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This project has evolved some , the basic rundown is I'm modding two Omnibots , one a regular the other a larger 2000 model. I will have two ezb kits , rad base idea was thrown out because of so much noise but could go back on the table if the omnibot drivetrain is too weak to pull it.
By jstarne1
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Ouch josh, that's rough.
Ok. Due to.video card issues , I took my video card back to best.buy.and.moved up to nvidia GTX550TI 1gb DDR5 PCI graphics card, spent a little.extra , agian take in mind this will be deactivated whenever my bot is running around because I'm sure it draws as much or more juice than.my.CPU lol. It supports two monitors , dvi, VGA , hdmi and tv out so I'm covered on all accounts. I will.usually use hdmi...
http://www.bestbuy.com/site/NVIDIA+-+GeForce+GTX+550+Ti+1GB+GDDR5+PCI+Express+2.0+Graphics+Card/2375089.p?id=1218323853938&skuId=2375089&st=nvidia%20video%20cardnvidia&cp=1&lp=3
josh
i was looking to get a video card for my robot computer and found out i needed 250 watt power supply,it was little like that one,and didnt get it because there is no 12 volt dc-dc converter to handle it so before you put out money for that board i would check what power supply is needed and see if your dc-dc converter with handle it,second you will most likely need a much bigger battery to handle the load of it
wow found out the power supply needed System Requirements Minimum of a 400 Watt power supply
here is the link to it
psu recommended
PSU recommendations are very generic , at max draw this card is 138 watts but that's overclocking , toms hardware rated it at 116 with stock settings. I ofcourse will Disable!! This card when the bot is on battery , it will be a power saving profile in Windows. But when I'm gaming I would like to turn it on. You are very right I will need a 250gig watt power supply , I'm looking at a M4-atx 250 watt continous , 300 watt max PSU
http://www.ebay.com/itm/M4-ATX-250W-6V-30V-Wide-Input-Intelligent-DC-DC-Power-Board-/310394249495?pt=PCA_UPS&hash=item4844f06117
Taking in mind my.motherboard only draws about 35 watts and this card 138 watts , think this will do the job ? ?
then add hard drive,and cd rom ,anything hook up to usb problem you will see is 35 watts is normal power no running programs running programs takes up much more,then video alot more ,thats why they have it at 400 watts when then meen 400 watts its total power of cpu and running programs, hard drive cd rom even if you use usb still draws some power, think at using that power supply you will 10 amps battery for may be 3 hours run time ,i have a 120 watts and found out total draw was 8 amps at 4 hours with any video video uses the most power of the power supply and cpu,for that board you will need a very fast computer since its mostly a gamming video card just some ideas to help you out,i would first try it with a ac power supply first and see if it works most cheap old computers use a 250 watts
good idea ask a tech support guy at best buy ,see what it says wow that board looks like it draws near 25 amps SINCE THERE IS A FUSE AT 25 AMPS it mostly about right for almost 10 watts power you have about 1 amp draw i think is .85 amps per 10 watts if i remember right
here is another idea to help my good friend out,use a 12 volt ac power supply with a relay switch,and use the wall socket when using the video card and dont use any video when running the robot,the card shold have idle current
@Josh,
I thought your MOBO had onboard video (VGA out)..that would be better than adding a card that is going to suck your power down, especially any of the NVIDA cards.....
Sorry to hear about your bot too, glad to hear you got another one lined up.
Another thing to consider with your video...why go with a fancy PCI video card if you are running a small composite video screen... (unless you got something different from the monitor you posted a while back). You will also need VGA/DVI to composite video conversion which will suck down more power as well.
v/r
Kevin
@kkeast thats what i try to tell him that ,trying to save him money and trouble i think he said wants as his main computer to hook up to a flat screen or better monitor only idea that would work is use a relay to switch power from 12 volts to 120 ac volts and not run the video card when using it as a robot