NoAffinity
Well-known member
- Joined
- Oct 25, 2005
- Messages
- 1,370
- Reaction score
- 92
I am trying to verify some chips off of a Donkey Kong 2-board stack, all TMS. The 2532's go through verification with no problem, albeit very quickly - 2 seconds or less for verification to complete.
The 2716's and 2732's fail at about the 50% point. The process goes about the same speed for them as the 2532's - very quickly - but failing to complete.
The GQ's software posts a warning that if writing doesn't complete successfully, then use an external power supply. Thought I would give this a try for the verification process. I read through the included Help in the software, and read that the external power supply should be 9V 200ma power supply. I found that the universal power supply I got with my Sega Genesis is a 9V 800ma power supply with the correct barrel plug. I plugged that into the GQ, and nothing happens. Not sure if a setting or something has to be changed for it to pull power from the power supply? Should the GQ light up when external power is plugged in?
I then connect the USB cable, with the power supply still plugged in. The software still comes up with the warning about possibly needing external power. I try the verification process again, and get the same result.
I am loading the rom file as binary, and making no other changes (how I typically read and program roms successfully).
To summarize the questions:
1) Does something need to be changed on the GQ when plugging in external power, for it to pull power from the external power supply?
2) Should something happen, like the GQ lighting up, when plugging in an external power supply without USB connected?
3) I have other power supplies available - 10V and 12V. Can these be tested, or is the GQ 9V max?
3) Is there any other guidance that anyone can provide, based on what I've described above?
The 2716's and 2732's fail at about the 50% point. The process goes about the same speed for them as the 2532's - very quickly - but failing to complete.
The GQ's software posts a warning that if writing doesn't complete successfully, then use an external power supply. Thought I would give this a try for the verification process. I read through the included Help in the software, and read that the external power supply should be 9V 200ma power supply. I found that the universal power supply I got with my Sega Genesis is a 9V 800ma power supply with the correct barrel plug. I plugged that into the GQ, and nothing happens. Not sure if a setting or something has to be changed for it to pull power from the power supply? Should the GQ light up when external power is plugged in?
I then connect the USB cable, with the power supply still plugged in. The software still comes up with the warning about possibly needing external power. I try the verification process again, and get the same result.
I am loading the rom file as binary, and making no other changes (how I typically read and program roms successfully).
To summarize the questions:
1) Does something need to be changed on the GQ when plugging in external power, for it to pull power from the external power supply?
2) Should something happen, like the GQ lighting up, when plugging in an external power supply without USB connected?
3) I have other power supplies available - 10V and 12V. Can these be tested, or is the GQ 9V max?
3) Is there any other guidance that anyone can provide, based on what I've described above?
Last edited:


