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ASUS A8N-SLI SE "Non-system disk or disk error. Replace and press any key when ready."

I installed this system board to a customer back on November 2006 last year. The customer have error message: "Non-system disk or disk error. Replace and press any key when ready."
Each time I changed the Bios setting and it is all right.
Recently, my customer was away from his computer for about 2 weeks and when he comes back the computer was working all right for a few days. After that he has lost his BIOS setting again. I have update the BIOS and the problme still happen from time to time every few months
I would like to see if there is any suggestion.
I have contacted the ASUS UK and they asked me for 15 pounds 12.00 for postage and insurnace after repair. Including the postage to ASUS then it would more then the value of the system board.
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jwlchan
Asked:
jwlchan
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1 Solution
 
frostburnCommented:
Hi there,
Sounds like a faulty cmos battery or it is not making contact the way it should.
You can try popping it out(with all power cables disconnected) and then putting it back in and saving the settings again.
If that doesnt work you can just try replacing the cmos battery.

Hope this helps
-Michael
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jwlchanAuthor Commented:
Hi Michael
As I said in the question. My customer was away for 2 weeks without using the computer and the computer startup all right for the first 2 weeks. This should mean that the battery is working all right.
I do think that I have changed the battery already when this problme first occured.
Regards
JWLCHAN
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frostburnCommented:
Check this first:
I downloaded your manual and you should check that the Clear RTC RAM (CLRTC) jumper is on pins 1-2 not 3-4.

Be sure the battery you have is 3V Lithium battery (CR2032)
If not that could be the issue in this case.

Hope this helps
-Michael
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CiTech05Commented:
If the battery is OK:
1) Make sure no USB drives are connected.
2) Make sure the HD(s) are showing in BIOS or during POST
3) XP or Vista?
   - XP and Asus boards - Has been known to move the ntldr to an external drive if plugged in during startup. I have seen this on ASROCK and my current ASUS board. Fixboot in recovery console usually fixes this.
   - Vista - Cant help ya much here, I try to avoid the latest MS products until the first SP.

The other possibility is a failing or failed HD. Check the man's website for an HD utility and check the drive. (Usually included in the ultimate boot cd)

Should give you a few other routes to look into.
Just let us know,
-B
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jwlchanAuthor Commented:
Thank for the reply again. Micheal.
1. Battery is 3V Lithium.
2. When I installed the system board I know that all jumpers are defult so I take it should be pin 1-2 in clear RTC Ram. However, I shall ask my customer to bring the computer back to me so that I could check again.
To CiTech05
I do not understand what you mean with "XP and Asus boards - Has been known to move the ntldr to an external drive if plugged in during startup. I have seen this on ASROCK and my current ASUS board. Fixboot in recovery console usually fixes this." (it run in XP)
HDD is OK as I have chek it.

Regards

jwlchan


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nobusCommented:
i would try another power connector on the disk - it can be a bad contact.
it can be a disk that powers on rather slowly; you can  test this dy disabling the quick boot feature; if it is ok then it is a slow disk.
if you want to run a test on it :  http://www.tacktech.com/display.cfm?ttid=287
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jwlchanAuthor Commented:
The problme is that this issue do not comeup everytime. This only happen after every few months. As I said on my question, as soon as I reset the Bios setting then it work well for a few months again.
I just wonder if the customer have change the BIOS by mistake. (as the best of my knowledge BIOS won't chnage by itself) The customer told me he do not know where and how to change the BIOS and he has no reason to do so.
The Hard disk is a Seagate Barracuda 7200, 160 GB Hard disk so it should not have this problem.
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nobusCommented:
that does not mean you cannot connect it to another connector, as suggested, or try the quick boot feature, oreven test it . . .
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jwlchanAuthor Commented:
OK, I shall ask my customer to bring his computer back to me and I shall try.
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jwlchanAuthor Commented:
Hi, I shall receive the PC on coming Thursday, 18 October 2007 and I shall try all the suggested methods to see if I could sort out the problme.
Regards
jwlchan
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nobusCommented:
<watching>
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CiTech05Commented:
To CiTech05
I do not understand what you mean with "XP and Asus boards - Has been known to move the ntldr to an external drive if plugged in during startup. I have seen this on ASROCK and my current ASUS board. Fixboot in recovery console usually fixes this." (it run in XP)
HDD is OK as I have chek it.

NTLDR is looked for to boot from the HD, if not available, it will give no os found msg after post.
On my ASUS and their sister company, ASRock (I own an A8N and an eSATA2), if a USB drive is plugged in during post, no matter the boot order, will move the NTLDR to the USB and give you the error described.

If it only happens on rare occasions, probably not the issue, as this happens on mine every time consistently. No workaround for it on either boards (ASUS doesnt see it as a problem so the BIOS hasnt been fixed).
_________________________________________________________________
If it's a power issue, likely since it takes so long for the issue to come back, I would lean more towards a failing PSU (Power Supply) than a faulty connection. I have only experienced poor connections that would create inconsistant and various failures during usage, in other words, not total failures at regular intervals as you are describing, although it is possible. It is also possible that just that line from the PSU to that connector is going.
_________________________________________________________________
Failures at extended intervals could be a heat issue with the PSU or HD.
Dirty power could also lead to increased heat in the PSU and failure months out.

When it comes back in, you can try looking at the SMART data to see if any failures are recorded. Seagates utility may not find any current issues but if there have been any problems over its lifespan (unless disabled) it should be recorded in the SMART tables.

*If it is currently working (since you have redone the BIOS settings and sent it back to the customer) than we can throw around ideas all day, but wont know if anything works for a few months until it would be expected to go down again.
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jwlchanAuthor Commented:
Dear CiTech05
I think your suggestion makes sense and I think this is quite possible a power supply problem. I have a few systems using cheap PSU and have problem with start up.
I shall try to change the PSU once I received the system and should let you know soon.
Many thanks for the reply and the clear explanation.
Best regards
jwlchan

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jwlchanAuthor Commented:
"When it comes back in, you can try looking at the SMART data to see if any failures are recorded. Seagates utility may not find any current issues but if there have been any problems over its lifespan (unless disabled) it should be recorded in the SMART tables."

Hi CiTech05
Could you show me how could I check the SMART data?
Regards
jwlchan
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jwlchanAuthor Commented:
After I have received my customer PC I tried to flash the BIOS to the most up to date one and discover that this is not an A8N-SLI SE motherboard.
This is an A8N5X. I am sure that I order an A8N-SLI from my supplier Dabs.com!
Anyway, because of this I also discovered that the BIOS on this motherboard were a Beta BIOS Ver 1003. As this is a Beta version so I feel that it could still have some bug so I have flush the BIOS to A8N5X902 which is the most up to date BIOS. (Not Beta)
I have restarted the system many times and it seems to be all right. One more thing I note that the customer put a floppy disk in the drive. Although I already set the POST to first boot to Hard disk and second boot to CD. I do not know if this still could make the system to boot from this non bootable floppy drive to cause this problem.
Many thanks for all the comment and I feel that I may find out the problem as this was a Beta Bios and I only could tell with time.
Many thanks for all the comments and I feel that the most make sense one would be CiTech05 so I still accept his comment as answer.
p.s. I still would be interest to know how to check the SMART data.
jwlchan
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nobusCommented:
>>   I do not know if this still could make the system to boot from this non bootable floppy drive to cause this problem.   <<   if the floppy is set as 1st boot device, and there is a non bootable floppy in it, that is what happens : " non system disk....

 
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jwlchanAuthor Commented:
I have already set the first boot as Hard disk and the second boot as CD as I mention on my last message. However, as the Bios was the beta one so it may caused the problme still make the non system floppy disk boot up!?!????
Another point is that this may be a human error from this customer and he just changed the BIOS without notice or do not tell me????
Personally, I could not see there is any problme with this computer at all.
jwlchan
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CiTech05Commented:
Try:
http://support.wdc.com/dlg/onlinedlg.asp

The WD diagnostic utility there will work on all SMART enabled HDD. After you install it, run it and right click on the drive. It will let you look at the smart data and you can see if the drive knows it is failing or if the issue lies elseware. Like any other tool, it should be the only thing used to determine if the drive is bad or not, but it helps.
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CiTech05Commented:
Sorry:
should not be the only thing used
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jwlchanAuthor Commented:
Do you mean the "Data Lifeguard Diagnostic for Windows" ? There are a few download in there!
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