some 30 years ago. It has one 5.25 floppy, a seagate hard drive (which is the boot drive) and a 3.5” floppy drive. It’s O/S is DOS 5.0. Both floppy drives format blanks without errors but the 3.5” only formats to 360K. Says it on the screen before it starts formatting the disk. Is this a setting that someone set somewhere? The person had the video switches set to 40 column as well and I set them for 80. (No idea why someone would do that). But that got me wondering if he has this drive set to 360K somehow. I’ve attached a photo of my drive cards (top card is the 3.5” card). I see a jumper on the upper left, could this being jumped be causing it? Just an thought.
Any input would be appreciated. I’m just getting into vintage IBMs and I’m still new at them.
Thanks
I’m in the process of fine tuning an IBM 5150. The hardware is “as is” from when I took possession of it some 30 years ago. It has one 5.25 floppy, a seagate hard drive (which is the boot drive) and a 3.5” floppy drive. It’s O/S is DOS 5.0. Both floppy drives format blanks without errors but the 3.5” only formats to 360K. Says it on the screen before it starts formatting the disk. Is this a setting that someone set somewhere? The person had the video switches set to 40 column as well and I set them for 80. (No idea why someone would do that). But that got me wondering if he has this drive set to 360K somehow. I’ve attached a photo of my drive cards (top card is the 3.5” card). I see a jumper on the upper left, could this being jumped be causing it? Just an thought.
Any input would be appreciated. I’m just getting into vintage IBMs and I’m still new at them.
Thanks