no beep no post

Asus P5n-sli motherboard
October 18, 2009 at 18:05:14
Specs: Windows vista 64
Okay, I made a post and then it erased it all when I hit preview, so here is a short version.

My computer will power up, all fans runnign full speed and all components seem to be operational. However, my computer does not POST or give any beep/messages (with speakers on full blast). Before this, I was getting a ton of BSOD so I upgraded all my drivers, however this obviously didnt help because its a hardware problem as it wont POST.

Things I have tried:
-switching out ram
-test ram with memtest (before the computer stopped posting)
-removed all ram (got no beep/message)
-removed CPU (got no beep/message)
-removed all video cards (got no beep/message)

Possibilities:
PSU:
I don't think its the PSU because the everything in the computer lights up, fans go at normal speed, and everything seems to have power. However, the PSU fan stopped - but it stopped working months before the problems started. Also, the PSU doesn't get real hot, even after a few hours of play. You see, when I first got the computer I was worried about overheating, because of sli cards, so I added additional fans and paid for "professional wiring" for optimal air flow (hell, it works). No, I havn't tried switching this out is because my older PSU was to old. (didnt have all the proper connectors for even the basic MOBO connection)

My question is:
-is it possible for a PSU to look like it all comes on, but still not have enough power for a MOBO to start POSTing?

RAM:
Im almost 99% sure its not the ram. I tried using my brothers ram, didnt do anything. Before the POSTing problem happened I tested my ram with memtest for about 12+ hour - got no errors. Also, I have tried all my ram (4 sticks) individually, in different slots, and nothing happened.

CPU:
I think it "could" be this because before the POSTing problem I did test this and with a 12+ hour test I got 1 error. However, I did take this out completely and my MOBO didnt give me any error. Then problem with this is I can't test my CPU because I don't know anyone with a MOBO compatible with intel.

MOBO:
This is what I ultimatly think it is because I cant get ANY beeps/messages no matter what I tried. I tried reseting CMOS, did nothing. Also, no it is not shorting out in the back (this was made professionally for me and I checked.)

Question about MOBO:
1. Is it possible for it to look like power if flowing through the computer, all parts running normal, and the MOBO still be fried?
2. Someone on another website mentioned that a MOBO test is to see if num/scroll/caps lights work if you press them. Is that a viable way of testing it? (if so, my lights on keyboard wont turn on if pressed)

Anyways, here are some BSOD errors before the POSTing problem:

*** STOP: 0x0000004E (0x0000000000000099, 0x000000000002FDBA, 0x0000000000000003, 0xFFFFFFFFFFFFFFFF)
-------------------------------------------------------

PAGE_FAULT_IN_NONPAGED_AREA

*** STOP: 0x00000050 (0xFFFFF88012EBDB40,0x00000000000000001, 0xFFFFF80001F39CC1, 0x0000000000000002)
_______________________________________________________

IRQL_NOT_LESS_OR_EQUAL

*** STOP: 0x0000000A (0xFFFFFa8017D16EE8, 0x0000000000000002, 0x0000000000000001, 0xFFFFF80001EB3F58
_______________________________________________________

DRIVER_IRQL_NOT_LESS_OR_EQUAL

*** STOP: 0x000000D1 (0x000000000000004D, 0x00000000000000002, 0x0000000000000000, 0xFFFFFA6003A0F544)

*** HDAudBus.sys - Address FFFFFA6003A0f544 base at FFFFFA6003A0B000, DateStamp 49e02d1a
_________________________________________________________

SYSTEM_SERVICE_EXCEPTION

*** STOP: 0x0000003B (0x00000000C0000005, 0xFFFFF800026C996B, 0xFFFFFA600C76E040, 0x0000000000000000)
__________________________________________________________

SYSTEM_SERVICE_EXCEPTION

*** STOP: 0x0000003B (0x00000000C0000005, 0xFFFFFA60043D7105, 0xFFFFFA600A8E9FC0, 0x0000000000000000)

*** Npfs.SYS - Address FFFFFA60043D7105 base at FFFFFA60043CC00, DateStamp 49e0227e
________________________________

*** STOP: 0x000000D3 (0xFFFFF9600034B1E0, 0x000000000000000C, 0x0000000000000000, 0xFFFFF800024DEB6E)

win32k.sys
_________________________________

*** fltmgr.sys - Addess FFFFFA6000A825D4 base at FFFFFA6000A80000, DateStamp 49e0228e


Here are my computer specs:

Case (Nzxt Alpha Gaming Tower Case w/420W Power Supply Black )
Case Lighting ( Cold Cathode Neon Light Blue )
Power Supply ( 650 Watt -- NZXT PRC-650 Power Supply SLI Ready )
Processor ( [=== Quad Core ===] Intel Core 2 Quad Processor Q6600 (4x 2.4GHz/8MB L2 Cache/1066FSB) )
Processor Cooling ( [=== Silent ===] Extreme-Performance INTEL CPU Cooling Fan System Kit Silent & Overclocking Proof = Maximum cooling efficiency for quietness and performance )
Motherboard ( Asus P5N-E SLI nForce® 650i SLI Chipset w/6-channel CODEC, Gb LAN, S-ATA Raid, USB 2.0, IEEE-1394 Dual PCI-E MB ) (socket 775)
Memory ( 2048MB [1024MB X4] DDR2-800 PC6400 Memory Module Corsair-Value or Major Brand )
Video Card ( 2x NVIDIA GeForce 8600GTS 512MB w/DVI + TV Out Video )
Video Card Brand ( === High Performance === eVGA Brand Video Cards [SLI enabled] Powered by NVIDIA )
Hard Drive ( 320 GB HARD DRIVE [Serial-ATA-II, 3Gb, 7200 RPM, 16M Cache] )
CD-RW/DVD-RW Drive ( [** Special !!! ***] 20X Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive Black )
Sound Card ( None (i had a creative lab but I removed it soon after getting the computer, because it was imcompatable with vista)
Speaker System ( Logitech X-230 2.1 Configuration Speakers System )
Network Card ( Onboard LAN Network (Gb or 10/100) )
Operation System ( Microsoft Windows Vista Home Premium

Please help, thank you.


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#1
October 18, 2009 at 18:57:54
To get beep(s) you need a working PSU, motherboard and CPU.

To get a display you need the above and good RAM and graphics adapter.

(edit) "-is it possible for a PSU to look like it all comes on, but still not have enough power for a MOBO to start POSTing?"

Absolutely. The PSU has to supply several voltages and if the right one is out of tolerance or missing, the motherboard will not work.

Also it's possible that a defective unit connected to the motherboard might keep it from operating.


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#2
October 18, 2009 at 19:19:25
So your suggestions is to replace/check the PSU? Its been so long im at the point of just buying whatever.

So any suggestions on a PSU?

I was thinking of something like this:

http://www.newegg.com/Product/Produ...

or

http://www.tigerdirect.com/applicat...

All I know is my current PSU is made by "Cool Master" and that fan lasted exactly 13 months. -_- Perfect engineering on there part, to bad i remember names :P


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#3
October 18, 2009 at 19:31:37
I didn't suggest anything. I just gave some troubleshooting tips.

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Related Solutions

#4
October 18, 2009 at 19:43:52
Okay, thanks for the info.

So a few questions?

1. So, a mobo wont beep if the CPU is missing? sorry for the clarification, but there is no beeping for a bad cpu (is the more specific question)? If so, i find it weird.

2. by defective device you mean something attached to it (i.e. on board sound card) or plugged into it (i.e. video card)? What if I take all the thing off except MOBO, PSU, and CPU; would that eliminate all of those pieces if the MOBO doesnt give me a beep?


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#5
October 18, 2009 at 20:17:25
"So, a mobo wont beep if the CPU is missing?"

No. It won't.

"What if I take all the thing off except MOBO, PSU, and CPU; would that eliminate all of those pieces if the MOBO doesnt give me a beep?"

No. If you've somehow had a serious P/S problem that has taken out several items, then you could just be removing bad components from a bad motherboard. BTW, the beeps won't come from the speakers attached to the sound card/jack but from an internal speaker which should be attached to or mounted on the motherboard...


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#6
October 18, 2009 at 20:44:42
A better way of saying would be, 'if I only have the PSU, motherboard and CPU connected and do not get any beeps, then one or more of those components has a problem'.

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#7
October 18, 2009 at 20:51:06
Thanks, I appreciate the help.

I have the speakers hooked up to the on-board mobo sound card... as I don't have any other sound card/spot to plug them in. So, that has to be in the right spot.

I'll try some more tomorrow with disconnecting everything at once, and only having those running.

P.s. can a bad/dead mobo CMOS battery cause this?


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#8
October 18, 2009 at 20:51:44
"'if I only have the PSU, motherboard and CPU connected and do not get any beeps, then one or more of those components has a problem'."

You should add RAM, as well. If you add memory, and don't have beeps, then one of those 4 components has to be at least part of the problem...


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#9
October 18, 2009 at 21:16:13
"I have the speakers hooked up to the on-board mobo sound card... as I don't have any other sound card/spot to plug them in. So, that has to be in the right spot."

You have to have an internal speaker to hear the BIOS code beeps. Speakers connected to the sound card don't work until drivers are loaded (and that apparently can't happen given your current issues). Look at page 50 in the manual for the location on the motherboard for the internal "system warning speaker" connection (found here):


http://static.tigerdirect.com/pdf/A...


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#10
October 18, 2009 at 21:46:50
im sorry that link did not work. Ill try to search for that specific manuel.


my online manuel, and the one that came with it both are bios configurations on page 50.

If possible, another link and/or provide the name of that specific manuel. (in case I cant find it).


EDIT:

in my manuel (user manuel) on page 1-36 it says:

System Warnin Speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings.

So I look on my mother board and that isn't connected.

Should I have gotten that wire when I purchased my computer? Because I don't see it at all (in my spare or in all my tied up wires).

If its supposed to be already attached or just unattached hanging around, let me know because ill go in and untie all those wires and look for it again.

Regardless of the answer (cuase i may not have it), where do I go about getting one of these? I don't know the names of these wires ethier.


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#11
October 18, 2009 at 21:59:42
Some motherboards have built in speaker, so if you don't see any connection for a speaker, not to worry..

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#12
October 18, 2009 at 22:09:02
If there's no onboard speaker, then yes, you'll have to have one before you can determine the BIOS issues (if that is the problem---it now may or may not be)...

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#13
October 18, 2009 at 22:20:06
"Regardless of the answer (cuase i may not have it), where do I go about getting one of these? I don't know the names of these wires ethier.

Should be able to find one at RadioShack or some electronics distributor, but you'll need one that fits the pinout on your MoBo (unless your comfortable with "rigging something up"). This looks like a close match (but not sure what your pinout is):

http://www.allelectronics.com/make-...


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#14
October 19, 2009 at 20:37:05
This looks like a close match (but not sure what your pinout is):

Can you give me some tips on how to explain stuff? When it comes to software, I kinda know what im doing. Hardware, totally different realm for me.

From what I see, and the manual describes it, I have 4 male, 0 female. (Meaning 4 metal pieces sticking out, and no holes). Sorry, I don't know the proper lingo for this. I just want to make sure when I go to radioshack or a computer store I buy the right part.


EDIT:
Okay, because I cant post an image, ill describe the picture in the manuel.
The connector has two rows, 10 columns. The top right 4 is the speaker section. Out of the 4, the from top left to top right:
+5v, ground, ground, speaker.

Hope that helps.


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#15
October 19, 2009 at 22:31:45
FWIW, I'd advise taking a photo (below) and your manual to wherever you purchase the speaker from. Someone with some basic PC knowledge should be able to figure your pinout (since you can't post an image)...

Here's probably the best image I've found:

http://www.coolermaster.nl/shop/ima...

Technically, the exact type of speaker shouldn't matter (but it likely does need to be 8 Ohms, and something around 0.25W). The photo shows a red and black wire for the connection (on pins 1 and 4), but it really wouldn't matter if you wired it up backwards, since sound is alternating-current (thus doesn't really have a polarity). Just make sure you get something that matches the pinout on the MoBo. Just remember that this may or may not help, depending on the other issues you're having...


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#16
October 20, 2009 at 15:35:14
Well, I went to the computer store Altek. They didn't sell them, but the tech guy in the back gave me one for free! So, now I have a speaker (and I tested it, it worked giving me a ram error BUT my ram wasnt in, on purpose).

Now, I put it all back together. Lo - n - behold; the computer boots up! haha.

Well, I guess I'll run it until I get a problem ethier tonight or tomorrow.

Anyways, I have a question:

If my mother board is beeping an error (and a proper one at that), does that mean its probably fine? Or that doesn't strike that off the broken list?


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#17
October 20, 2009 at 21:21:01
"If my mother board is beeping an error (and a proper one at that), does that mean its probably fine? Or that doesn't strike that off the broken list?"

Not necessarily. Multiple problems could only be determined by correcting each one as it's reported. A beep-code will generally report only the first error it comes across in the boot process (and that sequence may vary by BIOS manufacturer). Thus you may correct one error (beep-code) only to find another (different) one next time it boots-up...


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#18
October 23, 2009 at 01:05:27
Okay, Its been a few days. These past 2-3 days the computer ran FANTASTIC. No BSOD, No Crashes, POSTING, everything fine. I get home late today, and bam, now its not posting again.

This time its REALLY not posting and REALLY providing no beeps (the speaker is still on). /sigh

Any tips/help/suggestions?


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#19
October 27, 2009 at 20:12:14
okay, so I waited a few more days, nothing happened with the comp. So I decided to remove all my ram and test it out, switching this, that, here, there... nothing worked.

Then I decided to remove one of my sli cards, and set the Mobo to run "one" and viola... it loads up. I switch cards, thinking the other is bad... nope, it loads up.

So, im guessing my PSU is going ca-put because its not putting out the juice for 2 video cards. Does anyone else agree with me? Or Disagree? Why or why not? Im thinking about ordering a new PSU.


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#20
November 11, 2009 at 20:16:20
Update:

I got a new PSU. Installed it. Still getting the same problem, No beep, No Post. Apparently a PSU without a fan for a year is still effective.

I borrowed my brother's ram, switching that out didn't do anything.

So, can anyone tell me what to check next? Mother board? CPU? Something else?

Please help. This is very frustrating.


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#21
November 14, 2009 at 22:40:37
The beep comes from a speaker connected to the mobo, not
sound card... You can adjust its volume? O.O

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#22
November 15, 2009 at 12:39:05
yeah, some motherboards use sound card spealers to do a beep, some use the on board mobo speaker. Mine had neither, so I went out and got a speaker and hooked it up to the computer. When I did i was getting beeps of ram - but i took all my ram out to test that speaker. Since then it has not beeped at all. The volume is fine, and i don't think i can adjust it.

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#23
November 15, 2009 at 13:15:18
Go back to the beginning.

First of all is this a new build or was it previously running?

If previously running did you change any hardware?

If a newly assembled rig then you should have bench tested the board with minimal hardware.

All the is needed is ONLY the following. MBoard, powersupply, CPU/HS/fan, 1 stick of COMPATIBLE RAM, onboard video or add in card, monitor, PS/2 keyboard.

No drives, external components, other case to board connections.

If you previously had the board posting and removed RAM did you do that while the computer was plugged in?

Did you exercise proper anti-static precautions before entering the case?
You start the board by temporarily shorting the two power connector pins with a flat blade screwdriver.

Non-standard RAM can cause the original symptoms. If the RAM requires more than normal voltage and you were using the default settings then the RAM may not perform properly.

Are you even sure the CPU and RAM are compatible with the board?

For additional help you need to post all the hardware specs including the power supply model, RAM, processor, video, etc.

Did you apply thermal compound correctly each time you removed the heat sink?


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#24
November 15, 2009 at 17:17:43
First of all is this a new build or was it previously running?

Previously running for a year.

If previously running did you change any hardware?

No.

If you previously had the board posting and removed RAM did you do that while the computer was plugged in?

no.

Did you exercise proper anti-static precautions before entering the case?

yes.

Are you even sure the CPU and RAM are compatible with the board?

yes, as stated before it was running for a year (and the mobo site says both are compatible.)

Did you apply thermal compound correctly each time you removed the heat sink?

yes.

For additional help you need to post all the hardware specs including the power supply model, RAM, processor, video, etc.

Im sorry, I guess you missed it in my original post, - at the bottom - I listed a very detailed explanation of what pieces are what.

The only piece thats NOT listed is my new PSU, because well I have replaced that since the original post. My new PSU is:

OCZ / GameXStream / 850-Watt / ATX / 120mm Fan / SATA-Ready / SLI-Ready / Active PFC / Power Supply

Today I took our all my ram and put them in the A1 spot, one ram at a time. I even tried them in B1 slot and random other spots as well. Individually I mean trying 1 ram at a time.

Also, I took out all my ram, video cards, and unhooked all my extra stuff (HD, CD-Rom, etc,) I only had PSU, CPU, and MOBO. Still no beep/no post. I looked into replacing the MOBO or CPU with the same, it seems the Q6600 still costs alot where as the mobo is very hard to even find. :(

This is hardware failure, and im getting to the point where im about to take it to some random computer shop for diagnostic.


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#25
November 15, 2009 at 19:13:48
Pull the board and test out of the case.

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#26
November 15, 2009 at 22:50:39
Im sorry, how do I test a case? And what am I testing for?

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#27
November 16, 2009 at 08:57:01
Test the board when lying on cardboard. Not mounted in the case.

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#28
November 18, 2009 at 16:15:51
okay, so i know it wasnt the board attached wrong, because i had it professionally done. Not only that it worked good for about a 1 and 1/2.

Anyways, so I got fed up and took it to some computer store for diagnostic. They tested out everthing and came to the conclusion its the MoBo.

So, I plan on ordering the mobo in the next 2-3 days and trying it out. I will let you all know if thats what it was.


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#29
November 18, 2009 at 16:19:58
Sometimes a metal standoff can be placed in the wrong place and not cause a problem right away. So the board could work until vibration or whatever causes the errant standoff to short out. Standoffs should ONLY be under screw holes.

I have also seen dropped screws find thier way behind the board.

Installing or removing hardware can also flex the board.


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#30
November 29, 2009 at 12:53:03
Well... I have installed a new Mobo. But in the process I broke my CPU fan plastic piece of crap that holds it to the Mobo. (those things are cheap as hell). In doing so, my computer was shutting down in about 30 seconds (over heating because the fan wouldnt stay on properly).

Anyways, so I went out and bought a new CPU fan.

Now my computer is running fine. Im installing the new mobo drivers/etc. Making sure everything is working with it.

So, thank you all for your help. If you don't see me respond back you know it was just the Mobo. Thanks.


**EDIT*** Why can't I edit my original post? It will let me edit all my other posts, but not the original. I just want to put the answer on the first post for other people who may come across this. Oh well...


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