Power supplies for desktop computers are a standard design, but vary in output power. If you have more powered components - hard drives, optical drives, graphics cards etc. in your machine you'll need a larger power supply. This is the main consideration when upgrading your computer. Power supplies ...
3
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3answers
51 views
What is the correct way to check the efficiency of an UPS?
I have my UPS made by Israeli company - Advice. I read somewhere that every few months, UPS should be checked for operability by disconnecting it from the mains plugging mid and high powered devices ...
1
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3answers
74 views
420W PSU with a 500W Rated Video card
I rencently bought an ATI Radeon 6850 that is rated for 500W PSU. I know I should have at least a 500W PSU, however, I am trying to recycle some parts from an old computer and have a 420W power supply ...
0
votes
2answers
28 views
Power requirements for this build enough? [closed]
I am currently in the process of building a series of desktop base units to act as a cluster (running Linux). It will be running 24/7 mostly so i need something that lasts.
Here are the specs:
CPU: ...
1
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2answers
47 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 ...
0
votes
1answer
26 views
Gateway Power Supply - Cannot Desolder Broken Off Pins
I looked at a lot of forums and it appears that this is probably the best one to which I should submit my question. The long story short is that I have a Gateway power supply that has been broken off ...
2
votes
2answers
118 views
Two PSU in one PC
I'm not sure if this is right question for this site, so I apologize if I shouldn't have asked this here.
I have two 400W (labels say that they are 400W, but I think they are much less because they ...
0
votes
1answer
60 views
What is polarity for an unmarked USB hub?
On my USB hub where the power supply plugs in, the polarity is unmarked (I got it used, from my brother's friend). I need to know what the polarity should be.
I don't think it makes a difference ...
0
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1answer
42 views
intermittent power up failure after shut down
My desktop with ASUS P5L-MX motherboard does not immediately want to boot up whenever it is completely shut down. When the switch is pressed there are no visible lights, fan motion or anything. It ...
0
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1answer
61 views
no POST while booting. monitor not displaying anything
The monitor not displaying anything.
I don't hear the POST signal as well. ( the beep while booting )
Things that I have tried.
Connected MONITOR to laptop ( which I am using currently ), ...
-1
votes
2answers
114 views
Computer doesn't start, green light indicating whether the PC is on doesn't show anything
I have a problem with my PC. These are the symptoms:
CPU cooler makes 2x louder sounds
Green light indicating whether the PC is on doesn't show anything. The PC is on.
Red light (besides green one) ...
-2
votes
2answers
68 views
Out of power connectors, need to install 3 more drives
I just built a new PC. My motherboard (Gigabyte Z77) has 8 SATA connectors.
The problem is, I have run out of power supply connectors! I need to install 3 more drives.
How can I increase the number ...
2
votes
2answers
91 views
Boot up troubles, power related - system always stable once booted
I've got a system that's been causing me a lot of trouble over the last few months. Below is a somewhat lengthy saga of my experience with it but it should hopefully provide some thorough problem ...
0
votes
1answer
56 views
PC Crush-Reboot After Exactly One Hour
My PC has been powering down and rebooting after exactly one hour every time I turn the thing on. It's been happening for about 3 weeks now. The spec of my self-built machine (rough in places sorry) ...
3
votes
3answers
135 views
Alternative power source for graphics card
I recently purchased an XFX Radeon HD 6870 graphics card for my Dell Server Workstation, but when I brought it home and unpackaged it to put it into my computer, I noticed it required 2 6-pin ...
0
votes
0answers
59 views
Cannot boot anymore, power supply broken?
My desktop computer is not able to boot anymore. Currently I have breadboarded my computer taking everything out of the case so the motherboard is only connected with:
500W power supply, connected ...
0
votes
0answers
122 views
required powersupply for AMD Radeon HD 7950?
From AMD site the required powersupply for 7950 is 500W.
http://www.amd.com/us/products/desktop/graphics/7000/7950/Pages/radeon-7950.aspx#2
whereas when using custom configurator in ibuypower.com
...
0
votes
1answer
54 views
Can 20pin PSU cause usb stick corruption
Getting constant usb stick corruption issues when using an old 200W PSU with 20pins with both NTFS and FAT32. Can the old PSU cause the corruption? PC is running fine otherwise (no BSOD, freezes).
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0answers
15 views
wacom intuos 4 is generating autoclick when the pc is on the inverter power supply
i have a wacom intuos 4 which is generating the double click when the power fail and pc goes on inverter supply or there is fluctuation in the power which is common at my place is there a way around ...
1
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2answers
70 views
Re-cased my computer now the power plug keeps shorting
I've just re-cased my computer. I got the new case free and thought I'd be able to swap everything over myself but apparently I've done something wrong. I'm OK with components generally but wasn't ...
3
votes
2answers
132 views
Will a 90 watt (instead of 60 watt) power adapter harm my Inspiron B120?
Will a 90 watt power adapter (instead of the 60 watt adapter it came with) harm my Inspiron B120? It's made by Dell, and it fits…
0
votes
2answers
265 views
Does a Samsung G3 Station external hard drive stop working when power supply is too high?
I have a Samsung G3 Station 2TB external hard drive (link to PDF specs here). It was working perfectly when I accidentally plugged it in my notebook's power source. Now, it doesn't work even with the ...
0
votes
2answers
146 views
How much money can I save from installing a 80 plus bronze or gold PSU? [closed]
Currently I've only a 300 watt PSU and my pc is working like a charm but with all the components it should use the psu to the max. Recently I've read about 80 plus certificate and I'm wondering if ...
0
votes
0answers
59 views
Windows 7 remains powered on when restarting
I'm running windows 7 x64 on an MSI P67A-GD53 motherboard, in an Antec P280 Super Midi Towercase with a Corsair 650w PSU.
I've just installed a second instance of windows 7 x64 on a separate disk ...
0
votes
1answer
75 views
Connecting PSW to motherboard ON/OFF pins
I want to know is it possible to connect this PSW 2 pin connector to my motherboard:
my motherboard ( if yes please tell me where to plug it in )
0
votes
1answer
31 views
Antistatic mat alternative
I'm going to replace the psu and graphics card for a computer, and I don't particularly want an antistatic wristband (I'll just slap a radiator), but when I'm opening it, what shall I put it on that ...
9
votes
3answers
422 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
27 views
how did my laptop lose daylight savings time on power loss?
it was an old laptop that may or may not have dead CMOS battery (at least it had time reset to 0 when I dusted it off). So, it was plugged into power for awhile without the main battery and the clock ...
1
vote
1answer
23 views
How do I identify a compatible power adapter for my hard drive?
I just got this hard drive back but the cables have been lost. Getting the right USB cable is easy enough, but how can I be sure that I'm getting a power adapter that works with it? It says 12V/2A ...
-1
votes
1answer
129 views
Does intensively running a gaming-laptop increase electrical costs significantly? [closed]
Our electric bill has been high lately, and I was wondering if it is related to my new gaming laptop I bought. I have an MSI GT780DX. It has a huge power brick AC charging adapter, and I leave it ...
0
votes
3answers
59 views
Computer takes a minute to power on
For about a week, my desktop has been acting weirdly.
Sometimes, after pressing the power button, it turns on instantly.
Sometimes it does not react at all. No sounds, no lights, nothing beyond the ...
1
vote
1answer
89 views
PC won't power on due to graphics card loop
One day when I decided to turn on my PC, something strange happened. All the fans were running, but I had a blank screen. I then heard my graphics card's (ATi 5770) fan go in to a loop, turning on for ...
1
vote
1answer
66 views
Is it possible to have an ATX and a mini ITX boards running under one (ATX) PSU?
Specifically - are there any ATX PSU's with double 24 pins, or some kind of adapters that would make it possible?
1
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3answers
214 views
Bad Graphics card or New Power supply needed?
I've just bought a Radeon HD6870 but when I install it my machine doesn't even POST. I had to get a PCI-E power connector adaptor (2xHDD sockets to PCI-E 6-pin plug) as my 500W power supply only had ...
0
votes
2answers
129 views
Using my laptop as a USB power supply
I've been using my laptop as a USB charger for my media player (usually an iPod Touch). Each night, I play an audio-book from my media player (usually iPod Touch), which needs to be charging (via ...
0
votes
0answers
25 views
power supply power_good(power_ok) failure [closed]
i have a power supply that can't power on a 24pin motherboard, but it can power up 20pins motherboard,
Even I used a connector using 20pin to 24pin, it won't power up a 24pin motherboard
They said ...
0
votes
1answer
59 views
Computer inoperational but motherboard LED on
My friend's computer switched off suddenly and since then nothing happens when you press the power button - no spinup, fans or anything. The only sign of life is that the motherboard LED is on. Is ...
1
vote
2answers
167 views
Internal 5.25" DC UPS
I think we need the following internal UPS product:
Can be fit to 5.25 drive bay (like optical drive).
You connect PSU to this UPS with standard 24 PIN PC Main connector + other connectors for ...
1
vote
1answer
89 views
New build not powering up
So, I ordered a bunch of parts and put them together. They should all be compatible.
My power supply unit is not faulty. It works fine when I plug it into my other system. It does not work in my new ...
1
vote
1answer
243 views
Is a 6 pin PCI-X power connector safe to use on a card that only requires 5 pins?
I know that on a 6 pin PCI-X power connector the spec says pin 2 can be disconnected. It is another 12v pin like pins 1 & 3. If my graphics card only requires a 5 pin connector, is it still safe ...
0
votes
2answers
333 views
Computer starts without pressing the power button
When I open the switch of the power supply, the Computer automatically starts up and then in three seconds automatically shuts down.
I have tried shutting down windows properly but this unusual ...
0
votes
0answers
20 views
HP Desktop LE251pa not powering up
My HP Desktop LE251pa is not powering up, the fan of the PSU turns on, then off then on and so on. From there when I pull the power cord from the PSU the computer makes 3 short beeps.
Im wondering if ...
0
votes
2answers
300 views
How can I wire my case fans to be powered by my PSU and not motherboard?
My case fans are plugged into my motherboard and I have no more slots for fans. I read from a source on yahoo answers I should wire all my case fans to a molex 4 pin adapter--and plug that directly ...
1
vote
4answers
329 views
What Can I Do With US Laptop's Power Plug's Ground Pin?
DELL Latitude E6420 that i have got in USA has this plug:
While i have these 2 UK adapters:
Usually neutral and live fit, but ground pin creates here a problem as the plug won't fit into israeli ...
0
votes
2answers
1k views
Can I safely use a PSU with an ATX 12v 4-pin for a board that has a EPS 12v 8-pin?
There's many similar questions to this, and because the answers vary depending on the setup, I want to ask for my friend's specific setup.
He recently upgraded to a Core i5 gaming build, so he has ...
0
votes
1answer
64 views
Is My PSU compatible with this UPS
I have this PSU and this UPS, however due to the PSU being/having an active PFC (power factor correction) it is incompatible with my UPS (at least according to APC tech support, for reference see my ...
1
vote
2answers
84 views
Power supply does not silent after few seconds
I have a desktop computer that I intend to use as a Linux server. I assembled all components and the computer properly boots in Ubuntu, and works fine, however, the power supply fan does not turn down ...
0
votes
0answers
63 views
Computer Stalls 5 minutes after cold boot
My computer stalls about 5 minutes after a cold boot.
I let it warm up, restart it and then it'll work fine until next cold boot.
Issue happens in XP, Win Vista and Win 7 (even happened during an os ...
3
votes
3answers
252 views
Computer hangs due to underpowered UPS?
I just bought a new UPS. Now since I started using it I experienced at least 3 random freeze in Windows 7 and it happens during the first 10 minutes of start-up. Note when I say freeze, I mean I ...
0
votes
2answers
135 views
Can I replace a power adapter of 1.5A with one of 1A?
I have a Western Digital external hard drive that uses a power adapter to 12v and 1.5A, and it stopped working. I tried it with a tester and doesn't output any current at all.
Can I replace it with ...
1
vote
4answers
449 views
Does a UPS charge it's battery even if my computer is turned on?
I bought a new UPS and the manual says something like "the UPS must charge for 24 hours before it can work properly..."
My question is, does it charge even if my computer is turned-on or should I ...
