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invalid system disk - help .....
waddy Jul-12-01 06:35 PM
Just built a new PC.... No OS on the drive.. been formatted .....

When i try to boot from floopy i get an error saying "Invalid system disk" ??
Pin 1 is to Pin 1.
Power is getting to the drive.
Its seen by the bios...
Ive tried win2k and win98 boot disks...
Tried different cables, tried reversing the cable..
Bios settings seem fine .....

KT7 A raid mobo

what is happeneing ..please help me.. i think i have tried everything...


1. RE: invalid system disk - help .....
lbyard Jul-12-01 10:20 PM
In response to message 0
Bad floppy? Try it in another computer and keep them away from magnetic screwdrivers. BTW ordinary screwdrivers can become weakly magnetized over time from use around computers. I banned all magnetic tools from my shop many years ago when one magnetic phillips head screwdriver wiped out all of the floppies which contained the only copy of a customer's accounting software. Larry

2. RE: invalid system disk - help .....
waddy Jul-12-01 11:19 PM
In response to message 1
do you mean floppy disks ? bought a brandnew pack today ..no good still....

also ive noticed after the floppy has been in the drive when i put the disk in another pc its corrupt ..norton disk doctor says bad clusters ..

its like it corrupts the floppy as well ...

i have tried everything bar trying another floppy drive
the bios sees it and theres power to it .....


its driving me nuts


3. RE: invalid system disk - help .....
lbyard Jul-13-01 03:58 AM
In response to message 2
Trying another floppy drive is the next logical thing to do. Trying another cable is another possibilty. Trying the existing floppy drive in another computer... I have seen boxes with all bad floppies more than once. Larry

4. RE: invalid system disk - help .....
waddy Jul-13-01 02:18 PM
In response to message 3
hi Larry ...

Bought another floppy and tried that ... NO good...

Disabled Floppy in Bios ... and tried to boot using win2K cd .. same error "Invalid system disk"

someone mentioned clear the cmos ?

I rang the board manufactuters and told them all what i have written ... he said he thinks it may be the motherboard....

this is driving me nuts .........

Anyone else had this problem ?


5. RE: invalid system disk - help .....
lbyard Jul-13-01 03:03 PM
In response to message 4
More times than you can count…

After the floppy drive, it could be the floppy cable, the power supply, and/or the motherboard. The second floppy drive could be bad (I would test it and the original one in another computer). A virus? Try another 3 ˝ inch power connector. The CD booting or not booting may not be related. I am worried about your psychological health (ha!). Larry


6. RE: invalid system disk - help .....
lbyard Jul-13-01 03:05 PM
In response to message 5
Another thought. Other than making sure the BIOS is set for the correct floppy drive type(s), make sure it is not set to swap floppy drives. Larry

7. RE: invalid system disk - help .....
waddy Jul-13-01 07:07 PM
In response to message 6
hehee im worried to Larry i think im getting grey hairs from this

well the saga continues...

New floppy cables... no luck ...

The new floppy drive doesnt even get power ...

when i tried to boot from CD "invalid system disk"

Put the hard drive on another PC ...works fine boots from floppy....

Just about to try the floppys on another PC ...

the worst thing about it is I bought it online the company i bought it from ... i cant contact them by phone , always engaged ..

Sent emails and no replies....... aaaaaaaaaaaaahhhhhhhhh


i have searched and searched the web for answers but theres only a few people experiencing this and they havent had any luckk either...

Im clearing the cmos in the vain hope that might do something


8. RE: invalid system disk - help .....
lbyard Jul-13-01 09:42 PM
In response to message 7
No, I said to attach the floppy drive to another computer. I would also plug-in the same cable on the other computer. You don't have to remove the floppy from the other computer and physically install the suspected floppy drive/cable. Just attach the cables and carefully set/balance the floppy drive on its side. Hold it when inserting and removing floppies so it won’t fall over. Larry

10. RE: invalid system disk - help .....
lbyard Jul-13-01 09:50 PM
In response to message 8
BTW, an new floppy drive should be available locally for less than $20. I get 'em for about half that. Staples, etc. might charge $29 for one in a retail box with a 5 1/4" mounting kit. Larry

11. RE: invalid system disk - help .....
waddy Jul-14-01 11:14 AM
In response to message 10
Hi Larry,

Yes i have tried two brand new floppy drives...

Now someone said to me PIN1 on a floppy drive is not neccessarily next to power ?
They suggested to shave off a tab on the cable and reverse it ?


12. RE: invalid system disk - help .....
lbyard Jul-14-01 04:33 PM
In response to message 11
True, pin 1 is not always towards the power connector on floppy drives. But it is almost always labeled on the printed circuit board on the bottom of the drive. One does not shave the tab off a cable connector to orient it correctly. One simply determines where pin one is on the floppy, plugs the cable into the floppy so that the red stripe matches pin 1 (the tab will then be in the correct position, and will not usually be a problem, if you do that and the cable is a plain old vanilla floppy cable), locate pin 1 on the motherboard floppy connector, and plug the floppy cable into that connector so the red stripe is towards pin 1. I am assuming that you have a normal floppy cable, one that has twist at one end? That end gets plugged into the floppy drive. If the cable is plugged in wrong and the floppy drive, cable, and motherboard interface are good, and power is OK, the floppy drive LED will come on when you boot and stay on. Will you please verify that the floppy drives and cable are good by plugging them into another computer? There isn't much sense in doing anything else until you know you are dealing with a floppy drive and a cable that work. Also, look closely at the pins on the floppy drives. It is fairly easy to bend the last two pins outward on either side. I use a tweaker (small screwdriver) to straighten them when that happens. Larry

13. RE: invalid system disk - help .....
waddy Jul-15-01 03:38 PM
In response to message 12
Thanks for the help and advice larry , much appreciated....

well it is working now

I tested the two floppy drives and cables .... never of them worked (MSI board PC)

so off i wentt and bought another floppy drive from another shop (panasonic)

IT WORKED

wahhhhhooooooooooooooooooooooooooo

OS now being installed ....

One question:

I have a USB DSL modem and want USB controller to have its own IRQ ....

How can i achieve this ...

Do i install VIA drivers , USB filter, then graphics card drivers ?

seems that everything wants to go on IRQ 11 ?

also I have heard i can disable com2 in the bios to give me a free IRQ ?

Win2K server .....


14. RE: invalid system disk - help .....
waddy Jul-15-01 04:52 PM
In response to message 13
well i spoke to soon ......

just went to do a reinstall

tried to boot from floppy and "invalid system disk"

havent changed anything at all.....

think this board is going in the bin.....


15. RE: invalid system disk - help .....
lbyard Jul-15-01 06:42 PM
In response to message 14
I think you tested those other drives in another computer and then posted that both were bad, right? They could have damaged the floppy you just tried. Larry

16. RE: invalid system disk - help .....
lbyard Jul-15-01 06:43 PM
In response to message 15
There may also be a virus lurking on that hard disk drive. Larry

17. RE: invalid system disk - help .....
waddy Jul-15-01 07:52 PM
In response to message 16
Tried new hard drive staight out of the bag ... no good....

One final question :
On my other PC's when they are booting its says "searching boot from floppy ..ok "

now this KT7A doesnt even say that at all ?


im going to take it into college tomorrow and ask one of the engineers to have a look at it for me..... just to make sure before i send it back....


18. RE: invalid system disk - help .....
waddy Jul-15-01 08:40 PM
In response to message 17
http://fae.abit.com.tw/eng/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=000958


there are countless posts about this problem with floppy drives

im going to try and send it back and get an ASUS...


19. RE: invalid system disk - help .....
lbyard Jul-15-01 10:07 PM
In response to message 18
Yes, it looks like they have a problem with at least some of the KT7A boards and floppy drives. I am surprised. I have had very good luck with Abit boards. The KT7 did not have this problem in the computers I built with it. It kind of irritates me, as I am sure it does you, because of the time we have spent on this problem. Larry

20. RE: invalid system disk - help .....
waddy Jul-15-01 11:47 PM
In response to message 19
Larry first i want to say thanks for your excellent help and a top website .....

And you are right ..its ##### annoying .... i find it hard to believe a motherboard cant use certain floppy drives , floppy drives are the basis for computing......

I saved for months to build this system .... so im quite pee'd off with the situation....

I must have spent a week trying to get this board working ......

i just hope the place i have bought it from lets me exchange it for an ASUS .....

im going to college tomorrow and im gonna give them one of these new floppy drives and grab an old one from them .. hopefully that will fix the problem.....

thank you for your time and help , very much appreciated


21. RE: invalid system disk - help .....
waddy Jul-16-01 03:55 PM
In response to message 20
update :

college give me 5 floppy drives to try..

makes total of 7 drives...
3 cables
30 floppy disks and it still wont work...

Try to boot from CD no good either.....


22. RE: invalid system disk - help .....
lbyard Jul-17-01 03:10 PM
In response to message 21
Well, you certainly have given it the ol’ college try. Send the board back ad be done with it. Larry

23. RE: invalid system disk - help .....
danella Dec-20-01 11:43 PM
In response to message 22
I'd like to know if you ever solved this problem. I have a KT7A-RAID, that is doing the same thing. I can go to the system devices in Control Panel, remove the floopy drive, then reboot the computer. Windows will find new hardware, and install a driver, and the floppy works, turn the machine off a time or two, and the floppy goes back to reporting invalid system disk, or disk needs to be formatted, format now?
Since the installation of the drivers makes it work, (for a limited time), I am assuming the Mobo to be OK, otherwise it wouldn't work at all. I'm more inclined to believe there may be something funny with the bios, (a bad setting perhaps), or maybe a conflict in I/O range or other resource settings.
Although I have many shared IRQ's, the floppy resides on it's own with
IRQ-6
DMA 2
I/O range 03f0-03f5
I/O range 03f7-03f7
Anyone have any idea's, solutions, or other input for this problem?

Thanks, Dano


24. RE: invalid system disk - help .....
lbyard Dec-21-01 06:53 PM
In response to message 23
An intermittent drive/flat cable/power cable, marginal floppies, and a virus would be things to look for. Try disabling the RAID controller in the CMOS setup. Check Abit's site for BIOS upgrades that may bve related to the problem. Larry

25. RE: invalid system disk - help .....
danella Jan-03-02 00:15 AM
In response to message 24
Sorry, just caught your response.
Thanks for responding, I've tried 3 different drives, two different brand new cables, and about 50 different floppies, even though they work in my computer, (problem is in my Wifes computer).
The floppy does work during boot-up, ie, you can boot with a floppy, but you can't make a boot disk with the floppy because it is unrecognized in windows. This tells me the floppy is fine, the cable is fine, the Bios possibly a problem, or, I'm leaning toward thinking there may be a conflict between the window drivers, and maybe something in bios or one of the board softwares, (like the HM as an example).
Your suggestion to check out the Bios is a good Idea, I'll look into that, this is probably the first place to look.
thanks for the help,
Dan

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