Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 2 of 2 FirstFirst 12
Results 11 to 16 of 16

Thread: B75M-DGS No Power Up




  1. #11
    billybobjcv is offline Junior Member
    Join Date
    Feb 2013
    Location
    USA
    Posts
    5

    Default Re: B75M-DGS No Power Up

    I have been using the power button on the case - but you are right, maybe I can just short the power button header on the Mobo and see what happens. Right now I am getting absolutely nothing when the 24 pin PSU connector is plugged in No bump on the fan at all and no power anywhere that I can see. It acts like the board is not closing the circuit for the PSU like when I'm using the paper clip. My DMM has a dead battery, but I'll resolve that today so I can check for voltage more thoroughly.

    Do any of the other other header pins need to be shorted - like the reset switch or anything? Or is it just the power button?

    I also brought home a Dell i5 workstation from work, so I will hopefully be able to swap the CPU and perhaps use a different PSU to narrow it down and confirm it is the board.

  2. #12
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
    Dec 2008
    Location
    Tacoma, WA. [USA]
    Posts
    7,811

    Default Re: B75M-DGS No Power Up

    Disconnect the Reset switch connector wires before you momentarily jumper the Power pins.
    If your power supply has 2 4-pin ATX_12v cables, make sure that the correct cable is plugged into your ATX12V1 motherboard connector.
    Are you using the stock Intel cpu cooler? Verify that your cpu cooler is properly installed.

    Your brand new psu might be defective, swap power supplies and retest before swapping processors.
    Your motherboard will not boot unless the ATX12V cable is connected to your motherboard.
    You will need at least one memory module installed for your system to boot.
    Do you have a case speaker connected to the motherboard?

    Do NOT put your anti-static bag under the motherboard,
    the bag is electrically conductive. Same thing applies for an anti-static mat.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  3. #13
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
    Dec 2008
    Location
    Tacoma, WA. [USA]
    Posts
    7,811

    Default Re: B75M-DGS No Power Up

    If your keyboard and mouse have usb connectors, make sure that they are connected to usb 2.0 ports, not usb 3.0 ports.
    You might need to try using a PS/2 keyboard and mouse.

    For now, disconnect your mouse, your goal is to be able to post and boot into the bios.
    Disconnect your hard drive and optical drive for now.

    Verify that your monitor and video cable work on the other system.
    You might want to test your new Corsair psu in the other system.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  4. #14
    billybobjcv is offline Junior Member
    Join Date
    Feb 2013
    Location
    USA
    Posts
    5

    Default Re: B75M-DGS No Power Up

    This has not been a good day!

    I pulled a different brand new motherboard (MSI) from a computer and put my i3 in it and hooked it to the Corsair PSU. I jumpered the power switch pins and turned on the PSU. It came on! At that point, I really thought we had it licked. I then plugged in a monitor to see if I could get a post. It came on for a couple of seconds - PSU & CPU fans spun - then it shutdown. After that, no matter what I connected/disconnected, it would come on for a second, then shutdown.

    I then put a known good i5 CPU into the MSI motheboard and powered it from a known good PSU. I immediately got an acrid smell. After quickly shutting down, the smell seems to be coming from a capacitor on the board near the PSU connector. I put the known good i5 back in the computer it came from with it's known good PSU - and they still work fine. Whew!

    So - now I have 2 motherboards - the ASrock that is still an unknown quantity and the MSI that seems to have been smoked. And everything else is also still an unknown quantity. After working on this all day - all I managed to do was let the smoke out of a brand new MSI mobo.

    I'm going to try to hunt down a case speaker - I think I have one around here somewhere.

    In 20+ years of messing with HW, I've never had this much trouble with a build!

  5. #15
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
    Dec 2008
    Location
    Tacoma, WA. [USA]
    Posts
    7,811

    Default Re: B75M-DGS No Power Up

    At this point I'd first try to load each psu to 50 - 75 watts for 5 minutes or longer using 12 volt automotive bulbs and whatever I could find to put a partial load on the 5 volt and 3.3 volt rails. I wouldn't want to risk any computer hardware components for this load test until I knew that each psu is OK. For the 12 volt loads, I'd use the ATX_12v connector, one pci-e video connector and the 24-pin main psu connector.

    I've got one of Newegg's $15 - $20 psu testers but it's little more than an accurate, quick and dirty, convenient voltage tester that lets me quickly verify any or all voltages on each type of psu connector. I tested one of my power supplies when the psu tester arrived and let it test the psu for 10 minutes and the psu tester barely got warm. I'm going to repeat my tests with my spare psu connected to my UPS so that I can see how many watts the psu is drawing during the test.

    Sorry to hear about your bad luck.
    Hopefully things will go smoother when you continue.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  6. #16
    Join Date
    Feb 2013
    Location
    Texas
    Posts
    1

    Default Re: B75M-DGS No Power Up

    Quote Originally Posted by profJim View Post
    If your keyboard and mouse have usb connectors, make sure that they are connected to usb 2.0 ports, not usb 3.0 ports.
    You might need to try using a PS/2 keyboard and mouse.

    For now, disconnect your mouse, your goal is to be able to post and boot into the bios.
    Disconnect your hard drive and optical drive for now.

    Verify that your monitor and video cable work on the other system.
    You might want to test your new Corsair psu in the other system.
    I just purchased this motherboard too, along with a new CPU. I got everything installed, turned the computer on, and got the Asrock splash screen with the list of options to go to BIOS, set the boot order, etc. Immediately after that, it goes to a message saying that Windows didn't boot properly, and it could be due to new hardware. It recommends booting to the last known good configuration if that's the case, and it also presents the usual Windows boot menu (safe mode, start normally, etc.).

    As is the case with the OP, the wireless USB keyboard wasn't recognized, so I couldn't choose any of the options. When the counter ran out, the Windows splash screen came up, but instead of going fully into Windows, it jumped back to the Asrock splash screen, and started the whole process over again. it does this over and over. I followed your advice about disconnecting the hard drive- the optical was already disconnected because it's IDE and the motherboard has no IDE connector- and I was able to get the BIOS, and use the keyboard and mouse. The problem is, I don't know where to go from there. I checked the USB configuration, and USB 2.0 is enabled. Something called "Boot failure Guard" is also enabled, but there is no real explanation of the effect of this feature in the BIOS or the manual. It keeps a count of the number of boot failures, but I don't know what it does beyond that. Is it giving me the error message before it gets to the point where the USB function is initiated?

    I got the new MB and CPU because my computer would power up for a few seconds, then go off, and nothing would appear on the screen. I did the paperclip test on the power supply, and it worked. I figured the hard drive wasn't the problem, because as far as I could tell, the power would cut off before the hard drive kicked in. I didn't have any way to determine if the MB or CPU was the problem, so I replaced both. Do you think using a PS/2 keyboard would help in my case? Thanks.

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •