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52482
May 7th, 2009 11:00
Sytem Halted ! Alert ! Incompatible processor detected.
Help if you can. I think I installed the wrong bios because after flashing the bios I only get the posting on the screen of " Sytem Halted ! Alert ! Incompatible processor detected." It will not reboot so I can get into the "Safe Mode". I have the correct bios but I can't get the pc to open the CD to reinstall or a USB for an external install. What can I do to correct the problem? Nothing will work.....no keyboard, CD/DVD, USB's. How can I restore it to the originan setting? Is there a reset in the BIOS memory to restore the original BIOS? Has anyone with the same problem able to correct it & if so what did you do....? Please help.
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booyah4u2002
2 Posts
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May 7th, 2009 12:00
PC is a Dell E510 with a NH720 MoBo, I believe it came with AO4 bios new & was upgraded to AO7 later. I made a mistake by installing AO2 bios & that is when it posted "System halted ! Alert ! Incompatible processor detected." What processor would work for AO2 bios so I may try to reflash to return to original processor. Original processor is Intel Pentium D Duo 2.8 Ghz.
Dev Mgr
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9.3K Posts
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May 7th, 2009 12:00
It would help if you posted what computer you have, which bios you were on, and which bios you updated to.
Also, the processor model wouldn't hurt.
Most likely the only way back is to find a processor that does work with your current bios and then down-flash so your original processor can be used again.
muto
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872 Posts
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May 7th, 2009 13:00
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trujillostm
5 Posts
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February 14th, 2011 02:00
I have a Dell Precision 690 and I updated to A08 version of BIOS.
I have done a Bios reset, and I obtain the same message of incompatible processor.
I can't enter in setup and can't run my Windows 7.
What can I do now?
trujillostm
5 Posts
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February 14th, 2011 02:00
Solvented.
I have do the following: quit the cable power, push/hold the power button for 30 seconds, put now the cable power.
speedstep
9 Legend
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47K Posts
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November 16th, 2017 05:00
The Information seems to vary almost YMMV
DT029 Earliest 690 motherboard revision, not quad capable.
(rejects Xeon E5310)
F9394 Revised 690 motherboard,not quad capable. (
rejects Xeon E5310)
MY171 Revised 690 motherboard,quad capable.
Look for a sticker on the MB with a code like:
CN-ODT029-13740-67S-0044
The version is in the secound Part -ODT029 in this case.
The trick to getting some upgrades to work was to remove the button cell battery on the motherboard for a minute or so and then replace it. When you power on the machine you will be asked to go into setup and set the date and time. After doing this the machine would boot with A06. The problem is that if you ever remove the power cable, or switch off at the wall, then your 690 won’t boot again and it will give the “Incompatible processor detected!” message again.
So while I had a working machine I downloaded the A01 version of the BIOS from ftp.us.dell.com and installed it. After this my machine is fully functional again. I don’t have the time at the moment to do a test of all BIOS versions between A01 and A06 to see where the problem starts.
XEON 5410 tried with biosA07 and MY171. Not working.
XEON 5420 tried will biosA06 and DT029. Not working.
For those of you that don't know, you can get a both a
DT029 and F9394 motherboard 'working' with quad-core CPUs.
For F9394 motherboards: Any BIOS revision can be used, when you get the "incompatible processor detected!" message unplug the machine from the mains and remove the clock battery. Wait for at least 30 seconds before re-inserting the battery and then restore the power. The machine will operate normally up until the point where it is unplugged from the mains, at which point you will have to repeat the procedure.
For DT029 motherboards:
The same as above except you must be running BIOS revision A01
(A02 is a possibility but untested) or lower. If you only have a quad-core chip you will need to find a dual-core CPU to downgrade the machine with, the battery removal trick will not work if you have upgraded the BIOS past A02.
Series Chache Speed FSB Power
X5460 12MB 3.16 GHz 1333 MHz 120W
X5450 12MB 3.00 GHz 1333 MHz 120W
E5450 12MB 3.00 GHz 1333 MHz 080W
E5440 12MB 2.83 GHz 1333 MHz 080W
E5430 12MB 2.66 GHz 1333 MHz 080W
E5420 12MB 2.50 GHz 1333 MHz 080W
E5410 12MB 2.33 GHz 1333 MHz 080W
E5405 12MB 2.00 GHz 1333 MHz 080W