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computer boots into bios set up

By MikePell ·
mb is asus cuvx4-d. Problem began with video card gone bad. Replaced it but with older vcard but now computer boots into bios set up and says cpu speed is incorrect? When it reboots, it continues to boot to bios and gives same message?

Is the mb shot?

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by HAL 9000 Moderator In reply to computer boots into bios ...

While possible it is not likely.

The most likely thing is that you are getting a "Checksum Error Message on the Screen after the POST and before you see the BIOS screen. This can be caused by several things the most likely is that something in BIOS needs resetting particularly if it is showing the wrong CPU Speed.

The CMOS Battery is going flat and needs replacing or you have a sticking key on the Keyboard.

As this is a Dual CPU M'Board do you have 1 or 2 CPU's fitted it shouldn't make any difference but you do need to have a single CPU fitted in the right socket.

The first thing you need to do is when you are in BIOS chose the Optimal Setup and save these changes and then see if the system will boot properly. It most likely will have the wrong time/date but at this point all you want to see is if it will boot or even get past the BIOS Screen and tell you that it can not find an OS so insert a Boot Disk to Continue. If you can get that message you'll need to go back into BIOS and set the Time & Date and remember that the time is set as a 24 hour clock and change the drive recognition to Auto then press the ESC button on the keyboard save the changes made and reboot. This should now start the computer.

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by HAL 9000 Moderator In reply to

If you do not get the above error message replace the CMOS Battery and you'll have to reset the BIOS again and when you remove the battery don't forget to unplug the computer as just having it not running still has power to the M'Board and if you accidentally drop the Battery you'll ruin the M'Board. Get a new Battery Radio Shack should have the things and they are cheap then refit the battery the same way that it came out this is with the writing of the make and model of the battery readable when fitted in the M'Board and at the same time there should be a jumper just near the battery change it from 1-2 to 2-3 for a few seconds and then change it back as this clears the BIOS and then reboot and go into the BIOS set the Time & Date and any other Drives that are fitted and the boot sequence and then save the changes and exit. This should reboot the computer and you'll be up and running.

The sticking Key doesn't need any explanation as it is fairly obvious how to proceed there.

The only thing you really need to worry about is if the Video Card that died had a fan on it which has seized up it could have drawn more power than the M'Board could handle and this may have caused some damage to the M'Board if it didn't have a Fan on the GPU you'll not need to worry about this option. But even if there was a fan there provided you didn't replace the Power Supply with something bigger to stop the computer hanging everything should be OK.

If it still doesn't work after all the above you'll need to swap out the Power Supply and buy a good one like an Antec, Evermax or similar and at least a 450 W one as if there was a fan on the GPU the PS has most likely been damaged. The way that these things tend to go is the GPU fan fails then the computer starts falling over randomly and the PS is replaced with something bigger which then proceeds to burn out the M'Board.

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by HAL 9000 Moderator In reply to

ASUS has a 3 year Guarantee on their M'Boards so it most likely is no longer UG but if it has suffered any damage it is worthwhile checking on the ASUS Site for Warranty Status. Being a Dual Processor M'Board it may have been made much latter than the P3 CPU would tend to suggest as there was not a replacement model for the P4 they went to the Xeon's.

If you are not getting any error message the most likely thing is a sticking key on the Keyboard or something sitting on the Keyboard depressing the Delete key that would be the first one to look at.

Lets know if you need any more information.

Col

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by MikePell In reply to

Well, before I could update this problem, I was able to get the computer to boot off the cd but it hangs just after it loads the cd rom dos driver. There is only one cpu in it. I replaced the key board as to make sure that wasn't the case.

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by HAL 9000 Moderator In reply to computer boots into bios ...

Well have you reset the BIOS?

If that has become corrupted or the settings the system will not boot. Also if you have the wrong Date on the BIOS the most likely thing is that the battery has gone flat which is a fairly common thing and you need to replace it.

So first check the date in BIOS and if it is back to the start date several years ago replace the battery Flush the BIOS settings and then reset them save them then exit. If you have the right date just flush the BIOS and reset it save the changes and then try restarting the unit.

Col

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by MikePell In reply to

I replaced the battery but the time was ok. I "shorted" the bios and then reset it. This is killing me! I am sometimes able to get to the dos prompt, however when I do anything to try and restart it it still hangs up to on the Seting pci window

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by ozi Eagle In reply to computer boots into bios ...

Hi,
There's a lot of good advice above. If you have tried those suggestions, start visually inspecting your mobo. If any of the electrolytics around the CPU (litle cans wrapped in plastic) have bulging tops or sides then they are shot, and your mobo is too.
I have replaced them successfully a couple of times, but have had more failures than successes. It is generally a case of nothing to lose, as the worst is that you will need a new mobo in either case, but you might be able to salvage the old one.
To replace the capacitor(s) you will need good soldering skills ( don't bother trying if you haven't), a high wattage iron (normal electronic irons of 35W or so just don't produce enough heat), a solder sucker and solder wire with flux core.
First apply the iron to one of the soldered pigtails of the faulty capacitor, wait a few seconds for the solder to melt all the way through the board, and then gently rock the capacitor so that the pigtail pulls out of the board. Repeart on the other pigtail. You may need to repeat on both pigtails. Once the capacitor has been removed you need to reheat each hole and clean out any remaining solder with the solder sucker. WARNING: DO NOT TRY TO DRILL THE HOLES OUT TO CLEAR THEM, AS THE BOARD IS MULTILAYERED AND YOU WILL DESTROY CONNECTIONS BETWEEN LAYERS. Once the holes are cleared insert the new capacitor and solder into place.

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by MikePell In reply to

sorry, I am about as steady as someone going thru the dt's. I am not steady at all. So I must face defeat! Thanks for all your help in trying to fix this problem...

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by MikePell In reply to computer boots into bios ...

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