Asus P5QL Pro Motherboard bootup failure

[serenadesx]

Hello.

I put together a machine a few weeks ago.

The parts inside are:
Asus P5QL Pro Motherboard
Intel Core 2 duo 775 CPU
Asus EN7200GS VGA
2 x 1GB Fatality OCZ RAM
Antec Neopower 550W Power supply
2 x dvd-r drives
160 GB Hard drive

The thing is, i put all of these parts in an old computer case, and everything worked fine. However, when i got a clear acryllic case and moved everything in there, I get these messages at boot:

CPU fan error!
CPU over-voltage error!
New CPU installed! Enter setup to configure your CPU.
Chassis intruded!
Fatal error... system halted.

I did not replace any CPU or Motherboards. Everything is same, except that i changed the case from a metal case to a acryllic case. I have been googling for 8 hours yesterday, and nothing appears to resolve my problems.

One way to boot it up is removing the battery on the mobo, then pressing F2 to load default values and booting up to windows. EVerything works fine inside windows, until i restart, then i get those abovementioned errors again. Does anybody know what is wrong? possibly the computer case?

 

[mpilchfamily]

Are you sure that everything is plugged in exactly the same as it was before?

The CPU fan error implies that the CPU fan either isn't working or isn't plugged into the motherboard fan header. Which is why the motherboard is reporting that problem.

The overvoltage implies the CPU vcore has been altered to a higher then normal level. It could be as bad as static issues from the case itself. If the board isn't properly grounded then static buildup on the acrylic will effect the motherbaord.

The New CPU error seams to suggest that the overall setting for the CPU are wrong. Its starting to look like an issue with the bios. Either the CMOS information is corrupted or the BIOS chip itself may be damaged. Possibly due to static.

The intrusion alarm is generally only found on boards that support a case intrusion switch. Not sure if that board has that feature or not. If it does then there is a feature in the bios that needs to be disabled so you won't get that anymore.

The fatal error could be anything.

Overall its looking like some sort of issue with your BIOS. Check all your settings and make sure they are where they should be. Come to think of it the fatal error could be due to the system clock being set to its default date. If the system clock is showing a date that is before when windows was installed it will throw up all sorts of errors and issues. If you remember the worries about the Y2K bug. Those worries could have been true if a sysyem thought the date was 1900 rather then 2000 since there would be a big conflict between the date reported and the dates the system files where installed.

 

[serenadesx]

Thank you so much for your reply.

I believe the everything is connected exactly as the way before.

The CPU Fan is connected to the 4 pin slot on the MB, and also the power supply has the 4-pin connection to the cpu fan slot on the MB.

I'm fixing this computer with the case laying on its side. You have stated that case can build static if the board is not grounded properly with the 6 screws?

Also, if you can tell me exactly what the BIOS chip is, and whether it could be replaced or not, i would appreciate it.

Overall, what would you suggest i do at this point? i have tried a brand new MB with the same parts, and the same 4 errors show up. I dont think my original MB is dead..

 

[jdjbuffalo]

I posted this on your other post but since you've got one going here I'll repost it.

Two things I would look at are the motherboard mounting and the BIOS.

It is very possible that your motherboard is short circuiting. Unmount it and be careful when putting it back in the case.

The BIOS is the other thing to look at. You may need to update it to the latest version.

It's still possible that something else is going on but these should be addressed first.

 

[serenadesx]

Thank you so much for your reply. I will try those two, then let you know how it went.

 

[mpilchfamily]

Well eplacing the BIOS chip is not cheap. But you need to go into the bios. You know that first screen that pops up before windows loads. Thats the bios screen. Hitting the Delete key will let you into the bios so you can adjust settings like system time and other hardware settings for CPU and RAM.

Since you've tried another motherboard then i'll second what jdjbuffalo said. Pull the system out and double check the location of your standoffs. If you have more standoffs then mounting holes on the motherboard or if they are in the wrong place then you are shorting the board.

 

[serenadesx]

So you are telling me that if the screws do not go in smoothly, I will short my board?

Will that permanently damage it..?

 

[mpilchfamily]

No if you have more standoffs in place then needed, as in you have 9 screw holes and 10 standoffs then that extra standoff is making contact with the bottom of the motherboards causing problems.

 

[serenadesx]

oh. On the case, there are 9 stand offs, and only 6 screw holes. How would you suggest that i remove contact with them?

 

[serenadesx]

Problems Resolved!

Now the computer boots up to windows.

Theres only one error that shows up - the CPU fan error..

It asks to press F1 to continue, and when I do that, it boots to windows.

Thanks to mpilchfamily for all of your help.

If you can tell me some possible sources of the CPU fan error, i would greatly appreciate it.