Hi All can any one help ? I have a MSI B450 Gaming Plus Board was working fine when turned off started up next morning and in wont turn on. Briefly for a micro second the red light showing CPU and the lights Gaming Plus light up and fan spins but then its dead. If I pull the power cord out and try again does same thing. I tried to update bios with a USB and the Flash button on the board but it wont run. Are there any schematics or can some point me in any direction of what to test. I Do xbox repairs as a hobby so have a very basic knowledge on repairing stuff but never worked on a motherboard. I have checked no shorts on the 12v & 5v power rails. Any help or guidance or where to go to check would be appreciated. I have ordered a new board so this is just for learning purposes so nothing lost nothing gained thanks.
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MSI B450 Not Posting
- Thread starter MegaZ
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- Joined
- Jun 2, 2017
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| System Name | Best AMD Computer |
|---|---|
| Processor | AMD 7900X3D |
| Motherboard | Asus X670E E Strix |
| Cooling | In Win SR36 |
| Memory | GSKILL DDR5 32GB 5200 30 |
| Video Card(s) | Sapphire Pulse 7900XT (Watercooled) |
| Storage | Corsair MP 700, Seagate 530 2Tb, Adata SX8200 2TBx2, Kingston 2 TBx2, Micron 8 TB, WD AN 1500 |
| Display(s) | GIGABYTE FV43U |
| Case | Corsair 7000D Airflow |
| Audio Device(s) | Corsair Void Pro, Logitch Z523 5.1 |
| Power Supply | Deepcool 1000M |
| Mouse | Logitech g7 gaming mouse |
| Keyboard | Logitech G510 |
| Software | Windows 11 Pro 64 Steam. GOG, Uplay, Origin |
| Benchmark Scores | Firestrike: 46183 Time Spy: 25121 |
What is the brand of your PSU? Did you remove the battery and reinsert it after about 3 minutes?
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| Processor | AMD R7 1700X @ 4100Mhz |
|---|---|
| Motherboard | MSI B450M MORTAR MAX (MS-7B89) |
| Cooling | Phanteks PH-TC14PE |
| Memory | Crucial Technology 16GB DR (DDR4-3600) - C9BLM:045M:E BL16G36C16U4W.M16FE1 X2 @ CL14 |
| Video Card(s) | XFX RX480 GTR 8GB @ 1408Mhz (AMD Auto OC) |
| Storage | Samsung SSD 850 EVO 250GB |
| Display(s) | Acer KG271 1080p @ 81Hz |
| Power Supply | SuperFlower Leadex II 750W 80+ Gold |
| Keyboard | Redragon Devarajas RGB |
| Software | Microsoft Windows 10 (10.0) Professional 64-bit |
| Benchmark Scores | https://valid.x86.fr/mvvj3a |
How many DIMMs on the board? Try with only 1 DIMM in either slot A2 recommend or in B2.
Also look for the clear CMOS jumper on the board and short that for few seconds.
Other things to try is reseat the CPU and try powering on again.
Also look for the clear CMOS jumper on the board and short that for few seconds.
Other things to try is reseat the CPU and try powering on again.
Only one 1 DIMM tried with and without , CPU already taken out and put back in. Didnt see a CMOS jumper will check if it got one.
Cleared CMOS with jumper still didnt start, Tried to load new bios from usb still didnt load it. Will the board start up ie power supply run without a CPU installed ? as All I get is a quick flash of CPU light, board lights and power fan spin. All be it for a split second.
Cleared CMOS with jumper still didnt start, Tried to load new bios from usb still didnt load it. Will the board start up ie power supply run without a CPU installed ? as All I get is a quick flash of CPU light, board lights and power fan spin. All be it for a split second.
Last edited:
- Joined
- Jun 2, 2017
- Messages
- 9,828 (3.39/day)
| System Name | Best AMD Computer |
|---|---|
| Processor | AMD 7900X3D |
| Motherboard | Asus X670E E Strix |
| Cooling | In Win SR36 |
| Memory | GSKILL DDR5 32GB 5200 30 |
| Video Card(s) | Sapphire Pulse 7900XT (Watercooled) |
| Storage | Corsair MP 700, Seagate 530 2Tb, Adata SX8200 2TBx2, Kingston 2 TBx2, Micron 8 TB, WD AN 1500 |
| Display(s) | GIGABYTE FV43U |
| Case | Corsair 7000D Airflow |
| Audio Device(s) | Corsair Void Pro, Logitch Z523 5.1 |
| Power Supply | Deepcool 1000M |
| Mouse | Logitech g7 gaming mouse |
| Keyboard | Logitech G510 |
| Software | Windows 11 Pro 64 Steam. GOG, Uplay, Origin |
| Benchmark Scores | Firestrike: 46183 Time Spy: 25121 |
There is a short of some kind, what doesn't make sense is how it happened. What is the brand of your PSU? One of my first PCs started showing this behaviour and it turned out to be the PSU that was only 2 weeks old but it was a brand called Ultra which is why I have a Corsair HX PSU now.
1 is a corsair 600 (about 2 years old) other is a Ace 850 watt, (6 months old) both do the same thing which must be mean either board issue or CPU just not sure what But it does same thing with out the cpu in. Will it start at least run with cpu out ?