Computer won't post

seeknowsage

Senior member
Nov 22, 2005
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I have had zero problems with my current pc until today. I got on this morning before heading off to work to read my email, check the news, digg, etc. After I was done, I powered it down. I just got home and attempted to power it up but nothing happened. I ensured that all power chords were still plugged in and that the power supply was still switched on. However, when I bent down behind the computer, I distinctly got a whiff of what I can best describe as "new computer smell", despite this computer being well over a year old.

However, after I reseated the power chord to the psu, the computer IMMEDIATELY turned on, without me pressing any button whatsoever. Nevertheless, the computer won't post, and I noticed that the fan on my video card (and potentially other components) erratically spins and shuts down after some time.

Does anyone have any idea of the source of the problem AND how to remedy it? I'm naturally inclined to believe it is the psu (HIPER 580W), but I'm open to all ideas. Obviously, I wish this would just turn out to be some stupid mistake on my part that is easily fixable. Thanks for your time.
 

montag451

Diamond Member
Dec 17, 2004
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Oh, where to start?

Suppose you unplug completely, then replug in -
Firstly, for no other reason than it sometimes works for no apparent reason,
Try a CMOS reset.

If no, take out non needed devices, try again.

Your Hiper psu might well be to blame, but try the above first, and if you have another 'good' psu to hand, shove that one in.
 

seeknowsage

Senior member
Nov 22, 2005
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Montag451,
Thank you for your reply. I hadn't thought of a CMOS reset. I'll give that a shot right now. I was debating about pulling every component aside those needed to post (ram, mobo, cpu), but the inside of my case is all a jumble and not something I'm overly eager to jump right into. However, I'm less eager to have an $1100 doorstop, so I'll probably give that a go next. Thank you for your response!
 

seeknowsage

Senior member
Nov 22, 2005
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Well, I did a CMOS reset by popping the battery. When I plugged the power chord back into the psu, the computer again turned on by itself, but immediately powered down after a few seconds. Now, the computer is completely unresponsive. I'm pulling components out now.
 

seeknowsage

Senior member
Nov 22, 2005
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When I removed all unnecessary components and switched the psu on, the LED light on my Zalman 9700 cpu hsf lights up for about half a second and the rear case fan briefly spins. Beyond that, nothing happened. Is this starting to sound like a screwed psu (or mobo possibly - I interchanged either of my sticks of ram with the same aforementioned result)? If so, what are the chances that it decided to drag down a few other components with it?
 

montag451

Diamond Member
Dec 17, 2004
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Would start off with a new psu.
A good one - but don't get too fancy.

Has there been a storm (lightning/thunder etc)? If yes, good chance the Hiper took some chips with it to that soldering heaven in the sky.
Is your electric supply pretty clean? Do you get surges often?
 

seeknowsage

Senior member
Nov 22, 2005
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Well, I live in Oklahoma, and we've been getting slammed over the course of, well, the past 3 months. So yes, we have had some thunderstorms, but none within the past 2 days. (Furthermore, I do have this computer connected to an outlet through a surge protector.)

My case is pretty clean, and after giving it a look just now, so is my psu. I use a can of compressed air to occasionally clean out the inside of the computer (about once every 3 months).

I haven't really experienced any power surges in a couple of years. However, I've been having to do hard resets due to Battlefield 2142 constantly hanging my system. If anything, shouldn't this affect the hard drives only?
 

montag451

Diamond Member
Dec 17, 2004
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Again, it could be the psu starting to flake out, or RAM or mobo or CPU.
My money is on starting with the psu first.
If you take out the RAM, do you get any BIOS beeps to tell you something is up, or does it cut out before that.
As you have problems starting the system at all, for now, I would rule out the hdds till after we have got past this stage.


 

seeknowsage

Senior member
Nov 22, 2005
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With no ram inserted, nothing happens. The computer still won't post. However, when I was fiddling with the computer just now, I did notice that when I connected the psu, a green light at the bottom of my a8n32-sli mobo lights up, indicating that it is receiving some power.
 

montag451

Diamond Member
Dec 17, 2004
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I think that is the 5v power - just tells you that something is getting to the mobo on that rail.
If you have a voltage tester to hand, you might be able to tell if the psu is broken, but you can't really tell if it isn't broken, if you get my drift.
 

seeknowsage

Senior member
Nov 22, 2005
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Montag,
Thanks for all of your help. I really appreciate it. I think I may be in some (slight) luck however; a friend recently purchased a new pc and has yet to build it. With any luck, he'll let me borrow his new psu tomorrow for 5 minutes to confirm whether or not it is indeed my psu that is at fault. Anyways, thanks again!
 

seeknowsage

Senior member
Nov 22, 2005
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Quick update: I have my computer over at a friend's house right now. I plugged his new, identical psu into my system. Unfortunately, while the system will actually turn on as it normally would and everything appears fine, the system will still not post. I thought this could have been a problem stemming from the system speaker not being plugged in, but after confirming that it was and connecting his new video card to my system, my computer will still not post and nothing is displayed on the screen when the power is turned on.

So in short: With a new psu, the computer will power on and stay on (unlike with my previous psu), but it will still not post.

Any ideas? Thanks again!
 

montag451

Diamond Member
Dec 17, 2004
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OK, nice one for trying that.

If you can borrow your friend's psu again soon, disconnect EVERYTHING from the mobo and the psu except
cpu, cpu fan, bios/case speaker.

Do you get any beeps now?
That is what we are after.
If we still don't get beeps, then (if we take it that the case speaker is working (?)), that leaves the psu, mobo, or cpu.
If it is your friend's psu, then most likely to be cpu or mobo.

Post back when you can.
 

seeknowsage

Senior member
Nov 22, 2005
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Update:

I couldn't get the pc to do anything other than simply power up when I was using a friend's new psu. The pc still would not post. This made me believe that my psu along with an additional one or more of my components were damaged.

After checking, I found my secondary Linux machine did indeed have a 20+4 pin motherboard connector on its psu. I was under the mistaken believe that it was only a 20 pin connector (but that psu blew up LAST summer )= . This meant I could pull the psu out of that machine and test it on my main pc I've been having problems with.

When I plugged in the psu to my primary machine along with only those components necessary to boot as recommended by Montag, the computer would turn on, but would still not post. This once again led me to believe that an additional component was damaged.

To test whether or not this was a bad mobo or cpu, I plugged in an old S939 AMD 64 3200 processor that my new AMD X2 4600 had replaced. If it still wouldn't boot, I'd assume it was the motherboard that had gone bad. At this point, the machine posted.

Therefore, I believe that my processor and psu have become damaged and are unable to function properly. However, just to test the psu, I plugged it into my linux machine to see if it would post. Unfortunately, while the psu would temporarily power the computer and cause the cpu fan to spin up, it would only do so for a few seconds before shutting itself down. This is similar in behavior to what I initially experienced with my primary machine.

So my working hypothesis is as I've stated before: My processor and psu have died.

Based on what I've said, does anyone else agree or disagree with this?

Furthermore, I've already contacted and received an RMA from Hiper. However, considering that I purchased this processor from a seller on the anandtech.com boards, would it be possible to obtain an RMA for the cpu from AMD if it is still under warranty?

Thanks again for your time.
 

montag451

Diamond Member
Dec 17, 2004
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Well done SNS,
One thing is - how many psu's have you gone through in the last couple years?
Also, a cheap psu can easily take out other components when it goes.
A good psu doesn't just convert to DC, but it can also 'take the bullet' if power coming into it is awry.
If your other cpu works, with the other psu, then fantastic.

Good troubleshooting fella
 

seeknowsage

Senior member
Nov 22, 2005
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Thanks for your reply Montag. Over the past few years, I've gone through 3 psu's. HOWEVER: one is still operational (the Antec 350W that is powering the linux box I'm posting from now), I am almost certain the Hiper 580W that was powering my primary computer is dead, and the status of the last (Sparkle 350W) is unknown. I am uncertain of the Sparkle as I am EXTREMELY hesitant to connect it to any working machine give that I somehow fried the 24-pin connection on my old motherboard when I was trying to get my BIOS to recognize the correct timings for some new ram I had recently purchased. Nevertheless, I'd just as rather assume it is dead, but I am extremely confident it was my screwing around in the BIOS settings that brought about the demise of my previous system as opposed to outright failure of the psu (=
 

seeknowsage

Senior member
Nov 22, 2005
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A bit, yeah. (=

I just got off the phone with AMD and recieved an RMA number. The operator did ask me a fair amount of questions, but I did sort of "not really tell the truth, the whole truth, and nothing but the truth" on the where/when I bought it. Nevertheless, hopefully I'll have a replacement soon.
 

montag451

Diamond Member
Dec 17, 2004
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Excellent - (the fact that you are getting a new one, not the fact that you are a fibbing pikey ;-) )
Post back with the result then will ya
 

Linflas

Lifer
Jan 30, 2001
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Originally posted by: seeknowsage
A bit, yeah. (=

I just got off the phone with AMD and recieved an RMA number. The operator did ask me a fair amount of questions, but I did sort of "not really tell the truth, the whole truth, and nothing but the truth" on the where/when I bought it. Nevertheless, hopefully I'll have a replacement soon.

Just curious, did you get your replacement CPU yet and did it fix the problem? This sounds very similar to a problem I posted about in the Motherboards area. My board is an A8N32-SLI deluxe and with the CPU installed or the 12Volt CPU power plugged in the system will power on for 1 second and shut off. With the 12Volt connector removed or the CPU removed the board will remain powered on but no POST. I did try another known good power supply, actually the one powering this machine I am posting from which incidently has the memory from the non POSTing machine in it as well since it has now become my "main" machine until I get the other one fixed. I opened an RMA with AMD through the web and received a denial pending more infornation which I have just sent them this morning.
 

seeknowsage

Senior member
Nov 22, 2005
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Update: I received my replacement psu from Hiper on Monday, July 30th, and my replacement cpu from AMD on Thursday, August 9th. My computer is back up and running exactly as it was before it decided to go boom.

I honestly had a better experience with AMD's rma process than I did with Hiper's, at least up until the very end. A few days had passed since my first email to Hiper requesting an rma. Annoyed by their apparent lack of a phone number for their US customers and irritated by this delay, I sent them a second email worded with what I'd consider to be some slightly stern language stating that unnecessarily long delays and poor communication on their part would facilitate my need to seek future psu's elsewhere. An hour later, I had an rma number. On the other hand, I called AMD (through a local-only phone number) two days after I initially emailed Hiper and had an rma less than 20 minutes later.

I sent both returns off to AMD and Hiper on Thursday, July 19th, via UPS ground from Norman, Oklahoma. Both of these companies had return facilities in California that were very near one another, and so both received their respective packages on Thursday, July 26th. Later that day, AMD had inspected my processor and approved its rma.

However, Hiper had poor communication throughout the entire process and did not notify me of my psu's status. I attempted to call them on Monday, July 30th, via a local number provided in the email sent in response to my "stern" email. I was connected with a person that spoke heavily accented English, but who was nonetheless understandable and friendly. This person attempted to find the status of my psu but could only ascertain that it was still in the "testing process".

On Monday, August 6th, my replacement psu arrived. Later that day, I called AMD to inquire about my cpu. I figured two weeks was more than enough time to send a cpu back to Oklahoma. As it turns out, AMD had approved my rma but never scheduled shipping for a replacement cpu. According to the rep I talked to (Chris), this was due to AMD moving its warehouse. He told me he'd check for any replacement cpu's in their office and return my call in a few minutes. After a few hours and right before local closing time, I gave him a call back to find out what was going on. He had found a replacement cpu, but it was oem. Regardless, he entered the cpu in as retail for the three-year warranty and sent a stock hsf along with it. When I pressed him on some written confirmation of it being counted as retail, he initially balked. We nonetheless compromised on an email stating that the cpu would be considered retail. Finally, on Thursday, August 9th, the cpu arrived via DHL.

So in the end, despite Hiper's poor communication (in addition to the above call, I had emailed them a few times for status updates but received no response), they had a quicker turnaround than AMD. This was due in large part to AMD's failure to notify me in regards to the movement of their warehouse. (If I hadn't called, I'd probably still be out of a cpu for some time to come.) Overall, I am happy my system is back up and running. However, despite having sleek and modular psu's, I think I'll seriously consider other power supplies over those made by Hiper for future systems. And I have already decided to go with Intel for my next system. (=


Summary:
July 16 - Computer broke. Sent an initial email to Hiper requesting psu rma
July 17-18 - Confirmed both psu and cpu were definitely dead
July 18 - Emailed Hiper second time, received psu rma; Called AMD, received cpu rma
July 19 - Shipped both psu and cpu to their respective companies via UPS ground
July 26 - packages delivered; AMD inspects cpu and confirms rma
July 30 - Called Hiper, told psu is still being inspected
Aug 6 - Replacement Hiper psu arrives; Called AMD twice, oem-as-retail cpu sent out
Aug 9 - Replacement AMD cpu arrives
Aug 11 - I post this because I was lazy for two days. (=


(The real kicker of all this? My XBOX 360 ALSO died when I stuck in a PRISTINE copy of Overlord on July 30th. I hadn't played my 360 in nearly 2 months and it was in excellent condition, at least until that point. As soon as I power the 360 on with the disc properly seated inside, the dvd drive basically chokes and pukes all over the disc. Afterwards, I'd get "Unreadable Disc" errors on every game/dvd I owned. Moreover, my ps2 refuses to read discs now as well! I think my place is just cursed. )=