Solved

Gigabyte GA-P55A-UD6 starts and stops

I have just built a Gigabyte mobo GA-P55A-UD6 USB3 SATA-6G system with an Intel Core I5 760 2.8 GHz processor and 8 Gb (4x 2X2 Gb) DDR3 PC3-10600 RAM with a Crucial 128Gb RealSSD C300 Sata 6 2.5"main drive and 2 x 1 Tb Samsung Spinpoint F3 7200rpm hard drives for data storage, using a TP 750 watt Antec Blue PSU in a Coolermaster CM690 II Advanced case.
Although it has worked perfectly since, from the first power up it runs for a few seconds, powers down, and a few seconds later restarts and continues normally. Is this normal behaviour, or is there something I can change in the BIOS that would make it start up in one go without adverse effect?
13 answers Last reply Best Answer
More about gigabyte p55a starts stops
  1. I had this issue once with my PC. I solved it but dont remember how, as it was a long time ago in my P4 days.

    But you should start looking at cable connections, especially the power connection from PSU to the motherboard and the cabinet to the mobo (the small wires which are for the cabinet's buttons).
  2. I had this once and never resolved it but it didn't appear to cause any problems other than wear and tear since booting up twice is silly.

    It was with an x3110(e8400) and gigabyte board, since there is another guy on the forums with the same issue he's posting and a gigabyte board I have a feeling it may be something configurable in the BIOS or an annomoly they have.

    I know I didn't answer the question but I'd suspect the mobo to be the culprit of this PITA.
  3. Please explain - "8 Gb (4x 2X2 Gb) DDR3 PC3-10600 RAM??

    This seems like you are mix-matching RAM and/or Dual Channels.
    There's 'no option' for 3 sticks:
    {assuming 4GB + 2GB + 2GB} - Try pulling the {4GB stick}


    Please post the part-number(s) and/or link(s) to ALL of your RAM.
  4. Thank you for your reply.
    There are 6 memory slots, 4 being populated by 4 GB memory kits each consisting of 2 x 2 GB 240 pin DIMM single sided modules in DDR3_1 and DDR3_2 and DDR3_4 and DDR3_5 respectively for each kit of 2 modules.
  5. I should have looked-up your MOBO vs playing the assume card.

    Change the positions to:
    {Set 1 Matched Set} DDR3_3, DDR3_2
    {Set 2 Matched Set} DDR3_6, DDR3_5

  6. If that diagram is correct, it looks to me that peterjd65 has those singe-sided memory modules in the correct slots.
    Have you checked the modules one at a time?
  7. ^I've seen the use of the "Blues" fix the problems...the $100 dollar question is - Did that fix the problem?


    Otherwise, the OP needs to post the part-number and/or link the RAM. I would need to verify that the RAM used is either Certified or Tested for the MOBO.

    Certified - http://www.gigabyte.com/products/product-page.aspx?pid=3234#memory%20support%20list
  8. spooky2th said:
    If that diagram is correct, it looks to me that peterjd65 has those singe-sided memory modules in the correct slots.
    Have you checked the modules one at a time?

    Do you mean remove one pair of matched memory and see if it boots normally without the failed attempt?
  9. jaquith said:
    ^I've seen the use of the "Blues" fix the problems...the $100 dollar question is - Did that fix the problem?
    http://www.gigabyte.com/fileupload/product/2/3234/1238.jpg

    Otherwise, the OP needs to post the part-number and/or link the RAM. I would need to verify that the RAM used is either Certified or Tested for the MOBO.

    Certified - http://www.gigabyte.com/products/product-page.aspx?pid=3234#memory%20support%20list

    What does the reference to the "blues" mean?
    The memory material box states CT2KIT25664BA1339.000 and description says "Upgrade for a Giga-Byte GA-P55A-UD6 system. 2-2GB 240 PIN DIMM 256Mx64 DDR3 PC3-10600 Kit of 2 CT25664BA1339.M8SFA (2 OFF)
  10. Best answer
    Mix-Matched RAM is probably the root cause. Most sets are either "Hand" or "BIN/Machine" matched into REAL Sets.

    So to sum up what you have:

    MATCHED Dual Channel Kit {CT2KIT25664BA1339} 2x2GB
    link - http://www.crucial.com/store/partspecs.aspx?imodule=ct2kit25664ba1339
    UNMATCHED Two (2) non-Kit {CT25664BA1339} 1X2GB + 1X2GB
    link - http://www.crucial.com/store/partspecs.aspx?imodule=CT25664BA1339

    What I clearly meant, per the MOBO photo above, is as I said I have seen "work" is moving the "sets" to BLUE DIMM slots:
    {Set 1 Matched Set} DDR3_3, DDR3_2
    {Set 2 Matched Set} DDR3_6, DDR3_5

    Problem, you are trying to run (2) UNMATCHED as a Dual "Set" -> OFTEN this does NOT work. Try the following:
    Install ONLY {CT2KIT25664BA1339} in DDR3_1 & DDR3_4

    Next, install ONLY {CT25664BA1339} in DDR3_1 & DDR3_4

    Next, "Break" the Pairs:
    {Set 1 Mix-Matched Set} DDR3_2, DDR3_1
    {Set 2 Mix-Matched Set} DDR3_5, DDR3_4

    The "smartest" choice is to get another MATCHED Set of {CT2KIT25664BA1339}.
  11. peterjd65 said:
    Do you mean remove one pair of matched memory and see if it boots normally without the failed attempt?



    Yes, try each stick one at a time and see if they are OK. And you should have all sticks matching each other exactly.
  12. jaquith said:
    Mix-Matched RAM is probably the root cause. Most sets are either "Hand" or "BIN/Machine" matched into REAL Sets.

    So to sum up what you have:

    MATCHED Dual Channel Kit {CT2KIT25664BA1339} 2x2GB
    link - http://www.crucial.com/store/partspecs.aspx?imodule=ct2kit25664ba1339
    UNMATCHED Two (2) non-Kit {CT25664BA1339} 1X2GB + 1X2GB
    link - http://www.crucial.com/store/partspecs.aspx?imodule=CT25664BA1339

    What I clearly meant, per the MOBO photo above, is as I said I have seen "work" is moving the "sets" to BLUE DIMM slots:
    {Set 1 Matched Set} DDR3_3, DDR3_2
    {Set 2 Matched Set} DDR3_6, DDR3_5

    Problem, you are trying to run (2) UNMATCHED as a Dual "Set" -> OFTEN this does NOT work. Try the following:
    Install ONLY {CT2KIT25664BA1339} in DDR3_1 & DDR3_4

    Next, install ONLY {CT25664BA1339} in DDR3_1 & DDR3_4

    Next, "Break" the Pairs:
    {Set 1 Mix-Matched Set} DDR3_2, DDR3_1
    {Set 2 Mix-Matched Set} DDR3_5, DDR3_4

    The "smartest" choice is to get another MATCHED Set of {CT2KIT25664BA1339}.


    I have tried removing sticks from 1 and 2 with 4 and 5 in place.
    also removed 4 and 5 with 1 and 2 in place
    only one stick in 1 all others empty
    only one stick in 4 all others empty (different stick to the one used in previous test)
    all blues populated only
    Same stop after 2 seconds and normal start commencing after approx 5 secs
    Thanks for your help.
  13. Best answer selected by peterjd65.
Ask a new question

Read More

Gigabyte Motherboards