[HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

[fullmetaljkt]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

ok , I'll try to do it as well as you say .. These components are very small . I have not many possibilities ! I 'll tell you what will happen to the motherboard !

For the current regulation to 3.3v , I can use this :
" STEP DOWN LM2596S 5V power supply 12V 2A " ?

http://www.ebay.it/itm/Convertitore-...item3ce7305eb1

I wait for your opinion before starting work

Thanks a lot!

[Th3_uN1Qu3]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

That is a SOT-23 transistor and it looks like so: http://gtsemic.com/uploadfile/20140807140911319.jpg

You see how it has 3 pins. Two at the bottom and 1 at the top. You need to remove it (use a hot air station, you may damage the board if you try to remove it with the iron) and solder a wire from a 3.3v supply to where the pin at the top went.

Here is how you find a 3.3v supply in that area. With the board connected to a PSU and powered on, take your multimeter and measure on the capacitors around the Winbond chip (small brown things). Black probe of multimeter to ground (computer case or any black wire from connectors of PSU), and touch red probe to each of the small brown capacitors.

You need to find a 3.3 volt reading on your multimeter. When you have found it, power the board off, solder a thin wire from that point and take it to where the top pin of that transistor was. Then clear CMOS again, power the board back on and be happy.

[fullmetaljkt]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Ok, better reading the instructions I found the transistor to be deleted.
It is valid as I pictured?
Now, you could tell me how to complete the task?
Unfortunately I can not interpret the instructions.

Thanks a lot!

[fullmetaljkt]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Th3_uN1Qu3 Hello, congratulations for howto.
Even in Italy we need your help. :-)

I enclose a picture of my motherboard.
Can you tell me what to do to fix "Chassis intruted ...!" ?
I am deeply grateful to you!
Thanks a lot!

[Th3_uN1Qu3]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Will try and find a solution for you in a few days. Until then, please post some pictures of your board.

[mandinger]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

i have an asus p5kpl-cm with the same problem, i got no problem locating the transistors but it seems did n´t work the same way you described in this post.for example i dont have any voltage measure at the chasis pins, there is three pins , one with 5 v and the others have nothing.maybe is that my board is not like you find the fix.i even try to find a beep of the meter trying all pins with all transistors near winbond chip,and i got no condictivity in any of them i find just a litlle pas of current but with resistance in all transistors , please help if there is a way you can help me i´ll be grateful

[mbahbar]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Just finished fixing this one. Apparently, this is a common issue with all Asus P5 series boards. I first assumed it's a bad BIOS flash or corrupt CMOS settings, as it would go away once after resetting CMOS, but upon the next reboot it would be there again. Same if i changed any BIOS settings and saved them.

I read that people have flashed BIOSes to no luck, and someone pointed towards a transistor on another (older) board, so i proceeded to look for a hardware issue. And i found it. See attachments for fix.

Instructions:

1. Follow directions in pictures
2. Clear CMOS
3. Power board up, redo all BIOS settings
4. Be happy and have a cold one.

This should apply to *all* boards that exhibit this behavior, obviously the parts may be in a different location. Follow these directions to find it if your board differs:

1. Remove jumper cap from chassis intrusion connector (if you're reading this, you already found it's of no use anyway).
2. With the board powered ON, measure with your voltmeter and find the pin of the chassis intrusion switch connector that has somewhere between 1.7v and 3.3v on it.
3. Disconnect board from PSU.
4. Use continuity tester function of your DMM and probe on the SOT23 transistors next to the super IO controller, you should find it beeps on one of them.
5. Power the board back ON and find a 3.3v supply nearby
6. Power board OFF, remove transistor, solder drain connection (it's gonna be the single pad, just like it looks in the picture) to 3.3v supply.

The rest is the same as above.

I'm also going to tell you what causes the issue to appear in the first place in a follow-up post.

thanks man u save my board

[fdsasdf01]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

thx for some knowledge. it'll be handy

[sim0n0]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Same thing with the 1k resistor

[Th3_uN1Qu3]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

That's interesting. No voltage on the chassis intrusion pin, and a fairly low resistance to ground means it should be in the "closed" state, so a chassis intruded error should not pop up.

But maybe your board is configured the other way round. Put a 1k resistor from that 5 volt pin to the chassis signal pin. See if it does anything different.

[sim0n0]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Hi, thanks for your reply, I'm happy to see you on this thread after all this time

Yes I already tried to clear cmos, change battery, clean everything, etc.

The resistance at chassis pin is 1420 ohms

[Th3_uN1Qu3]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

You are supposed to have some voltage on the chassis signal pin. Measure resistance between that pin and ground. The 5 volts is coming from the 5vsb rail of your PSU, and has nothing to do with the issue.

I take it you already tried clearing CMOS and cleaning the dust off the mainboard?

[sim0n0]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Hi, I have the same problem here, asus P5B-E,
worked fine for years,

I read the thread over and over, just to make sure, but I still have question,
I don't have any voltage at the pin #2 is this normal?

Manual say:

-+5VSB_MB,
-Empty
-Chassis signal
-Ground

Is the order 4-3-2-1. +5V being pin 4 or is thie 1-2-3-4, Ground being pin 4?
Anyways I only have voltage at the "+5V" pin, voltage being 4.9V, way more that than the "1.7v and 3.3v" Is this normal? I'm I suppose to have voltage on an other pin (Chassis signal)?

Also there's not transistor with that voltage near my i/O controller, though I have two transistors at 3.3V. (top righ on the pictures), And one "hidden" transistor between the battery and the panel connector (not visible on the picture) at 3.3V

Thanks

[momaka]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Hey Bro can you help me, i have problem whit my mobo?

We can't magically point which transistors needs to be removed. You'll need a multimeter and do a bit of detective work yourself. Read the entire thread, and if still unsure, post pictures of the super IO chip on your board (usually Winbond or ITE if I am not mistaken). Also, point out where your Chassis Intrusion jumper is.

[AdonY]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Hey Bro can you help me, i have problem whit my mobo?

[AdonY]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

hello, i have same problem whit my mobo, i touch jumper and the issue show's.
I have mainboard p5q deluxe and i don't know how to fix this problem, please help me i buy this mobo 1 mouth ago and now not work :'( !

[shahmeer1]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

@Th3_uN1Qu3 thanks for replying I really appreciates that.
Which transistor are you talking about? I will be very helpful if you point it for me on a picture or something.
Thanks again, Im waiting for your answer.

[pushtius1]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Unique, can you help un "consătean" de-al tau?
I have a p5ad2-e premium MB. Can you please point me wich tranzistor to remove and were to sold the wire, or what should i do. Thank you.

[kc8adu]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

good job!
welcome to badcaps!

Hi Th3_uN1Qu3 !

Following your directions I was able to boot an Asus NCT-D motherboard, thank you.

With power ON has been measured 0.7 voltage on pin 2 of chassis intrusion detection jumper, found the same voltage on the drain of one of the seven SOT-23 NPN transistors and the same on a pin of the VIA IO chip. After the complete removal of the transistor I've found zero voltage on the IO chip pin. After three days of intense benchmarking no problems still has been found !

to Th3_uN1Qu3 !!!

[Milky Way]

Re: [HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

Hi Th3_uN1Qu3 !

Following your directions I was able to boot an Asus NCT-D motherboard, thank you.

With power ON has been measured 0.7 voltage on pin 2 of chassis intrusion detection jumper, found the same voltage on the drain of one of the seven SOT-23 NPN transistors and the same on a pin of the VIA IO chip. After the complete removal of the transistor I've found zero voltage on the IO chip pin. After three days of intense benchmarking no problems still has been found !

to Th3_uN1Qu3 !!!