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View Full Version : PC taking 30+ seconds to boot up



buemba
28-01-2012, 01:50 PM
So I recently built my first pc and it's been working great, except for the fact that when I press the power button the power led lights up immediately, but the pc takes 30 seconds or more to start powering up.

None of my previous machines did that, and since the pc is hooked by the same cables to the same UPS they were I think I can rule out external factors. So does anybody have any idea what could be causing this?

JohnnyK
28-01-2012, 01:52 PM
If you need tech help, always post your specs.

Also, with "boot up", do you mean go through the POST - so it takes 30 seconds until Windows starts loading?

buemba
28-01-2012, 02:07 PM
Specs:

Intel i5 2500k
Asus P8Z68-v Pro
Radeon 5770
8GB Corsair Vengeance DDR 3 RAM
650W Corsair TX power supply
1TB Western Digital Caviar Black
Windows 7 Pro
800W UPS

And I mean it takes about 30 seconds for POST to start. So between me pressing the power button and the first screen appearing (The one that says "press DEL to run setup") there's a 30 second gap.

Rii
28-01-2012, 02:41 PM
Do the fans spin up immediately? With the exception of the delay is the power button otherwise reliably responsive in performing its function or do you have to mash at it sometimes? Does it POST immediately if you restart the PC from an operational state?

You could try procedurally stripping everything out that isn't necessary for the system to POST and seeing if anything changes: video card, RAM, HDD, optical drive, etc.

You can isolate the power switch itself as a potential problem by bridging the relevant pins on the motherboard manually with a fork tine or something to start the system. I forget the relevant pins but the diagram should be in your motherboard manual.

... tried not running it through the UPS?

JimTheDog
28-01-2012, 03:54 PM
What about the BIOS reset pins? I seem to recall (but cannot recall clearly) the computer taking an age to boot when resetting to factory defaults.

buemba
28-01-2012, 04:24 PM
@Rii

No, they only start when the POST start. Yep, the button is pretty responsive. The problem only appears in a cold boot if the PC was turned off for a while, but resets or even shutting it down, waiting just a few minutes and then turning it on again work perfectly.

Thanks for the suggestions, I'll try them later.

And yeah, I already removed the UPS from the equation and the problem persisted.

@JimTheDog

Sorry, but what are the BIOS reset pins?

Rii
28-01-2012, 04:31 PM
@Rii

No, they only start when the POST start. Yep, the button is pretty responsive. The problem only appears in a cold boot if the PC was turned off for a while, but resets or even shutting it down, waiting just a few minutes and then turning it on again work perfectly.

mmm, this sounds like a capacitor issue, either on the motherboard or inside the PSU itself. Do you have access to another PSU that you can plug in to test?

buemba
28-01-2012, 04:38 PM
mmm, this sounds like a capacitor issue, either on the motherboard or inside the PSU itself. Do you have access to another PSU that you can plug in to test?

No but this is the same PSU I was using on my previous computer, and that didn't have this problem.

...Which would mean a motherboard issue. Oh man...

Rii
28-01-2012, 04:51 PM
No but this is the same PSU I was using on my previous computer, and that didn't have this problem.

...Which would mean a motherboard issue. Oh man...

Well PSUs can develop problems ... but yeah I'd say you're looking at a return of one or the other component...

buemba
28-01-2012, 04:57 PM
Well PSUs can develop problems ... but yeah I'd say you're looking at a return of one or the other component...

I'll see if I can get another PSU to test this.

Thanks for the help, everybody.

bazookavortex
28-01-2012, 10:07 PM
Could be gfx card too. Try to re-seat it or just running on igp to see whats happens.

Odeon
30-01-2012, 06:10 AM
You should also re-seat your RAM and/or try installing one stick at a time and see if the problem persists. Typically the CPU and the RAM are the only things that will cause POST to be delayed or not happen at all, but a partially-seated PCI or PCIe card could do it too.

JimTheDog
30-01-2012, 08:36 AM
On the motherboard somewhere there's usually a group of three upright pins with a plastic-covered jumper connecting two - often labelled something like 'JP-1'. Usually you'll need to dig into your motherboard's manual to find the details for where the hell they are.

If you can't find the actual paper one, a search on your manufacturer's website should do the trick - usually this is detailled in these sorts of manuals under clearing CMOS/BIOS, or resetting the motherboard's password, or something along those lines.

trjp
30-01-2012, 12:46 PM
In any given thread it seems someone has to bring up either capacitors or overheating as some sort of cure-all explanation doesn't it? :)

The more logical explanation is that something is either faulty, wrongly configured or has a dodgy connection - and the way forward is to test everything individually (which requires spare parts or another PC or a trip to the PC shop, really).

Also - a good look through the BIOS to see if there are any options in there for 'quick boot' or 'skip checking' or other stuff which can slow-down a boot isn't a bad idea at this point. Long startups are often a sign of a reset BIOS (bad battery or connection) but 30 seconds is a LONG time - that's usually more like 4-5 seconds.

I have my doubts that the PSU would cause a slow startup but have no other ill effects - but it's not impossible and it should be tested if you can find a spare/another PC to try it with.

Otherwise remove everything (except the CPU!) - disconnect all the drives (including their power cables), remove the memory DIMMs and if the mobo has onboard video, connect that and remove your GPU (if not, you need to find a way of testing that GPU and/or another GPU to test).

What you're looking for is whether the PC takes as long to notice it has no memory/HDDs or whether it's one of those things which is causing the pause. If the pause disappears with stuff disconnected, reconnect 1 item at a time until the problem either recurs (you've found the problem item) or doesn't (whoopee!!)

If the pause is still obvious with nothing connected (including a diff GPU and PSU) then it's either the board or the CPU and that's obviously a pain in the ass but that's life.

GL!

p.s. I guess the mantra is "have a spare everything and test everything individually" :)

buemba
30-01-2012, 06:25 PM
Looks like my best bet is taking my PC to a repair shop. More expensive than DIY, but hopefully more reliable as well and it won't require me to strip a friend's machine for parts.

Thanks guys.

JiminyJickers
31-01-2012, 05:15 AM
A bit late to the party but have you done any overclocking?

I recently had a small go at this and my computer did the same thing. It took quite a while just to start booting up. After that nonsense I decided that overclocking was not for me. Computer runs fast enough as it is.

DigitalSignalX
31-01-2012, 08:30 AM
I remember when PC's took whole minutes to boot up. You kids today, I tell you.

buemba
31-01-2012, 12:03 PM
@JiminyJickers

Yes, but I already tried returning it to stock speeds and the problem persisted.

@DigitalSignalX

True, but back in those days PCs also had bitchin' turbo buttons built in and loud as shit modems that woke everybody in my house with sweet robot noises whenever I tried to connect to the net to look at some porn at night. If my current computer is going to take that long to boot it better have one of those cool features too.

Odeon
01-02-2012, 12:08 AM
Before you go spending any money, try the simple things first. Unplug all non-essential things (everything but the CPU, RAM, and GPU unless your mobo has an integrated one) and see if you still have the issue. A failing hard drive can cause the POST to take a lot longer, though I'm not sure it would cause boot-up to pause for 30 seconds before POSTing even starts, but it's worth a shot and it's free.

buemba
02-02-2012, 03:31 PM
I tried that, but the problem persisted. The only things I couldn't test were the PSU, the motherboard and the processor, since I don't have spare ones lying around, but I think I tried everything else.

Odeon
02-02-2012, 06:52 PM
Damn. Okay, so if you turn off the computer for more than five or ten minutes and only have the PSU, CPU, GPU, and one stick of RAM installed, it still takes 30 seconds or more between pushing the power button (when the power light turns on) and POST and the fans starting up. I take it only the power light turns on, not the HDD light, right?

Without replacement parts to try out, there's little left to try. Have you tried pulling the power cord from your PSU for a while, say at least a minute? Does the PSU have an on/off switch at the back and does it make any difference if you switch if off and back on again?

trjp
04-02-2012, 03:10 AM
Just to add to this that PSUs can do some WEIRD stuff when they're shonky - I had a PC here last year which would work for 7-8 days AOK and then start randomly resetting just a few mins after boot. Leave it off for a few days and it would work OK for a week or more again!? PSU replaced - problem solved.

Similar issues with another PC tho and Mr Cocky here just changes the PSU. 3 weeks later the PC back with exactly the same problem - which suggests that the motherboard of the PC was what was actually breaking the PSU!! That one is in a skip now...

JohnnyK
04-02-2012, 12:56 PM
Where are you located? In the EU, you have at least a 7 day period for online purchases after you have received the item where you can return it for a full refund (details (http://europa.eu/youreurope/citizens/shopping/online-shopping/returning-unwanted-goods/index_en.htm)). You only have to pay the postage fee. So maybe order a replacement PSU online and try that?

trjp
04-02-2012, 07:55 PM
Where are you located? In the EU, you have at least a 7 day period for online purchases after you have received the item where you can return it for a full refund (details (http://europa.eu/youreurope/citizens/shopping/online-shopping/returning-unwanted-goods/index_en.htm)). You only have to pay the postage fee. So maybe order a replacement PSU online and try that?

The UK version of that law allows the seller to not refund return postage (they just have to state they won't at time of sale and most e-suppliers do that) - and recorded postage on a PSU isn't going to be insignificant (3-4 at least).

I'd suggest buying a half-decent PSU - if it fixes the problem, great and if not, put it to one side as a spare for 'next time'.

buemba
04-02-2012, 11:21 PM
Well, PC is in ye olde repair shoppe. Turns out one of my buddies did have a spare PSU, but I learned that too late.

Still, while that's possible it would be pretty odd for it to be the PSU. Like I said, it's the same one I used on my last machine that didn't have this problem (Plus it's less than a year old), and it would be odd for it to develop a problem at the exact time I put it in my new machine.

Of course, now that I said it of course it's gonna end up being the damn PSU.

@JohnnyK

Brazil has a similar law (Though here it also covers the shipping cost). Good call, next time I'll try that.

Odeon
05-02-2012, 06:33 AM
Pfft, here in "The Land of the Free" there's no such law. A small number of shops (which covers all kinds of vendors, not just PC stores) that truly care about customer service will either email you a UPS label that you can print and tape to the box or (even rarer) will include a return shipping label. For the rest (about 99% of the time), if they allow you to return an item, you'll be paying for shipping up-front and will never see a refund for that unless they actually sent the wrong item (and even that's not even close to guaranteed).

Anyway, I'm sure I'm not the only one curious to find out what the problem is, so post an update when you get the results. It could help someone else one day. ;-)

buemba
23-02-2012, 08:19 PM
Anyway, I'm sure I'm not the only one curious to find out what the problem is, so post an update when you get the results. It could help someone else one day. ;-)

It was the motherboard. Something about it not being able to maintain a stable current of power to the CPU.

...At least that's what I was told.

Odeon
25-02-2012, 05:35 AM
Wow, that's interesting. Were you able to get the mobo replaced under warranty?

buemba
27-02-2012, 09:59 PM
Ended up replacing it at the store where I bought it. I've been going there for years and was about to buy all the components for my sister's new PC there, so it didn't take long to convince them to help me.

Odeon
28-02-2012, 06:01 AM
Sweet! It's good to hear that there are still some computer parts stores out there that actually care about their customers and not just their money.