I find that some power supplies are missing -5V yet the computer runs fine. Is -5V unecessary?
1540281
I looked around some online and it seems that -5 volts was used in the ISA bus. Being that buss is no longer used it would seem that voltage is no longer needed. Doesn't hurt if it's present or not.
1540282
I don't believe the -5V is necessary. It does not light up when I test a power supply See this article: http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm Also, check the label on your PS to see if -5V is listed.
1540283
On the original IBM PC, a -5 V rail was provided for peripherals on the ISA bus, but was not used by the motherboard.With later versions of the ATX PSU standard there is no -5V rail. The latest specification is v2.93So, simple answer, forget about it. :)
1379684
This one should do the trick. It's 150w and 19.5v. It's great for my power hungry alienware. Good luck!
1482114
My PC power is 350W. Not sure if this come originally from Lenovo, because I bought this PC from a middle man.
133692
The cable you see in the picture. Your power supply (inside the computer) should have some extra plugs.
2064308
It doesn't use much, I think I noticed my power supply using about 150mA/.150A.
444282
I really don't know. My problem turned out to be the power supply, not the graphics card.
1985596
I used 5V with no problem. Couldn;t find the specification but everything above 2.5 i think is considered a high
939167
I added a picture of the power supply showing the voltage here: http://www.amazon.com/gp/customer-media/product-gallery/B005YXXTAQ/ref=cm_ciu_pdp_images_dav
105386
Robert, That's the computer I have and this is the power supply I used. It plugged right in and is still in use. No adapters were necessary for my system.
2263703
Do you have an adequate power supply for the device? If so then it may be defective.
1088257
Unknown. Suggest you check your power supply specifications for each type computer. Check with Best Buy Geeks.
634032
I agree with GEEZERBUTLER.. who could recommend a powerful + compatible + cheap power supply for this computer?/thanks
1417264
It worked well in my Tri-Star running Windows XP. The computer was vintage 2006. I don't know if it was 5v or not.
1250433
it's always dicey saying if it will work for you, so i'll say this. My motherboard is an MSI Z77A-G41, I honestly cannot find the voltage specs, but I believe it will just run it at the 1.5v. If I run CPU-Z (which tells you what everything is, each stick of RAM shows it's voltage in 4 banks, mine reads.. 1.50v 1.50v 1.50v 1.650v Honestly, I don't know what to make of it.. but it appears the 1.5v is not a problem for me.
506712
I don't quite know... You should probably ask the cooler master people via email. Personally, running this without the power adapter doesn't work for me.... But I haven't even tried. Though this is a good question I'm interested in finding out about... If I find an answer, I will post it here.
2078456
The best way to know is to check the power adapter, look for the output voltage printed on the adapter brick. The V5 series is a compact laptop. Like I said look for the output on Volts, and on the laptop should say what the input voltage is. If it's 12, 16 or 19 volts, you should be all set to go. Make sure the correct voltage is selected, too high and it can possibly damage the computer.
668581
Is the power cord plugged in? Is the laptop getting power? Is the power supply putting out the right voltage?