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Invalid System Disc HELP!

maxx2140
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Last Modified: 2010-04-27
Hi, I have put togethor a computer with spare parts i had around from upgrading my other computer. The one i a putting togethor is 200mmx 32megs voodoo2 ati video card. But when i start it i get "Invalid system disc". This error happens for my C: and my A:.

I know the HD works because it works on my other computer. But it wont boot.

The A drive i bought from a friend and its pretty old, but even if it doesnt work i should be able to boot with my HD.

And i have changed my BIOS to C,A,SCII

My BIOS reconnizes my HD

My Ram Works

I have tired running it without a A drive also

Any suggestions????

Thanks
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Top Expert 2007

Commented:
The BIOS from the previous machine may have recognized the hard drive differetly.
Try all the modes available for the disk detection.
LBA, large and CHS.
One of them should work unless you also have a BIOS overlay on the drive used for loading " large" drives on older machines.

Put the disk bak in the machine that works, check the BIOS settings and try these in the new machine.

ALso- try booting from a floppy  without the disk attached.
You will need a floppy or bootable CD working to try the next options.

If you can afford to wipe the drive, use a bootable floop or CD, to run

fdisk /mbr

and then

sys c:

Run fdisk and make sure that the partitions are recognized and make sure that C: is active ( option 2 ).

I hope this helps !
Top Expert 2004

Commented:
also while in the bios, make sure the boot order is correct. ususally c: a:
you might switch it to a:, c: and put in a boot disk and boot from that, then switch to the c drive and type dir and see if the files are recognized
you can also from the prompt type fdisk and choose option 4 and see what fdisk reports. it should show the partitions on the drive (choose yes for large drive support)
Top Expert 2004

Commented:
also on post is the drive reported as the master? if not, change the jumper settings on the drive so it is the master,and make surte it is on the master ide channel, and not the secondary
Top Expert 2004

Commented:
also on post is the drive reported as the master? if not, change the jumper settings on the drive so it is the master,and make surte it is on the primary ide channel, and not the secondary
rid

Commented:
Above are good suggestions. You still have a problem left if you get the machine to boot, if you have win9x on the HD: the "new" machine probably has a different hardware setup than the on in which the HD resided last. All sorts of funny problems will appear... If the HD is detected OK I suggest you start from fdisk and install the O/S properly. This, however, does require a working FDD. Check BIOS setting for drive type.
Regards
/RID

Commented:
One other thing to check in fdsik.

Make sure the partition is set to active.

Commented:
I am assuming there is nothing on the HD you need and you are trying to get booted up to the point of installing the OS.
First clear the CMOS setup by moving the jumper on the MB (or removing the battery for a few hours)
Then when booting up go into the CMOS setup to make sure the HD is correctly shown.

Commented:
When building any new system it is easiest done on a clean hard drive.  Make sure BIOS can recognize hard drive and is not limited by ancient architecture standards then format it.  Set up components you want and then load OS.  Try booting from CD.

Author

Commented:
My HD has Win95 and stuff on it already
I know my computer will except my HD becuase this same HD used to be in that computer and worked fine.

I cant use fdisk because i cant get into dos.
I think my A: is busted or the cables are or i suck at installing it
And i have no Cd-Rom

Thanks for your help so far
Top Expert 2004

Commented:
get into dos by pressing F8 when you see starting win 95, and choose command prompt only
Top Expert 2004

Commented:
ooops never mind, you don't get to that part
Top Expert 2004

Commented:
go onto the bios, and change the boot order to a:, c:
and then try to boot from a floppy
rid

Commented:
If the boot order is C: A: and the HD isn't bootable, you'll possibly not get out of "Invalid system disk". As has been mentioned, change the boot order and try booting from floppy. Does the POST messages say anything about floppy being detected? Is the drive attached to the end of the cable (beyond "twist")? I still think you may have to start over with the HD, once you are able to boot, if it has been set up in another computer - saves you a headache and some time.
Regards
/RID

Commented:
I already suggested a "clean" install but he has no CD.

What Motherboard are you using here???

You may also want to enable Boot Up Floppy Seek in your BIOS.

Commented:
Assuming the floppy drive is good there is four possible ways to hook it up and only one way will work. Does the light come on and stay on?  Make sure the twisted part of the cable is at the floppy end and then try each of the four possible ways to get it working.
After you have the twisted part at the floppy end , try it and see if it works, if not then flop each end over one at a time and test again.

Author

Commented:
light doesnt go on at all
think i should by a new Floppy

Commented:
Sounds like it, can you test it in another computer first?
Check the ribbon cable too.

Commented:
If motherboard is bad time for a new motherboard.  I have seen these destroyed many times.
Install you HD on another's computer, transfer the system on your drive using sys command (under win95/98).
Top Expert 2007

Commented:
Dear questionner/expert(s)

No comment has been added lately, so it's time to clean up this TA.
I'll leave a recommendation in the Cleanup topic area that this question is to be:

 - PAQ'd and pts removed

Please leave any comments here within the next seven days.

==> PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER ! <==

VirusMinus
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Per recommendation, points NOT refunded and question closed.

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