Solved Please give advice on replacement motherboard

So hey, I just got a Thermaltake Toughpower XT 675 Watt and am running my computer and it's stable and not shutting down. I bought an ASRock M3A770DE that supports AM2, AM2+, and AM3 but it uses different memory than the K9 Platinum (DDR3) so I'm gonna keep it and build another machine.

I still want to know how a computer is using MORE power in normal mode, enough to shut it down with a bad PSU.

Sorry if I am beating a dead horse with a 2X4.....But this really intrigues me especially when I'm damn handy with a volt meter and a soldering iron :)

Want to shout out a HUGE thanks to everyone that helped me out on this. It's nice that the PSU was the culprit....I like that Thermaltake PSU and wont ever buy junk again...even if backed against the wall (Mother Russia)

Cheers!
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64QuadCore AMD Phenom II X4 B45, 3100 MHz4GB Kingston HyperX DDR3 1600MHzMSI R5770 Hawk 1GB GDDR5
OS
Windows 7 Ultimate x64
CPU
QuadCore AMD Phenom II X4 B45, 3100 MHz
Motherboard
ASRock M3A770DE
Memory
4GB Kingston HyperX DDR3 1600MHz
Graphics Card(s)
MSI R5770 Hawk 1GB GDDR5
Sound Card
M-Audio Delta 1010 PCI
Monitor(s) Displays
2X Acer 22" LCD
Screen Resolution
1680X1050
Hard Drives
2x Hitachi 7200RPM SATA 500GB
1x Seagate Barracuda 7200RPM 500GB
PSU
Thermaltake 675watt 80 Bronze
Case
Generic
Cooling
Thermaltake SpinQ 360
Mouse
Logitech G9 Laser
Good to hear that you got everything up and running. Now that you have a new motherboard you can perform an easy test with your old PSU to see if that was the root of your unexpected shutdowns. Just hook up the old PSU and see if you are still experiencing the same problem as before.

To answer your question, with no drivers being loaded in safe mode your computer will use less power. Just take your video card for example. In safe mode it runs at a very low SVGA 800x600 with the bare minimum of 256 colours. Once you boot into Windows, it’s bumped up to HD 1920x1080 (assuming that you have a HD monitor) with 16 million colours. Even though the GPU isn’t taxed like in a game, it is working a lot harder to process that resolution and colour depth, therefore using more power. Hope that helps.
 

My Computer My Computer

At a glance

Windows 7 ProfessionalIntel i7 4790K32 GB G.SKILL TridentX F3-2400C10D-GTXEVGA GeForce GTX 980 Superclocked X2 SLI
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Misfits Machine!
OS
Windows 7 Professional
CPU
Intel i7 4790K
Motherboard
ASUS Maximus VII Hero
Memory
32 GB G.SKILL TridentX F3-2400C10D-GTX
Graphics Card(s)
EVGA GeForce GTX 980 Superclocked X2 SLI
Sound Card
Teac UD-501 External USB DAC/Bryston BHA-1 Headphone Amp
Monitor(s) Displays
BenQ BL3200PT
Screen Resolution
2560x1440
Hard Drives
Samsung 850 Pro Series 256GB SSD
Western Digital Red 3TB
PSU
Corsair RM Series Gold 1000W
Case
Corsair Carbide Series Air 540
Cooling
Corsair Hydro Series H110
Keyboard
Corsair Vengeance K70 - Cherry MX Red/Razer Orbweaver Elite
Mouse
Razer DeathAdder Chroma
Yeah that Thermaltake PSU is freaking nice. 80 Bronze, nice modular, plenty of extra cables, nice wire ties and a bag to keep extra stuff in. Won't be buying junk ever again.
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64QuadCore AMD Phenom II X4 B45, 3100 MHz4GB Kingston HyperX DDR3 1600MHzMSI R5770 Hawk 1GB GDDR5
OS
Windows 7 Ultimate x64
CPU
QuadCore AMD Phenom II X4 B45, 3100 MHz
Motherboard
ASRock M3A770DE
Memory
4GB Kingston HyperX DDR3 1600MHz
Graphics Card(s)
MSI R5770 Hawk 1GB GDDR5
Sound Card
M-Audio Delta 1010 PCI
Monitor(s) Displays
2X Acer 22" LCD
Screen Resolution
1680X1050
Hard Drives
2x Hitachi 7200RPM SATA 500GB
1x Seagate Barracuda 7200RPM 500GB
PSU
Thermaltake 675watt 80 Bronze
Case
Generic
Cooling
Thermaltake SpinQ 360
Mouse
Logitech G9 Laser
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