to small PSU and the pc will not boot, get it wrong in a big way and the PSU will blow.
If it is borderline you will probably find it reboots when under high load.
I have an M2-ATX and have had it for over a year. I recently updated my system.
AMD FX-62 Dual Core 2.8 GHZ
1 Sata 2.5" 7200 RPM HDD
1 OCZ SSD 64MB (sata)
Lilliput 619 7" LCD
Between GPS etc.. I have about 8 USB peripherals.
After the install I notcied the age old lines on my LCD screen. Before the new install the screen was smooth with no problems. It is hooked into the 12v rail of the PSU. Aside from the screen I have noticed my GPS won't get a lock (Brand new BU-353), my steering wheel controls which go into a IR reciver are slow and some of the buttons won't register, and my PCI SB Live with KX drivers has been finikey. So there a re mulitple little issues going on here. Today I installed a 1 Farad Rockford Fosgate capacitor for the PC. I have a seperate 4GA line from the battery for the sound system so that is independant of the PC. I have noticed no change with adding the capacitor.
In the monitor for my voltages the 5V rail fluctuates between 5.00 and 5.04.
The 12V rail is at 12.0 and may go to 12.3
I bought an M4 ATX which was a brick out of the box so I am sending that back.
My question here is can I isolate this to power issue? I want to make sure before I dump money I don't have into an Opus 320W or something. Is what I described above characteristic of low power?
while the m2 puts out a maximum of 160 watts, the processor consumes 125 watts at full load. Adding all of those components to the PSU, is a recipe for disaster. Something will eventually blow, or go up in smoke.
Tax the system long enough, the capacitor may help you get there sooner rather than later.
you should definitely get a low tdp chip in there to replace that desktop hog. i too could use a dual-core play-any-game chip but i run a celeron 35w processor and it suits me more then fine. a hell of a lot better then some itx setup thats for sure
I hope this question was a joke
Progress,.... that is what I keep forgetting ;)
parts___[++++++----] around 60%
desktop dual core processing power is just not needed in a car... Get a smaller more efficient mini-itx board, it'll be better for your cars electrics, the battery and alternator, and will also use less fuel. Don't forget in car, electricity is made from burning fuel! More leccy means more $£$, and all it will do is make more heat and noise. Oh and don't forget the space used up too.
If it is running but the PSU is 'undersized,' it could shorten the life of the PSU. It all depends on exactly how you are overdrawing the supply. You may be using more power on one rail than the PSU is rated for even though the total wattage of the setup is below the max output of the PSU. Have you used one of the power calculators to figure the draw?
In the short run, I'd at least take the screen off of the PSU and connect it to the car itself.