"...i dont have any old "serial" keyboards... "I've seen a few ancient keyboards for ancient proprietary computers (pre pentium) that use the same 9 pin connector as a serial mouse or an external modem does, but they're not compatible with a serial port - they only work connected to the keyboard port's proprietary wiring on the computer.
They won't work with ANY commonly available serial to PS/2 adapter.
A PS/2 to serial adapter will not work with any keyboard with a PS/2 connector on it's cord because there is no such thing as a "combo" PS/2 / serial keyboard that is designed to be used with either type of connection and has the wiring inside it to make that possible (at least, I've never come across one or heard or read of one).
There are PS/2 to serial or visa versa adapters for older "combo" mice that are designed to be used with either type of connection and have the wiring inside it to make that possible - the adapter wiring varies - the adapter that came with the mouse will work fine but one from another mouse or a generic one may not - but they cannot work with a PS/2 keyboard.
"Usually there's a warning during the flash process if the BIOS file is incompatible."
"nope no warning .. i flashed a v2.0 board with a version 1.0 bios..."
You are taking a big risk when you flash your bios - if the flash fails, and/or the flash chip physically fails while flashing (this is COMMON - these cheap flash chips can only be flashed an unpredictable small number of times), you will have a mboard that will not boot.
If the flash fails, but the flash chip is physically okay, you can follow a specific Recovery procedure, according to the brand of your bios.
In that case, you either:
- get a message saying "....Boot Block Bios ..."
"looking for floppy...." , or similar, and the floppy led lights up the same as in this next situation.
- you have no video, but the led for the floppy drive comes on a second time after booting, after the usual brief flash you see while booting, and stays on for a longer time, then goes out.
If you DO have that situation, the boot block part of the bios, which is almost always NOT flashed when you update your bios, is intact, and a Recovery procedure for your brand of bios may work fine with the proper bios update.
However, if the boot block part of the bios for the Version 1.x and 2.x of yor ECS model is not the same, you may not have that option, even if the flash chip is still OK physically.
A change in the first number of a mboard version often indicates some major chip is different - often it's the I/O chip or the main chipset chip that has the I/O integrated into it.
A USB connected keyboard cannot be seen by the boot block part of the bios.
In fact, the boot block part of the bios often doesn't recognize anything except a floppy in the floppy drive that has the proper files on it necessary to perform the Recovery procedure for your bios brand. If it recognizes a keyboard at all, it has to be a PS/2 connected one. A USB to PS/2 adapter connected to the USB connector on a keyboard cord will not work unless the keyboard is a "combo" one that is designed to be used with either type of connection and has the wiring inside it to make that possible.
If the Recovery procedure works....
After you flash the bios, the first time you boot you will get a "Cmos Checksum Error...." or similar message. You will either be prompted to enter the bios Setup or you will automatically go there. Enter the bios Setup, set the date and time, and load Bios Defaults - save settings, reboot. You MUST do this (or Clear the CMOS by moving a jumper on the mboard) in order for the bios update to be fully accepted by the mboard.
If there is the choice to load Optimized Defaults, try it rather than Fail Safe defaults or whatever other choice there may be - usually the bios will automatically detect which optimized settings are appropriate.
......
If the flash chip physically fails, or if the boot block part of the bios for the Version 1.x and 2.x of yor ECS model is not the same, you may get no messages at all while flashing, or at least no message or other indication such as beeps that it was successful, and you will have a dead mboard until that is fixed, and you need to obtain a new flash chip, already flashed.
" .....i can get a new one rather cheap so i thaught i would share this site with everyone http://www.biosman.com/ "
In order for replacing the bios chip to be cheap enough to be worth doing, your bios chip MUST be in a socket so that it is removable. There are lots of mboards that have the bios chip soldered into the mboard - there are places on the web that can replace the soldered in bios chip with a new one already flashed with the latest manufacturer's update, but after you have paid for shipping both ways and the labour and parts to do that, it often costs nearly as muich as a new mboard.
Some mboard manuals (e.g. for MSI - Microstar) - show the bios chip in a socket but when you look at the mboard the bios chip is soldered into the mboard!
Biosman is one of the places that have "bios upgrades" or "bios updates" that have a customized bios version with all the options and features your mboard will support, even if it didn't originally have some of the options in any of the manufacturer's updates. If they have a bios flash file and flash utility download for your model rather than a bios chip already flashed they send to you, that is useless if your bios chip is soldered into the mboard and the flash chip has physically failed.
A bios upgrade is usually a more expensive option than at places that can replace the bios chip with one already flashed with the latest manufacturer's update, such as:
http://www.badflash.com
Badflash also has extensive info about what can go wrong with a flash, how to do the Recovery procedure if the flash chip is loading the boot block part of the bios, how to properly go about replacing the chip, etc., etc..
Badflash is in the US - if you are not, there are other oplaces I can point you to.
They can replace a soldered in bios chip, but only if you are in the US.