Thread: Low power , What is the best alternitave ???

I went ot the shop and i bought 4 kinds of wire and test them all and .......... every think still the same >>> the dark lines still there .


I noticed another thing , Once the processor works more the dark lines become more and darker on the screen . And if the screen work only for 1% to 5% the screen become clean .


So i think that there is no enough power..?! . What do you think ?? .

I agree, there definitely isn't enough power, but the question is what isn't getting the power it needs and what might be sucking it away.

What processor are you using? I just read that it can only use processors which use less than 65 watts which would explain why the CPU usage affected things.

Then again you said that your system was fine when powered by an ATX PSU.

I just had a look at the M2-ATX specs and I see that the 12 volt rail is capable of supplying 8 amps. I should have looked there sooner.

A hard drive pulls around 1.5 amps so now we are down to 6.5 amps remaining.

A 65 watt processor pulls 5.4 amps so now we are down to 1.1 amps.

That system has a relatively powerful graphics card which I'm willing to say eats the remainder of those amps.

You need to either cut down on power or use a bigger power supply. You can try underclocking your CPU a bit and I bet that would fix things. That is kind of just a band-aid though.

M4-ATX will definitely give you enough power. It supplies up around 15 amps on the 12 volt rail. I'm using one right now on my test bench and it is supplying power very nicely to pretty much the same system as you with the addition of a whole bunch of powerful lights.

Originally Posted by PaulF

What processor are you using? I just read that it can only use processors which use less than 65 watts which would explain why the CPU usage affected things.

I'm using AMD 4850e which is supposed to be 45W . I tried many time to underclock the processor but i had some problems with booting when i did that . So i think the best option is to go with M4 .



Thank you very much for your responses .

i just noticed this thread... im using the M2 ATX power supply and it runs my pc (see Seville thread in my sig) and it ALSO can run a 15" lcd monitor, microsoft streets n trips gps and a plethora of other devices without problem, tho my processor is the amd 3500 or 3800 i forget offhand but the fact that i can run a fully equiped pc AND the 15" monitor off the M2 ATX, suggests to me that there is something else going on with your setup since you are running the monitors power from an external source (cig lighter)

i tossed that cig lighter power adapter and spliced in a connector (4 pin molex) so that i could use the M2 ATX to power it (lilput 7" widescreen touchscreen) and it runs without problem whatso ever

when u say when the processor is working the dark lines get darker, this is also sometimes the case when you overclock graphics and the cards memory or chip gets a lil too warm--- what kind of heatsinks do you have on the chipsets? and what kind of cooling do you have for the cpu??

Originally Posted by MindDrive

when u say when the processor is working the dark lines get darker, this is also sometimes the case when you overclock graphics and the cards memory or chip gets a lil too warm--- what kind of heatsinks do you have on the chipsets? and what kind of cooling do you have for the cpu??

The graphic card is working on the default setting . I don't know if i can underclock it or not !!! , AND I'm using the heatsink that came with the processor , the same thing goes with the chips fan , it is the original one that came with the motherboard .

I think it is the NVIDIA®GF8200 what makes the M2 unable to power the system because it seems that it draws alot of power alone .

**(edit)**
when you install nvidias performance group drivers (scroll to the bottom for the dl link) even on an HP itx board, it allows you to change the clock frequencies, but even then, it might not necessarily alter how much power it takes to make the chip "function" at any given time
**(end edit)**

oh man ~_~ this new setup im using has the 8100 (in vista it reports as the 9100) but my first setup only had the 6150LE so i think im going to be in the same boat as you :S -- if you want, i have all the parts laid out in my garage with a deep cycle marine battery i was using to power everything from pc to audio equip while it was all installed, ill see if im subjected to the same problems you are having cause the first setup's power supply that came with the rig was only 108W ps, where this new setup's ps is 260W

on the other hand, a friend of mine brought me his disfunctional one to see if i could repair it (power on, no post, black screen) so since his was all amd as well, i swapped EVERYTHING cept the motherboard and still couldnt get it to post... i then took all his hardware and put it on my first carpc and it posted--- when i took my ac~dc power supply and put it on his mobo same effect- power on-no post.... so i dont know if the difference in power requirements is for the new hardware or the amount of periferals that are able to attach to the original system (my original system only had 1 pci slot, where as these new boards have 2~3 pci-E and mini-pci-E ports)

i have today/tonight off, so hopefully i can squash all my "do it or pay" tasks ive got to do today and start up on my carpc projects... first off will be to test the M2 ATX on this new configuration.... if i find the same results as you then were both in the market for a new power supply ~_~, if not then it may be something more specific to your problems--

ill try and be as prompt as possible,,, im glad i found this thread of yours!!!