Tagged Questions
1
vote
2answers
206 views
Power supply bad with good voltage?
I am trying to drive out the reason I am having some hard drive "hard resetting link" error problems on a Linux Debian box.
I am trying to eliminate the power supply as a problem in trouble shooting, ...
1
vote
1answer
67 views
Insufficient power from an adapter
Would not having enough power (or voltage or amperage) from an adapter make a laptop no longer charge/boot up (if the battery is out of power)? What about causing shorts? And would using a different ...
0
votes
1answer
36 views
Manually starting a PSU lowers the output Voltage
I have a PSU. When I start it using a motherboard, I get a little over 5 and 12 volts on the respective lines. But when I manually start it (by connecting PS_ON to ground), I get only 4.2 Volts on the ...
2
votes
2answers
185 views
Weird voltage issues - intermittent low 5V line
My computer has developed a strange ailment: when I turn it on, the 5V power line from the PSU is very low, hovering at around 4.2V. This is intermittent however, sometimes it jumps back up to 4.98V.
...
1
vote
1answer
175 views
What are the costs and benefits of using 12V-only motherboards? [closed]
According to my research, it sounds as though power efficiency concerns in recent years have driven some hardware manufacturers to create different power supplies and motherboards which are ...
1
vote
2answers
254 views
HDD is very slow after voltage drop
The HDD is Seagate Barracuda 7200.7 160 Gbytes
Model ST3160023A. Of course it is not SATA.
I once connected it to the USB via special adapter IDE-to-USB, and a separate power unit. The voltage drop ...
9
votes
3answers
841 views
Can I have too high a PSU power rating?
I have just ordered a 650 W PSU for my computer which previously had a 300 W, in order to install a more powerful graphics card. However, I didn't check whether anything would blow up ...
0
votes
1answer
348 views
Have a 40W power supply - will it power a laptop that needs 65W? (18.5v 3.5A (=65W))
Have a 40W power supply - will it power a laptop that needs 65W?
I know that the basic calculation, voltage x amps = required wattage, so 18.5v x 3.5A =65W
I realise that it should only draw the ...
3
votes
1answer
556 views
PSU voltage with multimeter
My PSU started making some noises even when the fans were stopped. I also had USB problems (two USB devices burned) so I checked the PSU voltages with a multimeter.
I removed the PSU and connected it ...
1
vote
2answers
367 views
My dlink power supply broke, I found a similar one on old boxes. Is it going to damage my router if used (specs and pic inside)?
I have an old dlink wi-fi router to connect old 802.11g devices at home. It's power supply just fried after a storm.
Buying a new power supply is almost the same price as a used router like mine, and ...
1
vote
3answers
1k views
Can I run a router with a lower voltage power adapter?
The power adapter for my Linksys WRT54GL v1.1 router died - its output was 10V, 1000mA.
I've tried using a replacement adapter (7.5V, 1000mA) and so far it works. Is this situation stable, or should ...
1
vote
2answers
965 views
Same voltage, different amperage for two power supplies
I've just plugged an 18.5V 6.4A HP power supply into an HP laptop; I normally use an 18.5V 3.5A power supply. Since the connector fit, I figured I'd give it a go... so far no funny smells or fires.
...
0
votes
1answer
758 views
Very low power supply voltages
My computer is fairly modest in terms of power consumption:
4 7200 RPM SATA-II hard drives
An IDE DVD-writer
Four 80mm case fans
Two 95mm heatsink fans
Intel Core i7-920 2.66 GHz (OC to 3.80GHz)
...
2
votes
1answer
4k views
PC power supply & normal range for voltages reported in BIOS hardware monitor?
I'm trying to diagnose whether my computer has an ample power supply. Sometimes when I play a video-intensive game, both monitors lose the video signal, even though the computer remains on and sound ...
5
votes
2answers
564 views
What are good values for PSU voltages?
I have an odd computer I'm trying to fix that will crash only during the setup of an OS(crashes on every OS I've tried so far) It's not overheating and it is stripped down as much as possible and I've ...
