Question for a Precision 690 Quad-core owner...

Desktop

Desktop
Desktop computer Forums (Audio, General Hardware, Video)

Question for a Precision 690 Quad-core owner...

  • Yes - I know. Why should I create new topic - if all informations are here already ?

  • 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    

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

  • SpeedStep - thank you for your reply, but I think all of this was mentioned before - and I know this - but my question was about something else - if anybody know something about HR002 revision of the motherboard ?

  • The HR002 must be a newer version of the board.  I don't recall it being mentioned.

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

  • Just wondered if anyone has attempted to make an external push button switch that resets the BIOS after the mains power has been lost, in order to avoid having to open the case and remove the battery? Would it be possible to use a 'push to close' switch to temporarily short together the RST pins; or would it need to be 'push to open' switch wired in series with the battery onto the battery connectors...a more difficult mod to do?

    Tennant

  • I'm not aware that this board has or had a clear cmos Jumper.

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

  • SpeedStep,

    Do you have any way to check what is new ?

    Support for other processors ? More memory ?

    thanks

  • You should not have to reset the bios after losing power. If you do then the battery is dead.

     HomeBuilt SandyBridge P8P67 i7 2600k @ 4.5 ghz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
    Dell Studio XPS 1645  Window 7 Pro

    Forum member since 2003

  • robinet

    SpeedStep,

    Do you have any way to check what is new ?

    Support for other processors ? More memory ?

    thanks

    No I don't  I'm not Dell and Users don't have access to that kind of engineering data.

    Dell does not make that public.

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

  • I have to reset the bios because I have upgraded to dual Quad processors and get the 'Incompatible processor detected' message if the power is removed when on standby. I have an UPS to minimise the amount of times it happens; but unfortunately living in a rural area means we get quite a few power cuts.

  • Tennant, if you have DT029 - try to downgrade BIOS to A01.

  • Is there a downside to BIOS A01? Presumably there must have been some improvements/fixes in later BIOS versions that will be missing?

  • Hello,

    Yes there is, the quadcore cpu e5345 is recognized as dual core e5345 with 4mb cache instead of 8mb.

    but it runs on my ODTO29

  • Recently, I purchaged 2 xeon dual quad x5355, replacing xeon dual 5050. I had incompatible processors alert when boot up with Bios version A08. I had to downgrade Bios to version A01, and it work. However Bios A01, you can only run from Dos.

  • Here is the tool to downgrade to Bios A01 on Dell 690:

    www.biosflash.com/.../bios-boot-usb-stick.htm