Power On Self Test, a routine that a device runs immediately after turning on.

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Long continuous POST beep (40 seconds)

I have this long continuous tone every time I start a PC. Doc says it is loose card. But I think I attached everything well. I was wondering how can I get rid of this tone?? Motherboard type - ...
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19 views

PC hangs during post when webcam is plugged in

My PC keeps hanging during POST, just before identifying the amount of RAM, anytime I have my webcam plugged in. If I unplug the webcam, it will unhang and continue to boot up just fine. It also ...
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1answer
34 views

Strange start-up behavior

I'm trying to repurpose a machine that I was previously using to run Mythbuntu. It's only been a couple of months since it was last running, but now I'm getting strange behavior when I turn it on. ...
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46 views

No POST on new built desktop

I just finished building a desktop again and it will not perform a successful POST. No beeps or video either. Since my goal is a successful POST, i removed all irrelevant hardware already and am only ...
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20 views

Defective hard disk: Software evidence of last functional activity?

I am calling for Stack's arcanes to know whether it is possible to provide software-based evidence of a Windows 10 laptop's last operational activity before the hard drive went nuts. The scenario is ...
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26 views

Trying to recover failed HDD. With the SATA power cable plugged in to this other computer, it fails to POST.

At first I was having issues with all my hard drives, but I after some tweaking with this test config, all my HDDs work... Except the one I'm trying to recover in the first place. Its a newer one with ...
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31 views

Delayed PC boot

I have pretty powerful system, that used to be able to go from power on to login screen in under 10 seconds. However, fairly recently i've noticed strange behavior: After press of power on button, ...
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1answer
25 views

Graphics card causes motherboard to delay power off

Recently a glass of fruit juice was dumped into my tower. I immediately scrapped the motherboard and power supply unit, replacing both, and attempted to salvage both the RAM, GPU, and the CPU. I took ...
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1answer
92 views

acer aspire x3995 desktop continuous beep on startup

PC was beeping 4 short beeps and after some google decided to move ram to a different slot. I didn't ground myself and now it continually beeps on startup. I have unplugged everything from mobo ...
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22 views

Setting SATA to RAID causes PC to not POST

I seem to have broken my PC by trying to create a RAID array. I created the array just fine but forgot to load the RAID driver on my system drive which is not part of the array, I set SATA back to ...
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28 views

CPU or Graphics card defect?

From time to time my computer dies while in usage. The screen either turns completly white, black or shows thin vertical stripes in two colors. I then have to kill it with the power button. When I ...
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1answer
45 views

Graphics card or mainboard defect?

My PC has the following specs: eVGA Z68 FTW Mainboard AMD Radeon HD 7970 Graphics Card I am having the following problem: My PC had a White Screen yesterday (the whole Screen turned White while ...
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73 views

Computer Doesn't Always Turn on when Pressing Power Button

I have a desktop and my case's power button stopped working after a while. I reverted to using a small screw driver or paper clip to turn my computer on by touching the contacts on the motherboard ...
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16 views

No post on restart or with reset switch

I have upgraded to MSI Z87-G45 and 4690k from an AMD build and cannot get it to restart or reset with the switch. It will just stay on with the fans spinning but never post. What can cause this issue? ...
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29 views

curl -X POST not working properly?

Here's what I'm running as a test and it is working: curl -X POST http://zone-h.org/notify When I run that, I get the HTML of the page returned. However, when I run this, it isn't returning the ...
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1answer
572 views

ASUS Rampage IV Extreme Debug error code 79 and 5A

While working on Windows 10, my desktop computer suddenly rebooted itself and stops to display a POST screen. Computer was running on low profile and has never been overclocked. Computer ...
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34 views

MoBo Post Test - GPU & Integrated Graphics

I am building my first PC. I have all the parts and have been advised to perform a power-on self-test (POST) test before installing the MoBo into the case. I am using a MSI Krait Edition Z97S mobo ...
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20 views

Desktop won't turn on

So I have been having problems for a while now (probably about 7 months) with my computer not turning on after it gets shut down, but the problem somewhat subsided and didn't give me any real issues ...
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1answer
94 views

POST Beeps questions for a new build

I've read many links about the different types of beep that a MoBo will make depending on the problem, however my current issue doesn't seem to be answered anywhere. I have a MSI 990FXA Gaming AMD ...
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1answer
14 views

Computer turns off a second after powering on

It doesn't even post. No beeps, flashing lights or anything. All the fans spin up for about a second and then it switches off again. I've tried disconnecting everything, so it's just a power supply + ...
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6answers
308 views

Diagnose a Asus N550JV laptop that turns off during POST

On my Asus N550JV laptop, if I push the power button, it lights up for half a second then turns off. The green indicator light on the front lights up when AC is plugged in. I tried unplugging, ...
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69 views

Supermicro X9SCA-F won't POST anymore

I have about 20y of experience building systems (mostly for myself), but I have never seen a thing like this: Since about 3y, I have a Xeon 1230V2 on a Supermicro X9SCA-F rev 1.01 and 32GiB ECC RAM ...
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1answer
134 views

ASUS Sabertooth Z77 + i7-3770K CPU LED Error

After two weeks and hours of testing, researching and stripping machine down to just board, psu and proc outside of box, I am still getting a CPU LED Error which is causing the unit to not post. ...
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18 views

Track visits on a external post (tumblr,facebook,twitter)

Good day all. I'm not sure this is the right place to post this question, but it sounds better than stackoverflow, please let me know if the question is OT. My goal is to produce a script that tracks ...
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61 views

On startup video card's fan is not spinning, blank screen, only fan works

I have a Intel DG33FB motherboard with 2.6 GHz processor, 2GB RAM and Gigabyte GV-N430 2GB video card with Windows 7 installed. At first it worked, but I wanted to change the CPU to a new 3.2 GHz ...
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111 views

MSI Z170A fails to boot with code 78?

I have built a new PC using a MSI Z170A motherboard and I'm experiencing some issues; The PC boots fine every other power on When the PC doesn't boot, the on board LCD screen has the code 78 on it ...
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91 views

Computer hangs at POST, sometimes

I had an issue where sometimes the computer would hang at startup, during POST, with either a code 67 or 99 on the motherboard's debug LED (Asrock Z77 extreme4). If it was the former (code 67), the ...
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1answer
88 views

Does the boot start of a PC (POST) use the discrete GPU to render the black-and-white text?

Background of the question: My PC no longer POSTs; no sounds and lights appear at all (I.e., no reaction whatsoever after pressing the power button). I want to isolate the component that is likely ...
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1answer
36 views

Changed slots of RAMS and PC is now working, next day, its not working again

This is a continuation of this: PC suddenly not turning on. Fan is super noisy and fast. Screen not turning on too I already gave up on the pc but yesterday, i decided to check it out again. I tried ...
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1answer
112 views

Computer won't POST after motherboard/CPU being replaced as DOA

I got a bunch of computer parts recently (that's not quite complete, but is pretty much). It's currently plugged together sitting on desk in pieces, the motherboard sitting on its cardboard box, with ...
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0answers
44 views

Unable to POST Gigabyte F2A88XN-WIFI, amd A8 7600 Apu

I've not been able to POST with the given hardware. When starting up. The screen freezes halfway whilst attempting to enter the bios. I've tried the dvi and hdmi connections but both ddn't work. Hope ...
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124 views

Gateway Acer Dx4870-Ub21P desktop has 3 short beeps after startup

Gateway [Acer Motherboard] Dx4870-Ub21P desktop has 3 short beeps after startup. Ran a Memory test at startup and it was OK. Can not find post codes for Acer. Disk drives also check out. About 2 ...
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1answer
39 views

Testing hardware in computer that fails to POST

With a computer that powers on and runs its fan, but doesn't get any further, what would be useful troubleshooting steps and diagnostic equipment (if any)? It seems undamaged to look at, and the user ...
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1answer
542 views

Computer only turns on after many hours off/unplugged

I'm having a problem with my PC. My computer specs are: Mobo: Gigabyte GA H81M S2PV Proc: Intel Pentium G3220 Ram: 2x8GB 1333MHz Kingston (Passed on Mem86+) PSU: Corsair CX430 III HDD: Seagate ...
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170 views

Flashing BIOS using an external SPI programmer

Has anyone succeeded with BIOS flashing using an external SPI programmer ? I saw some cheap serial flash spi programmers on eBay for very cheap price such as $3. (CH341A based programmers) I was ...
2
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0answers
240 views

Posting XML wrapped in SOAP posted using Curl results in invalid XML character was found exceptions

Sending an XML file using curl results in: Invalid XML character (Unicode : 0x<integer>) Attempt to solve the issue According to this SO answer the issue will be solved if the XML version is ...
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2answers
2k views

Toshiba Satellite E45t Stuck on Initial Splash Screen

I have a Toshiba Satellite E45t-A4100 laptop which won't get past the Toshiba Leading Innovation screen. Yesterday I used it until the battery drained out completely, then I plugged it in and powered ...
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1answer
170 views

Common beep codes reference [duplicate]

What are the common beep code alerts for most BIOS out there? Author note: I'm posting this QA after finding an excelent resource leading from this QA
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1answer
414 views

Intel server motherboard S1200V3RPS diagostic LED displays unlisted POST code

After some initial hiccups, I was able to get the Intel motherboard to at least power up. Now it does not start the boot process. I tried to understand the LED displays which explain problems ...
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177 views

Computer does not boot, even POST does not execute

I had some problems with booting windows for last weeks. I needed to select boot device every time to boot Windows. Resetting several times to default values didn't helped so as reinstalling different ...
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73 views

Intermittent PC POST - what else to check

I know there are thousands of questions where a machine won't POST or boot, but I'm experiencing something slightly different. I've got a fairly standard desktop (motherboard with onboard graphics, ...
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1answer
33 views

New 450w PSU boots up but no post/signal from the motherboard

I have a problem reagrding my new 450w that's not functionning correctly, there is no post or any signal from the motherboard. I made sure that other parts are working. here is the config: CPU: Intel ...
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1answer
937 views

Motherboard not POSTing: ASUS Crossblade Ranger, Q-code 00

I've been using this computer with a ASUS Crossblade Ranger for the past year. Seemed to work great for a while, but POST times have become exponentially slower over the past few weeks. Everyday I'd ...
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2answers
67 views

New PC won't POST or boot [closed]

I finished the build of my new PC, and when I go to turn it on, nothing happens. I get no video and no POST beep. I removed the ram and turned it on again and it began to beep non stop. I used a ...
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1answer
137 views

Computer won't boot or POST

I'm trying to boot a config with : MB : MSI H81i / CPU : Intel Pentium G3420 / RAM : G. Skill F3-12800CL9D-8GBRL I have no graphics card installed (i use the motherboard integrated one). When i ...
0
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1answer
336 views

Wget/Curl post form and get php message

Platform, client and server: Ubuntu 14.04 Server I have the following html form with php (called 0.php): <?php $message="akjwhdhawjkhdwakjhd"; if(isset($_POST['login'])) { if ...
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61 views

Computer boots with no display, hitting enter restarts computer?

As per thread title. I'm unable to diagnose the issue since I cannot get a visual output on my monitor. The fans and components seems to boot up normally. However, I've noticed that if i hit enter ...
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1answer
296 views

Fastest way to upload a file? via FTP or POST?

I have a file around 1-50 MB. I want to upload it to my server (website). In my website I don't need to log in, all I have to do is send $_POST informations directly to the main page for the file to ...
0
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2answers
297 views

What's the name of the box that appeared before “PCI Devices Listing” and “Verifying DMI Pool Data”?

Some 20 years ago computers used to come with a hardware setup that after BIOS POST but before booting from the disk or device, they showed a box made by ascii "box drawing characters" art, one like ...
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1answer
406 views

POST failure - Motherboard, PSU, GPU or other?

Last night, I was playing Far Cry 4 and had been at it a good hour or two when the sound suddenly broke up and stopped; next the PC switched itself off. It tried to reboot, but keep failing in a ...