Computer not turning on

debis

debis

Broken In
Hi. Since the past couple of days I've been unable to turn on my computer. I've checked with and without UPS, but it just doesn't turn on and the mouse LED keeps blinking.

Actually, this issue started about a month ago when the PC wouldn't turn on at random times. But now it's been a whole 2 days. I'm guessing it's a PSU issue? My PC is nearly a decade old and houses a Phenom II X4 955 and a R7 260X.

If it's the PSU, should I go for a repair? If not, please suggest a new one keeping in mind that I'll be upgrading my PC in a year or so. So it should be good enough to power a mid range graphics card, say, the GTX 1660. And I'll be buying online because I live in a small town and they only have el cheapo PSU's in the local shops. Also, my cabinet is a CM Elite 310, so it should preferably fit in my cabinet coz I don't want to buy a new one at this time.

Edit: My current PSU is a Corsair CX400.

Please help me out. It's urgent. Thank you.
 
Last edited:
nac

nac

Aspiring Novelist
No CPU fan spinning, no PSU fan spinning, any LEDs are lit on motherboard?
If only mouse is showing any life, may be it's PSU. But before concluding that, check these

Turn off power, press power button on your cabinet to discharge electricity.
Unplug and replug all the cables, then turn on and see if works.
If that doesn't work. Open the case and clean things if it's dusty. Remove memory and gpu. Clean them, clean their slots, reseat them. Unplug and replug cables. See if it works.
If that doesn't work. Do a bench test. If you don't know how to do it, check out videos in youtube.
If still doesn't work, borrow PSU from someone and check.
 
OP
debis

debis

Broken In
nac said:
No CPU fan spinning, no PSU fan spinning, any LEDs are lit on motherboard?
If only mouse is showing any life, may be it's PSU. But before concluding that, check these

Turn off power, press power button on your cabinet to discharge electricity.
Unplug and replug all the cables, then turn on and see if works.
If that doesn't work. Open the case and clean things if it's dusty. Remove memory and gpu. Clean them, clean their slots, reseat them. Unplug and replug cables. See if it works.
If that doesn't work. Do a bench test. If you don't know how to do it, check out videos in youtube.
If still doesn't work, borrow PSU from someone and check.
Click to expand...
Yeah, nothing inside the case is spinning and no power or HDD LED.

Anyway, I opened the case, removed memory and GPU, cleaned the slots even though there wasn't much to clean, reseat them, unplugged the 24 pin power cable and replugged. Issue still there. Another thing I forgot to mention is that I've been getting some random "CMOS checksum error" messages during boot up. Could the CMOS battery be the culprit?
 
topgear

topgear

Super Moderator
Staff member
Change the CMOS battery - if the issue still there then most probably the motherboard ( it's bios chip ) is at fault here. May be re-flashing the bios can bring it to life but as the system is too old there's very little hope.
 
Flash

Flash

Lost in speed
Tried starting the system with minimum components? say single RAM without GPU and the HDD with OS.
 
OP
debis

debis

Broken In
Okay, first I'll try changing the battery to see if it works. If it doesn't, then I'll try isolating components.
 
Randy_Marsh

Randy_Marsh

Youngling
Dead CMOS battery can't cause such problems. The system should start up just fine (with incorrect date-time and maybe default BIOS settings) even if the battery is dead.
It looks like your PSU is dead.
 
OP
debis

debis

Broken In
Tried changing the battery. Didn't boot. I think it's the PSU. Now the question is should I go for a PSU keeping my future build in mind or just get something good enough to run this rig?
 
Randy_Marsh

Randy_Marsh

Youngling
debis said:
Tried changing the battery. Didn't boot. I think it's the PSU. Now the question is should I go for a PSU keeping my future build in mind or just get something good enough to run this rig?
Click to expand...

Even if you think for future build, a good PSU with 500-550w should do just fine. Corsair CX550 is a nice option but wait for others to recommend more.
I also think that your current PSU is dead, but it would be better to borrow a working PSU from someone and test your system, just to be 100% sure that other components are absolutely working fine.
 
OP
debis

debis

Broken In
Randy_Marsh said:
Even if you think for future build, a good PSU with 500-550w should do just fine. Corsair CX550 is a nice option but wait for others to recommend more.
I also think that your current PSU is dead, but it would be better to borrow a working PSU from someone and test your system, just to be 100% sure that other components are absolutely working fine.
Click to expand...
The problem is no one I know has A PSU good enough to run my system and its next to impossible to find branded PSU's in the local shops here. So I don't have a choice in that matter. I'll have to take a chance. And I think the CX550 is a good option. It's also in my budget (~5k).
 
W

whitestar_999

Super Moderator
Staff member
You can order from them(mdcomputers.in vedantcomputers.com),as it is in same state so may be delivery will be faster/you can directly call also for any queries. Other sites are primeabgb(use https as http version may redirect to their sister site selling pre-build pc) & the itdepot.
 
OP
debis

debis

Broken In
I have never purchased anything but a thermal paste from MD computers. Are they reliable? Do they have replacement policy like Amazon?
 
W

whitestar_999

Super Moderator
Staff member
debis said:
I have never purchased anything but a thermal paste from MD computers. Are they reliable? Do they have replacement policy like Amazon?
Click to expand...
They are considered quite reliable(incl vedantcomputers) & since they are in your home state so even better communication over phone(same language,culture etc).
Mdcomputers.in: Cancellation & Refund
www.vedantcomputers.com
 
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