my pc would suddenly not POST

By ultimate99
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Grand Master

ultimate99

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All of the sudden, my computer stopped POSTing. not on the display, fans are all spinning. I use displayport for connection, tried dvi-d no difference. I reseated the gpu and ram, nothing. I tried connecting the keyboard to different usb ports, it won't light on. Any ideas?

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Grand Master

ultimate99

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Posted (edited)

Can't, it's the only pc I have and it's relatively new. I just built it a few months back.

 

UPDATE: should psu fan be spinning all the time or only at high temps? because it's not spinning... It's an EVGA SuperNova 550 GS.

Edited by ultimate99
Grand Master

Hum

Posted
Posted (edited)

A few times this happened to me, I replace the CMOS battery right away.

 

On my systems, it would not POST without a good battery. [typically a 2032]

 

Forget about how 'new' the PC is -- that battery could have been laying around a long time before you ever got the motherboard.

 

Did you check the power switch on the PSU ?

 

Check all the power connections from the PSU to the motherboard and drives.

Grand Master

exotoxic

Posted
Posted (edited)
2 hours ago, ultimate99 said:

UPDATE: should psu fan be spinning all the time or only at high temps? because it's not spinning... It's an EVGA SuperNova 550 GS.

 

Read the specs, that PSU has a hybrid fan so it is normal that it is not spinning.

 

EDIT: unless you flipped the switch to "always on"

Grand Master

Hum

Posted
Posted (edited)
12 hours ago, Hum said:

A few times this happened to me, I replace the CMOS battery right away.

 

On my systems, it would not POST without a good battery. [typically a 2032]

11 hours ago, ultimate99 said:

It's booted up.....I had to reset CMOS with a screw driver. Phew!

Thanks guys.

Amazing Holmes :shifty:

 

Grand Master

Obi-Wan Kenobi

Posted
Posted

man, I'm glad you got it going! I know I'm late to the thread, but I can't tell you how many times I've had to do the same thing! Good job, buddy! :)

Mentor

fintechfooty

Posted
Posted
31 minutes ago, T3X4S said:

Thou shalt not overclock !

 

This happened to me when I overclocked! What makes it do this? For my old pc I could overclock it from 3.0 to 3.7GHZ and also do the memory and gpu. With the new one I built I can't even overclock by .1GHZ without this happening!

Grand Master

T3X4S

Posted
Posted
5 minutes ago, suprNOVA said:

This happened to me when I overclocked! What makes it do this? For my old pc I could overclock it from 3.0 to 3.7GHZ and also do the memory and gpu. With the new one I built I can't even overclock by .1GHZ without this happening!

Well - it depends on quite a few factors, but the short answer is - incorrect settings.

Some CPUs and chipsets dont like OC-ing.

Without knowing the details of what you attempted, one can only guess as to the reasons.
If your computer doesnt like the settings in the BIOS - it will just sit there until you change it to something that it can handle.

But, if you listed your hardware specs, and what you tried - I know there are some in here that could quickly point out what the problem was.

I dont OC.  IMHO it is just for testing, or messing around (bragging rights) - it is not supposed to be for squeezing out a few more fps in a game.

If you have to OC to get 3-4 more fps - that means its time to upgrade - again, IMHO.

My desktop is watercooled, has all the good name brands - but I do that for reliability - if I need more performance - I'll upgrade, not OC.  But thats just me.

If you post what you did in the OC subforum - there are some guys in here that can spot the problem in a matter of seconds.

The biggest problem many have is a crappy PSU.
 

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fintechfooty

Posted
Posted
9 minutes ago, T3X4S said:

Well - it depends on quite a few factors, but the short answer is - incorrect settings.

Some CPUs and chipsets dont like OC-ing.

Without knowing the details of what you attempted, one can only guess as to the reasons.
If your computer doesnt like the settings in the BIOS - it will just sit there until you change it to something that it can handle.

But, if you listed your hardware specs, and what you tried - I know there are some in here that could quickly point out what the problem was.

I dont OC.  IMHO it is just for testing, or messing around (bragging rights) - it is not supposed to be for squeezing out a few more fps in a game.

If you have to OC to get 3-4 more fps - that means its time to upgrade - again, IMHO.

My desktop is watercooled, has all the good name brands - but I do that for reliability - if I need more performance - I'll upgrade, not OC.  But thats just me.

If you post what you did in the OC subforum - there are some guys in here that can spot the problem in a matter of seconds.

The biggest problem many have is a crappy PSU.
 

Thank you! :) I definitely will post my specs to the OC section! I never really gave it a thought but my PSU is cringeworthy (something that I spent a good amount on with the previous build).

Grand Master

T3X4S

Posted
Posted
3 hours ago, suprNOVA said:

Thank you! :) I definitely will post my specs to the OC section! I never really gave it a thought but my PSU is cringeworthy (something that I spent a good amount on with the previous build).

Yes, a PSU is one of the most important factors in a computer.  The reason it is overlooked, and people buy generic ones, is simply because spending more money doesnt make the computer any faster.
But, when a computer is pushed, it draws more power, and if that power is flaky (bad PSU) - nothing good will come from it.  Basically, you'll be lucky if it only fries the PSU and doesnt take a few parts with it.

There are 2 easy ways to spot a good PSU - cost and weight.  (Cheap ones dont have much inside, so they are light)

Some good name brands are :
Corsair
Seasonic
Enermax
There are others, but those are some of the most popular.
The ratings (Bronze, Silver, Gold, Platinum, and Titanium) are another way to know quality. (only a couple have the Titanium rating)

But wattage is only half the story - brand/quality is the other.

A cheap brand will test their PSU in a cold testing facility (electronics fail under heat)
So when a cheap maker tests their PSU and it hits 500W for a split-second, they will slap a 500W sticker on there.
A good brand will stress in real world conditions, and if it hits say.. 520W - they will actually downgrade the rating and put the 500W sticker on there to be safe.
(a cheap 500W PSU - is probably more like a 300W in real world settings)

Right now, the Corsair AX1500i Titanium is one of the best, if not the best on the market. And it should be @ $400.  But most builds dont require something that insane.
Capture.JPG

 

Good Luck

Grand Master

Mindovermaster Global Moderator

Posted
  • Global Moderator
Posted
16 minutes ago, Hum said:


^ I've seen real world tests on YouTube, which loaded up a PC with high-end componets, and the machine never drew more than 425 watts or so.

 

Most people do not need 1500 watts.

 

<snip>

 

I agree. 1500 watts is never needed. The ONLY time is like when you do a Quad SLI, and overclock like silly.

 

In a real world, it is not needed. If you just want to show off your system, great.

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