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Thread: Abit AN8 Ultra based machine intermittently won't POST/boot

  1. #1
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    • 8bit's system
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    Abit AN8 Ultra based machine intermittently won't POST/boot

    Hi folks,

    Recently I built a machine for a friend, specs as follows:

    Athlon64 3500+ (Venice)
    Abit AN8 Ultra
    2x 512Mb Crucial Ballistix PC3200 (I think, it was the ones listed as compatible with the mobo)
    Radeon X300 PCI-E graphics card
    Maxtor 80Gb + 200Gb HDDs

    Initially (as some of you may recall) we had problems with the RAM as we were using Elixir stuff. The RAM tested fine in my PC so it was changed for the Crucial stuff listed above which seemed to solve the constant blue-screening.

    However, it always had a slight problem in that sometimes when powered on, rather than go through the usual POST, it freezes with the HDD LED stuck on. The video card obviously isn't getting initialised either since the monitor still says "no signal" and goes back into standby mode. The error code on the readout on the board itself isn't listed in the manual. I can't remember exactly what code it is and I haven't got the machine here just now to find out but I'll post it here when I do.

    We tried changing the PSU, were using a cheapo one that came in the case but have since swapped it for an Akasa PaxPower which I used to use in my own machine with no problems at all. Still the same problem.

    Sometimes it's worse than others, yesterday it took him about 25 attempts to get the machine to start. Pressing the reset button never seems to work, only holding in the power button until it cuts power then powering on again will work, but usually not until after a few attempts. Occasionally it will start up with no problems.

    There's nothing really non-standard about the machine and I'm completely stumped. Anyone got some ideas?

    TIA
    8bit


    "shiro" - Windows 10 Home x64 :: Intel i7-6700K :: Corsair Hydro H90 :: MSI Z170A-G43 Plus :: 2x 8GB Kingston HyperX :: Sapphire R9 390 Nitro :: Crucial MX100 (512GB) :: WD Caviar Black (1TB) :: Lite-On BD-ROM :: Corsair Carbide Air 540 (white) :: LG 29UM67 21:9 2560x1080 :: Logitech G5 :: Func KB-460 ::

  2. #2
    Resident abit mourner BUFF's Avatar
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    The POST code on the LED would help.
    Check the RAM timings & Vdimm set, you are better doing it manually than using Auto or by SPD.

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    Could be with the Maxtor Drive with the mobo chipset. Got one and it is not working too well...

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    I find mine doesnt boot if I have my USB hub plugged in...

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    • 8bit's system
      • Motherboard:
      • MSI Z170A-G43 PLUS
      • CPU:
      • Intel i7-6700K
      • Memory:
      • 2x Kingston HyperX Fury Black (8GB)
      • Storage:
      • 1x Crucial MX100 512GB, 1x Western Digital Caviar Black 1TB (WD1001FALS)
      • Graphics card(s):
      • Sapphire AMD R9 390 Nitro
      • PSU:
      • Corsair RM650x
      • Case:
      • Corsair Carbide Air 540
      • Operating System:
      • Windows 10 Home
      • Monitor(s):
      • LG 29UM67 29", 21:9, 2560x1080
      • Internet:
      • PlusNet Fibre
    Quote Originally Posted by BUFF
    The POST code on the LED would help.
    Check the RAM timings & Vdimm set, you are better doing it manually than using Auto or by SPD.
    I *think* it's 0.4. (as in, it's got the dots at the bottom of each digit). As I said tho, it's not listed in the manual, at least not the printed one that came with the board.

    Also worth pointing out is that I installed the latest BIOS 2 weeks ago, or whatever one was the latest at that time. It didn't help matters.

    There's no USB hub plugged into the machine AFAIK. I'll try another hard drive but the only spare I have is a 120Gb IDE Maxtor. Will it make much difference if it's an IDE as opposed to SATA?

    Cheers so far
    8bit


    "shiro" - Windows 10 Home x64 :: Intel i7-6700K :: Corsair Hydro H90 :: MSI Z170A-G43 Plus :: 2x 8GB Kingston HyperX :: Sapphire R9 390 Nitro :: Crucial MX100 (512GB) :: WD Caviar Black (1TB) :: Lite-On BD-ROM :: Corsair Carbide Air 540 (white) :: LG 29UM67 21:9 2560x1080 :: Logitech G5 :: Func KB-460 ::

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    Resident abit mourner BUFF's Avatar
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    0.4 usually is a memory initialisation problem but it can be either the system RAM or the gfx card memory.
    Try a single DIMM, swapping slots, making sure that they are fully inserted etc.

    MSI P55-GD80, i5 750
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  7. #7
    Throbbing Member
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    • 8bit's system
      • Motherboard:
      • MSI Z170A-G43 PLUS
      • CPU:
      • Intel i7-6700K
      • Memory:
      • 2x Kingston HyperX Fury Black (8GB)
      • Storage:
      • 1x Crucial MX100 512GB, 1x Western Digital Caviar Black 1TB (WD1001FALS)
      • Graphics card(s):
      • Sapphire AMD R9 390 Nitro
      • PSU:
      • Corsair RM650x
      • Case:
      • Corsair Carbide Air 540
      • Operating System:
      • Windows 10 Home
      • Monitor(s):
      • LG 29UM67 29", 21:9, 2560x1080
      • Internet:
      • PlusNet Fibre
    Quote Originally Posted by BUFF
    0.4 usually is a memory initialisation problem but it can be either the system RAM or the gfx card memory.
    Try a single DIMM, swapping slots, making sure that they are fully inserted etc.
    Hi again,

    Haven't had a chance to test the memory etc. yet, should manage to get a look at it this evening. Had another question tho - if the system RAM checks out OK, is there any way of testing the graphics card memory?


    "shiro" - Windows 10 Home x64 :: Intel i7-6700K :: Corsair Hydro H90 :: MSI Z170A-G43 Plus :: 2x 8GB Kingston HyperX :: Sapphire R9 390 Nitro :: Crucial MX100 (512GB) :: WD Caviar Black (1TB) :: Lite-On BD-ROM :: Corsair Carbide Air 540 (white) :: LG 29UM67 21:9 2560x1080 :: Logitech G5 :: Func KB-460 ::

  8. #8
    Resident abit mourner BUFF's Avatar
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    Unfortunately, this is where having spare hardware comes in handy to swap around.
    If you haven't already, post in the Abit 939 nVidia chipset board forums with your problem.

    MSI P55-GD80, i5 750
    abit A-S78H, Phenom 9750,

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