I have confirmed that it is indeed experiencing boot failure. The most common cause of boot problems with the Macintosh SE/30 is likely capacitor leakage on the motherboard, but since it sometimes works, the actual cause is unknown. Due to these circumstances, I have lowered the price from the current listing to 52,000 yen. The items included in this listing are: PC Body: Macintosh SE/30 Keyboard: M0116J Keyboard DIN cable Mouse Hard Disk (80MB) PC Bag: CANNON brand Note: The user's name is written on the top surface. The Macintosh SE/30 with a 9-inch display, in a cream color, comes with the included keyboard. This is the one I used when I was a student, and it has been stored in a dedicated bag. I remember this dedicated bag was expensive at the time. - Model: Macintosh SE/30 (32MB) - Color: Cream - Display Size: 9 inches - Keyboard: Included - Condition: Shows signs of use on the exterior - Includes Hard Disk (80MB) Condition: As mentioned in the above comments, boot problems are occurring. Additionally, as of 2025/8/15: Mouse replaced with a new one Keyboard replaced with a used one As stated in this description, I do not offer any operational guarantee. I will ensure careful packaging.