MOVED: MSI K9A2 Platinum No Video

This topic has been moved to AMD64 boards.
https://forum-en.msi.com/index.php?topic=171258.0

 To begin with this was moved to wrong section of forum, this belongs in either 'Retired' section or 'AMD' section not Intel C2D/Q.
 As for caps see badcaps.com ( http://www.badcaps.net/pages.php?vid=2 ) for replacement for online ordering of them, they have been supplying these items for quite a few years or get what you need from a local store if available, you will not get any MSI factory cap kits as they do not offer such repair items for sale.
 My advice would be assemble components and test with a known good PSU and if it runs OK then you know it was the PSU that went belly up. It could be that due to age and bad PSU some caps may be bad but that could be seen easy enough just by close examination of them. badcaps has plenty of pictures for comparison of good vs bad caps.
 What brand and model is the PSU in question?

Similar Messages

  • MSI K9A2 Platinum No Video

    I run a computer repair service out of my home here in the upper peninsula of Michigan. I get an average of 3-4 repair jobs a week. Also buying broken computers to repair and resell. Recently I got a job to repair an MSI PC. The customer had acquired the computer from her ex husband. Her complaint was that the computer was randomly loosing video. My first thought was that the graphics card was going bad. (Also MSI). Upon receiving the computer it was clear that it was not taken care of as it was full of dust and pet hair, and overheating was most likely issue. (shes a dog groomer lol). After a through cleaning plugged everything in and sure enough...no video, everything running as it should be, all fans, all lights on motherboard lit up. I pulled the video card out, put it in another computer, video came on, so i ruled out this as the problem. Tried running with just one RAM stick close to the CPU, nothing, pulled the battery, replaced, video was back, put it all back together and it was running fine. I advised her that the motherboard was on its last leg, in the meantime she had contacted her ex husband, he agreed as the system was over 7yrs old. He would be coming up to bring the rest of her things and would bring her a new motherboard. The new one being an MSI 970A-643. Also with an AMD FX Black Ed. CPU, and 4 sticks of 4gb Corsair XMS 3. But not a new power supply. So installed all of this, the power lead to the CPU was short by 4 pins, so decided to try it that way as it was all she had. On powering up, no video! Then thinking back remembered this issue. So I pulled a power supply from one of my gaming systems. This one had a matching lead. Now everything worked fine. So for payment aside from the original $50 I got for going over it and cleaning it out, I accepted the left over parts. The motherboard, ram, power supply, cpu, and cpu cooler.
    I know this is turning into a long story :(
    Here is why I decided to post here...I have this K9A2 Platinum motherboard. My thought is that it has a bad capacitor near the PCI slots as the graphics card did not work on any of them. But after searching for them have had no luck in finding them. Is there a way to order a set for this motherboard from the factory? This will be my first attempt at repairing a motherboard, and have been waiting for just this type of situation to try.
    Looking at sets for other motherboards I see my investment as being around $20, to me a small price to pay for the satisfaction of knowing I can bring a bad board back to life, and a small price also for the experience gained. And if all else fails, I can pull the CPU and get another board.
    Also before attempting this I am not lost on the fact that it could have been the power supply after all, but my POST card did give these error codes when I was in my first round with it...
    No.1 code 00
    Control to Int 19
    boot loader
    No.2 Code: 00
    (same)
    Signal error
    Check PCU & Power Box
    RST: Invalid
    IRDY: Invalid
    FRAM: Invalid
    At time had yellow light under the graphics card, a green light above it and a white light above it if this helps.
    Any help or advice would be greatly appreciated. I am no expert by any means, I am an HVAC Tech, turned self made computer repair person, and I have never had a customer not get their computer back not working. I never over charge and always get them back within 2 days tops.
    I have read that maybe the PCI slots are bad, can find nothing about changing them or the parts to do this. 

     To begin with this was moved to wrong section of forum, this belongs in either 'Retired' section or 'AMD' section not Intel C2D/Q.
     As for caps see badcaps.com ( http://www.badcaps.net/pages.php?vid=2 ) for replacement for online ordering of them, they have been supplying these items for quite a few years or get what you need from a local store if available, you will not get any MSI factory cap kits as they do not offer such repair items for sale.
     My advice would be assemble components and test with a known good PSU and if it runs OK then you know it was the PSU that went belly up. It could be that due to age and bad PSU some caps may be bad but that could be seen easy enough just by close examination of them. badcaps has plenty of pictures for comparison of good vs bad caps.
     What brand and model is the PSU in question?

  • MOVED: Msi K9A2 Platinum slow boot up on Vista 64 Bit

    This topic has been moved to Vista problems.
    https://forum-en.msi.com/index.php?topic=120556.0
    The problem described is Vista related.

    I experienced similar problems this weekend with my rig.
    I have two WD Raptor drives, 150GB on the promise controller and SATA DVD on SB600. If I started Vista, it would boot, show POST screen, then I would see the initial Windows green bar, but after a minute with lots of disk activity then the system would reboot.
    Next, I would then be promoted to start windows normally, or start with the last known good configuration, sometimes this worked, sometime it did not. This happended for a while, until I managed to install all of the optional and recommended Vista 64bit OS patches and an updated promise raid driver. 
    Once these were installed, my system had no boot problems at all, so I would make sure your promise driver is up to date and that all the Vista 64bit OS patches, updates etc are installed.

  • MOVED: MSI K9A2 Platinum - No POST, No Beeps

    This topic has been moved to AMD64 ATI/SiS/VIA boards.
    https://forum-en.msi.com/index.php?topic=119802.0

    Quote from: Svet on 30-November-10, 21:07:51
    Else test with more powerfull single rail PSU, with at least 32A@+12V

  • Is new MSI K9A2 Platinum DOA?

    Bought a new MSI K9A2 Platinum Version 1 MOBO off eBay, installed with spacers between board and case and installed my current hardware. Power came on but, pc would not post. Monitor kept showing no signal, power and HD LED came on for 1 to 2 seconds and Green and White LEDs on MB came on and stayed on. So I cleared CMOS, took out one video card and NIC so was pretty much down to bare minimum, one video card, one stick ram, CPU, HD (SATA) and MOBO but, still suffered same issue. Is MOBO DOA?
    Existing Hardware from my PC:
    Antec Neopower 500 (500 watts) power supply
    AMD Athlon X2 6000+ (3.02 GHz) (Windsor, 90nm, AM2 (940))
    Cooler Master Aquagate Viva CPU Liquid Cooling System
    2 x 1 GB RAM Mushkin: (XP2-8500, Part Number: 996535)
    1066MHz Latency: 5-5-4-12 Parity: Unbuffered
    Voltage: 2.2-2.35V Pins: 240
    Module: 128Mx64 Chip: 64x8
    2 X ATI Radeon 1950 GT running in Crossfire mode (installed both cards in dark blue ports)
    Fujitsu 300 GB HD SATA
    Sony DVD RW
    Bigfoot NIC model: Killer M1
    ATX Case with 4 X 90 MM Case fans
    Initially thought could be the video cards but, owner's guide and MSI Tech Support state that K9A2 can support up to 16X, so I assume that also means it support PCIe 1.0 as well as PCIe 2.0.
    Have read on MSI forum that power could be the issue but, tend to believe if I take it down to bare minimum (CPU, CPU Cooler, 1 Stick of Ram, 1 Video Card, HD (SATA), 2 X 90mm case fans and MOBO)  that it should have booted up at the point.
    Link to new board, MSI K9A2 Platinum, specs: http://us.msi.com/product/p_spec.asp...tinum&class=mb
    Link to MOBO owner's guide on MSI, http://www.msi.com/index.php?func=do...1&prod_no=1332
    Any help or ideas?
    Thanks in advance

    Boombox,
    Good morning and thanks for putting my concerns to rest, like I said before, I have to upgrade a part at time.  Next piece is AMD Phenom II X4 955 (hopefully gets here NLT Tuesday) with RAM I purchased last month and did not want to fry them first time I boot up the system.   Plus I am on Day 2 since switch out of my K9A and still no issues
    Also I must weigh in on MSI's RMA process, overall the process is pretty smooth, my issue is with the replacement MOBO.  Guess after they tested my old MOBO (NEW OUT OF THE BOX), they had to replace it.  Replacement board was USED (assuming until failure by previous owner) and had some "Cosmetic issues", 1. Copper Cooling tube is slightly crushed not sure what that does to air flow and 2.  Half of the IDE pins were bent, I can't see thing in front of me, so I had to take a digital picture of IDE plug and blow up so I could see which way to bend them back.  Figure there would be some sort of QC before return but, guess not......
    Assuming since it all relates to this post, once I install CPU and RAM will let those that have taken time out of their day to help me, know what my latest status is.  Again Thanks to all of you, hopefully I can pay back your help in the future.

  • MSI K9A2 Platinum - No POST, No Beeps

    motherboard : msi k9a2 platinum
    cpu : AMD Phenom 9950 BLACK EDITION 2.6GHz 4 x 512KB L2 Cache 2MB L3 Cache Socket AM2+ 140W Quad-Core Processor
    gpu : MSI NX8800GT 512M OC GeForce 8800 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 
    ram : OCZ DDR2 PC2-8500 (1066) 2GB x 2   
    psu : PC Power & Cooling S75QB 750W ATX12V / EPS12V SLI NVIDIA SLI Certified (Dual 8800 GTX and below) CrossFire Ready 80 PLUS
    hd : WD sata 320gb
    Hello,
    With the above configuration, I get no beeps nor video display when powering on the PC.  When PC is powered on, CPU fan spins, GPU fan spins, HD makes noise, butcannot power off via power button.  GPU and PSU work fine with another system, as well as the HD.  Tried booting with 1 stick of RAM and changing slot placement - no success.  Tried booting with minimum devices attached - no success.
    I had the same problem with the same board and I obtained an RMA, after experiencing the same problem with the new board I am under the impression that something is wrong with my hardware setup.
    Thank you very much for any suggestions, I've been messing around with the PC for weeks and can't seem to find/produce a solution.  Is it possible I may need to file another RMA?

    Quote from: Jakemo136 on 02-January-09, 01:07:12
    You know, I would agree with you, but the memory is a PC-8500 kit, rated at ddr2-1066, thus I'm not actually overclocking them. I'm attempting to just clock them, if you will, rather than run them underclocked. Happy new year, btw!
    Yes you are. That's heavy OC settings:
    Quote from: Jakemo136 on 01-January-09, 09:52:43
    Okay, got my compy workin again! Lo and behold, it wasn't the board after all. My sincerest apologies. Ordered new ram, OCZ Platinum DDR2-1066 2x2 Gb, plugged it in, and the machine fired right up. There was much rejoicing.
    Anyway, I have a new problem:
        Before my compy died, I had the CPU and RAM overclocked to 3.2 GHz and 1066 MHz, respectively. Worked great. Now, however, I cannot get my system to POST when I try to overclock it to those speeds. The fastest I can get it stable is 3.192GHz, with the following settings:
    CPU FSB: 266
    HT Ratio: x4
    CPU Mult: x12
    CPU Freq: 3192 MHz
    RAM set at 5-5-5-15, FSB/Mem 1:1.66, Adjusted DDR frequency 1064, CPU-Z says 1058, no biggie.
    CPU Voltage: 1.399 V
    RAM Voltage: 2.2 V
    Here's the settings I try for 3.2GHz and 1066:
    CPU FSB: 320
    HT: x4
    CPU Mult: x10
    RAM still at 5-5-5-15, for 1066MHz
    No go at all. Spread Spectrum disabled, Cool N Quiet disabled
    Thanks!
    "I'm attempting to just clock them, if you will, rather than run them underclocked. "
    Only AM2+ CPU can support 1066.
    You use "AMD 5000+ BE", support 800.
    Main Memory
    • Supports Dual DDR2 533/667/800/1066 (1066 for AM2+ only)
    - 4 DDR2 DIMMs (240pin / 1.8V)
    - Supports a maximum memory size up to 8GB.
    http://global.msi.eu/index.php?func=proddesc&maincat_no=1&prod_no=1332

  • MSI k9a2 platinum trouble

        I came home from work yesterday after installing a vista update on shutdown. turned the computer on and walked away. came back and it was blank everything was seemingly on but nothing on the screen. So I had to do a hard reset. Took a few times but finally I got a screen telling me that something on the north bridge I believe (bad recollection of what was on there I was tired and angry) failed due to overclocking... now I had tried to overclock this motherboard a LONG time ago. results were undesirable so I reset it back to factory defaults and uninstalled the overclocking software that came with it. now I was just playing some games and had a critical error (no time to read it) that resulted in the PC not booting up at all no beep no post just turns on everything spins but it seems like it is in a perpetual loop of restarts.. any and all help would be great. Email me if you know how to fix it or if you know for sure I am screwed.
    seems like just the video card is resetting nothing else slows and speed up besides that
        thanks
    sorry
    PC Power and Cooling S61EPS 610W
    AMD Phenom 9500 Agena 2.2GHz 4 x 512KB L2 Cache 2MB L3 Cache Socket AM2+ 95W Quad-Core Processor
    MSI K9A2 Platinum AM2+/AM2 AMD 790FX ATX AMD Motherboard
    CORSAIR XMS2 8GB (4 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)
    HITACHI Deskstar 7K160 HDS721616PLA380 (0Y30006) 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s
    ASUS EAH4870 DK/HTDI/1GD5 Radeon HD 4870 Dark Knight 1GB 256-bit GDDR5 PCI Express 2.0 x16
    running Vista Ultimate 64

     You do not provide enough information about your PC.
                                 >> Posting Guide <<

  • Give me solution , MSI K9A2 Platinum

    my motherboard MSI K9A2 Platinum it seeem die after i flashed 3 times continuosly without restarting the pc dont ask me why i do it, i am just was crazy that day .the program called "afuwin" lastest version. i flashed it  with the last bios 1.4 (A7376AMS.140) ,afuwin seem detect only .rom files but i think this is no matter and i process to flash A7376AMS.140 , the original one is version 1.1, after i restart my pc , there is no video signal  just a black screen , mouse and keyboard is no working, but fan gpu,cpu it seem working. i try to clear cmos by take out the battery and change jumper to clear cmos for 2 min , and nothing. my board is rev 00 when i saw it with cpuz, if that can help..... . but definitelly i think my board is dead. after clearing cmos i also search some information, and there is a trick for ami bios to recover after bad flash or corrupted flash,  is by  floopy you must copy an oficial msi bios  and change it to AMIBOOT.ROM copy it to floopy and boot the pc with the floopy, but is not working for me becuase my floopy seem not read anything and i dont see anthing with my monitor, really desesperated 

    Quote from: BOSSKILLER on 24-April-08, 05:06:18
    Have you removed power cord from the PSU?
    yes i have, also i have put  the PSU to 0 and take cable out from the wall.
    by the way , when the mother boar is running there is a green light in the middle i suppose that is normal??

  • MSI K9A2 Platinum Phenom 9550 slow as hell

    hi guyz
    i just recently put 2gether a new rig at long last, not as grand as some i've seen on AMDzone but its a good start. i was using an old Athlon XP which is far too slow to run pinnacle 12 (video editing s/w) hence the new upgrade. after purchasing the phenom 9550 i was expecting to fly, i mean compared to my Athlon who wldn't. i stuck with XP although i play games vista is too system hungrey so i've heard. anywayz after getting my rig up installing the latest sp3, m/b drivers, bios upgrade the whole works, the performance was almost the same as my Athlon which really freak me out. i splash so much on the new rig n got my old Athlon back
    i've chk on AMDzone n haven't really got any sold solution. i've email to AMD n they replied telling me all the things a newbee wld get confused on. even during boot up is slow, i remove all those fancy interface (graphics) stop all those unwanted staff in services n startup is very minimal. when i start pinnacle for example its real slow. i saw on youtube a guy who showedoff his 9550 n it was flying nothing like mine. i wld appreciate if any wld has any suggestion as to what might b my problem...
    my rig
    MSI K9A2 Platinum (recommended by AMD)
    phenom 9550 x4
    seagate 500GB HDD sata
    EVGA 8800 GTX 768MB graphic card
    Crucial Ballistix DDR2-PC26400 (800) x 4
    700 PSU

    Quote from: Sm3K3R on 05-February-09, 23:21:47
    prince_terry ,this was my first impression too, in the first month.
    After i installed all drivers in the proper order  ,after i assured the RAM is in dual channel ,after i have put the SATA HDD at SATA 1 specs (to make the computer boot up faster ),after i updated to latest BIOS -es ( the video and mobo) ,the computer started to be what it should have been.
    Make sure you have good drivers for the SB 600 ( if your HDD is conected to its SATA ports) ,in XP SP 3 you should use older drivers ,that are not available on the MSI website at this moment (there were available somewhere in the 2008 spring-summer).The package available now doesnt have the PATA drivers(IDE emulation) and this may show poor performance for the drive in games(choppyness).
    On the other hand the 9550 is inferior, in my opinion ,to a X2 6400+.Sure 6400+ is only dual core ,but there is a lot of software that doesnt know what a quad is.
    Also make sure you disable Cool and Quiet in BIOS options and HPET option (recomended OFF for XP) and in On Chip SATA BIOS section under Integrated Peripherals make sure PCI IDE Busmaster option is on (a legacy option that will speed up Windows installation for ex.).
    Also a poor PSU with low voltages may lead to same poor performance,check the voltages (with a digital multimeter) and make sure they are in spec.
    do u hv any good location for the SB600 that i can download from. all my bio update r from MSI website. C&Q has been disable will look into the rest n let u knw the outcome. thanks

  • Are there any MSI K9A2 Platinum Bios version with better V-core adjust?

    Hi everyone 
    I wonder if anyone knows if there are some bios version to MSI K9A2 Platinum there they have change the V-core settings. I think it´s very big step between the different V-core setting.
    In my bios (v.1.3) i have this settings at V-core. Auto=1.32v (AMD 5000+ BE) then 1.36, 1.39, 1.44, 1.49, 1.51. etc.
    So, if anyone knows if there are som bios version that have better options to the V-core settings i would be grateful 

    Quote from: AaronYuri on 05-April-08, 18:33:22
    Moved it here, as you don't overvolt a chip to run it at stock.
    Okay. I´m sorry if i post it wrong. I have change my profil now 

  • I have a MSI K9A2 Platinum Motherboard. Bios version 1.8 overclocking

    I have a MSI K9A2 Platinum Motherboard. Bios version 1.8
    AMD Phenom II X4 940 3.0 GHZ that I have over clocked to (17.5) 3.4Ghz
    However anytime I go over that to say multiplyer set to 18 (3.5 ghz) it still runs but crashes when running high end games. I know I have to go in an adjust voltages. However, in the cell menu I can't access the CPU voltage areas I hit enter but nothing happens. It tells me Grey is defualt, White is stable and red is the obvious not recommended setting, but again I can't access it.  Is there something I need to disable before I mess with the voltages?
    I know that doing any of this could fry the chip I have liquid cooling pretty much this idles at 28 deg Celcuis, that is with it over clocked so I know I have som room and know I should only up the vltage slightly. I just need to know how to do it.
    I also wanted to adjust the FSB from the current 200 to 270 which I was told is possible with this board and also that is where it should run stable. Again I just need to know how to access these things in the Bios. If its a bios issue I can update to the next one,1.9, but did not see the need to do so. Anyways any help is greatly appreciated. I am familar with overclocking just not with this motherboard. Any user who uses MSI who could offer assitance would be greatly appreciated. Thanks.
    Windows 7 64bit Proffesional.
    AMD Phenom II X4 940 3.0Ghz (OC to 3.4)
    Liquid cooling
    MSI K9A2 Platinum Bios release 1.8
    6 GB of DDR2 (800) Memory
    2GB Radeon 4870 X2 FO
    Power supply= 850 watts

    Use the keyboard number pad + or - keys.

  • MSI K9A2 Platinum + Phenom 9600 + 2GB Mushkin XP8500 cannot boot into windows

    Hi!
    I am building my computer using the Spider platform and I ran across problems during booting into windows.
    I am using MSI K9A2 platinum with Phenom 9600 and Mushkin 2Gb kit XP8500 ddr2 1066. I have no problem installing windows xp.
    The problem starts when I install the utility and drivers that come on a cd from MSI, my computer requests to re-boot after installation and after
    that it will not boot into windows. I can get to the windows logo and then the system reboots right away.
    I checked the bios and it shows that the ram is running at 800mhz and i have tried running with just 1 stick and im getting the same problem every time.
    Anyone knows how to resolve this?
    thanks!

    Quote from: nirianto on 22-February-08, 01:32:52
    Everything is stable now...I guess installing the driver from the MSI website is the best thing to do right now
    I notice that my ram is underclocked to 800mhz instead of 1066mhz...I have update the motherboard BIOS to v1.2 and i checked that the ram is running on unganged mode...I tried adjusting the spd to 5-5-4-12 with voltage of 2.2v as suggested by the mushkin ram itself
    Any idea?
    "I have update the motherboard BIOS to v1.2 and i checked that the ram is running on unganged mode..."
    That is the correct mode.
    "I notice that my ram is underclocked to 800mhz instead of 1066mhz..."
    1066 is not officially certified by JEDEC, also your memory probably don't have SPD configuration for that freq.
    Contact to Mushkin for more details.
    "I guess installing the driver from the MSI website is the best thing to do right now"
    Yep 
    "Everything is stable now.."
    nice :smiley:

  • BootMGR missing (with a twist) MSI K9a2 Platinum

    Hey guys I am new here, and I apologize for bringing up a problem with millions of tutorials but I am yet to find one that applies to my specific case.
    So I turned my computer off last night, and attempted to turn it on this morning... Btw I am dual booting with Windows 7 64 Ultimate, and then on some partion somewhere I have Windows 7 RC. I will attempt to describe the scenario with these pictures:
    So I couldn't' embed the images properly, so here is the album:
    http://img836.imageshack.us/g/img1657q.jpg/
    The first two pictures are without the Windows 7 Disk inserted. And notice at the starup repair screen, there is no HDD detected, however at boot without the Windows 7 disk, both of my HDDs are detected.
    My system:
    Msi K9a2 Platinum
    WD 500gb @ 7500RPM (I understand my main copy of windows is installed here)
    WD raptor @ 10000RPM
    nVidia Gtx260
    850w PSW
    samsung DVD-RW drive
    Audigy sound card
    AMD ahtlon 6400+ dual core
    I also put the driver CD that came with the motherboard into my PC when I was in the windows repair screen. I attempted to search for some sort of driver, but no luck..
    I am sorry and thank you!
    Luke

    Thanks for the link to the drivers!
    I have burned them to a disk an attempted to load them during the windows start-up recovery. But when I press "Load Drivers" and search the CD (with the given drivers) I cannot find a file that will work.. When I click on a given file, windows says something along the lines of "This file cannot be used".
    What am I doing wrong?
    Thanks!
    Luke 

  • Msi K9a2 platinum with memory

    Dear,
    I have bought a MSI K9a2 platinum with a AMD Phenom 9600. I have placed 2 sets of these memory G.E.I.L GX22GB6400UDC4. In the manual they said that I have to change the memory settings in the bios to run at 4-4-4-12.
    When I look in the bios, I see a lot of memory settings to change. Which one do I need to change to run at these settings?
    Thanks,
    Rafael

    1. If 40 represents tRC (which it probably does not): it's too high. Set this value to Auto in your BIOS, and set tRC to 20 or 21.
    2. You can't, there isn't any setting for it. But since you have four sticks of memory that fill up all of the DIMMs, there is no other option than to run it in dual channel. Software might detect it as single channel because of the Unganged Mode setting, which creates two separate 64 bit channels (but is obviously still dual channel)...

  • MSI K9A2 Platinum stopped working

    Hi, guys.
    I have
    MSI K9A2 Platinum
    AMD Phenom 9950 Quad-Core
    Gigabyte Radeon HD 4850 1GB
    Corsair Value S. PC5300 DDR2 4GB * 2
    and been using it fine for quite some time. I was dabbling in 3DS Max and left a big render job on overnight. The next day my system was dead. When I press the power button the CPU fan spins for 1 second and the LEDs flash on and off. I read these forums and came across this thread: http://forum.msi.com.tw/index.php?topic=113170.0. The exact same problem. And he fixed it by replacing the PSU. So I thought I should give it a try and replaced my Chieftech 550W with an XFX 650W, but the problem persists. I am thinking it is the CPU since it happened during a render. Any thoughts?
    regards
    Kevin

    Quote
    When I press the power button the CPU fan spins for 1 second and the LEDs flash on and off.
    Hmm, sounds eeriely familiar to me... what happens if you disconnect the 4pin CPU power connector? Does the fan stay spinning, and the LEDs on the board stay illuminated (but system still does not POST)?
    I had a K9A2 Platinum board for some time, and the same thing happened to me... tried different PSU, CPU and RAM, but it turned out to be a problem with the board's voltage regulator, and I ended up replacing the board...

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