Bricked chips using Atmega_Board_Programmer?

Using Arduino IDE 1.x
1

Hi im new to arduinos and id like to know whether ive killed a couple of 328P-PU i was intending on setting up for standalone use, and to try and understand what i did wrong.

I bought them supposedly preloaded with Uno bootloader off Amazon, after swapping them out on the Uno it appeared both were not working. I set them up in standalone on a breadboard, connected the uno and ran Nick Gammons Atmega_Board_Detector, which detected them correctly and reported that neither had a bootloader installed (0xFF all the way).

So I then ran Nicks Atmega_Board_Programmer which detected them, and i ran through the procedure to flash with Uno (16 MHz) loader. It got to the step where it Clears "divide clock by 8" Fuse, and then it kicked me out. Both ICs (yes i did the same to both :/) are no longer able to be detected being met with the legend: Failed to enter programming mode.

Ive been using avrdude to try and read them, I can detect my original good one fine, but not the bricked ones (Timeout sync errors).

What did i do wrong? Have i kill them or can they be rescued? Any help appreciated.

2

As usual you spend hours scratching your head over a problem only to solve it after a public rubber ducking.

I noticed in the change notes for Board Detector that a 8Mhz clock had been added to pin 9, simply connecting this to pin 10 on the atm328 provided the external clock i now know it obviously needed.