Biostar gf7100p-m7 does not boot. flashing red light 8 times

Obviously, an alarm is displayed after some time.
The alarm is displayed by a repeated flashing sequence of the START / PAUSE button with yellow and red light (0,5 seconds on, 0,5 seconds off with a 2,5 second pause between the sequences).
• button indicator START / PAUSE with yellow light indicates the first digit of the alarm code (family)
• button indicator START / PAUSE with red light indicates the second digit of the alarm code (internal number of the family).

Dado

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

remove all ram memory wait 5 min,make sure to unplug from a/c,reboot with no mem should hear beeping unplug reinstall mem should boot ok if mem good,good luck!

More details are needed:
* Windows XP Home Edition ? XP Professional? Vista ? 7 ?
* Internet Explorer 6? 7? 8?
* Which version of Adobe Flash Player ?
Check via: http://www.adobe.com/software/flash/about/
* does changing to a different video-card change the problem ?

The L.E.D. located on the tiller
dashboard will indicate with flash codes what problem is occurring.
L.E.D. Flashes 1 time and pauses, 1 time and pauses…. Batteries are low,
scooter will still operate.
L.E.D. Flashes 2 times and pauses, 2 times and pauses…. Batteries are very
low, scooter will not operate.
L.E.D. Flashes 3 times and pauses, 3 times and pauses….Over voltage to
controller.
L.E.D. Flashes 5 times and pauses, 5 times and pauses….Brake is in the
freewheel position or connection to brake is open.
L.E.D. Flashes 6 times and pauses, 6 times and pauses….Paddle or speed
potentiometer problem.
L.E.D. Flashes 7 times and pauses, 7 times and pauses….Paddle or speed
potentiometer problem.
L.E.D. Flashes 8 times and pauses, 8 times and pauses….Motor
disconnected or faulty.
L.E.D. Flashes 9 times and pauses, 9 times and pause….Controller fault.

I hope this helps they are pretty standard codes I got this from Golden Tech Web Site

Please count red light flashes and let me know. There would be long pause between flashes so count pause to pause. It is an error code of TV problem.

Do you see any text at all when booting up? If so, try pressing F8 on reboot to get to the Windows Boot menu. It's not real apparent when you are supposed to do this, so once the system gets past the initial Power on Self Test, start tapping it. Select Safe Mode and see if your display loads. Set your video settings to something safe and simple like 1024 x 768. Reboot to normal Windows and begin bumping your video settings up from there until you get them where you want them.

power supply board going bad

The bios upgrade procedure stopped at half , leaving the bios corrupted. The computer now cannot do a regular boot procedure, this is the reason why it cannot recognise some device. If you are still able to boot from floppy, you can restart bios upgrade procedure from floppy. Just download floppy version upgrade and re do setup. Even if you do not find latest bios version, just download a floppy upgrade that is working, so that you can restart your machine regularly , and then do the update to latest version.
If you are not able to complete the bios setup, the only way to fix your motherboard will be flashing the CMOS chipset with a chip programmer device that will reinstall bios straight into cmos chipset.
You can have this done at the service point, in this case consider also replacing your motherboard.

Regards

Did you remove the components that you upgraded, and try adding them back one by one?

Will it give you a POST screen?

Does it Beep at boot time? If it is noisy try moving it to another room.

Describe the original components and then the ones that you upgraded in detail. This will allow us to better troubleshoot the problem.