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Discussion Starter #1
My a8n-sli premium has an annoying habit, when i press the power button it all come's on as normal then i get two long beeps and the system powers itself off, then i push the power button again and it's all fine and works like normal. This only happens at random but seems like it's becoming more common. Please help!
 

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Those "Beeper" codes are signs of trouble. Most systems give one short beep when it successfully POSTS will all things in the green. There should have been a small portion of your MoBo User's Guide that should cover those beep codes and what they mean.

It concerns me that your system is doin it more and more often, that is a sign that what ever is wrong is getting well...more wrong. Something may be dying. I suggest you STOP using your system now and start your troubleshoot.

#1Get the manual out and read thru, lookin for the beep codes. They will most likely be listed in the POST/BIOS section of the manual.

#2 Start righting down your observations of the beep events. Log when they happen and what you were doing. Log, what program you were using, the time of day,the day of week everythin you can think of to look for a pattern.

3#Start testing your parts. One at a time til you find a bad part or parts.
This may be a pain if you dont have another "working" PC to test your parts in, I suggest do what I have been doing, collect old systems just for trouble shoot abilities. I have boards that take PC100 RAM and boards that take stuff like Rambus600, it's nice to be able to test a wide range of components.

4#If you get stumped come back here and be thorough in your description of your issue. You can NEVER give too much detail.

5#Good luck.
 

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Discussion Starter #3
Right it only ever happens when the system has been off for a period of time, say from morning till i get in from work in evening, the system works fine other than this issue.

I have all brand new parts and a friend with an identical system and he has the same issue as me.

The system is

Asus A8N-SLI Premium Mobo
Tagan 580W PSU
Athlon64 4000+ @ 2700mhz
1Gb Dual Channel Kingston HyperX 550mhz Ram
MSI 6800GT PCI-X graphics
2 x SATA2 80Gb HDD in RAID 0 as boot volume
2 x SATA2 160Gb HDD in RAID 0 as data storage
both arrays run from the NVIDIA raid on the mobo
2 x Pioneer 108 DVD Writers on Primary IDE

Thats the main spec and bar a SCSI card for a slide scanner there are no other cards in the system. I regularly run latest games and photoshop, dreamweaver etc and the system is faultless in every way.

There are no heat issues as i am running a Thermalright XP-120 cooler with Panaflo 120mm fan and 80mm fans on both sets of HDD's and one additional 80mm in the back of my Chieftec Full Tower case.

If memory serves me correctly none of the parts are more than 1 to 1 1/2 months old. I have checked all parts with diagnostic tools as i own my own computer shop, so have tested all parts and they come back as being fine.

I find it odd that my friend has the same issue with an identical machine, has anyone else experienced this or have any ideas? Many Thanks.
 

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Discussion Starter #5
appreciate the link but none of the codes are relevant, will try and check the onboard post code when it beeps, but don't you think it's strange that it powers off itself, most bios issues with beeps etc just beep and you have to turn system off yourself.
 

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OmegaDawn
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It may be that the CPU fan is not coming up to speed as fast as it should,
or the onboad sensor for the fan is not working properly.
You may be able to disable fan speed shut down in the BIOS.
But make sure the fan is working OK.
 

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Welcome to the Forum:

I strongly suggest you check the documentation for your power supply to see how many amps both 12V rails put out / then compare all system specs against this one
http://cgi.ebay.com/ENERMAX-EG701AX...795972803QQcategoryZ44949QQrdZ1QQcmdZViewItem

if I rember correctly; you board takes 16amps to fire up / add 20% -30% of the required voltage to achieve stability and you will find you need a PSU with at least 19 amps or better on the 12V rails ????? Does your present PSU deliver that ????? There is alot more to evaluating PSU's other than wattage !!!!!!!! Note the PSU above puts out 20 amps on both 12V rails << thats SLI ready

download this utility and check your system voltages / post them for evaluation as other tech's will pop intot his thread also!
http://www.lavalys.com/products/overview.php?pid=1&lang=en


dont hesitate to ask more questions


regards

joe
 

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Discussion Starter #8
Hi, have checked the spec of the Power supply and it runs 20amp on each rail or 35amp in combined mode which is how i am running it, it is also SLI ready and i am nowhere near using all the connections the supply has to offer and whilst i appreciate this doesn't mean i am not using the full load i would be very suprised if it isn't offering enough juice.
 

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Discussion Starter #9
Here's the report result from your link

Sensor Properties:
Sensor Type ITE IT8712F (ISA 290h)
GPU Sensor Type Maxim MAX6646 (NV-I2C 4Ch)
Motherboard Name Asus A8N-E / A8N-SLI Series

Temperatures:
Motherboard 39 °C (102 °F)
CPU 34 °C (93 °F)
GPU 47 °C (117 °F)
GPU Ambient 39 °C (102 °F)

Cooling Fans:
Chipset 2860 RPM

Voltage Values:
CPU Core 1.49 V
+3.3 V 3.36 V
+5 V 4.97 V
+12 V 11.97 V
+5 V Standby 4.95 V
VBAT Battery 3.09 V
Debug Info F FF FF 3B
Debug Info T 34 39 27
Debug Info V 5D 00 D2 B9 BB BB 00 (F7)
 

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Discussion Starter #11
and how does that make the system beep on startup? i am sure the cpu temp is only so low due to the thermalright cooler i am using if i was using a stock cpu cooler i am sure my cpu temp would higher than the mobo. I can't get the mobo temp any lower as it doesn't use a fan for the premium board it is run by heatpipe. plus 39 celcius is the temp after the system has been running for a number of hours, when i first turn the board on both cpu and mobo temp would be lower.

So anyone got any other suggestions as to the beeping problem i have??

Many Thanks
 

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i was just curious about the temps,the beeps tell you exactly what is wrong see if there are any asus beeps listed in your manual that you can match them to
 

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try your system with one stick of memory

or run memtest86.com run it for several hours

Dont be so fast to overlook the discrepancy of the heat readings !! those temp readings mean something is ascue / the mobo being hotter than the CPU is very unusual !! Generally all systems run a couple of degrees cooler than the CPU and its not just the heatsink and fan a doing a great job !! or the system would STILL be cooler than the cpu

something is stressing the board but the cpu is not the culprit / and it doesnt appear to be the power supply / I would check the memory
how about a spare video card ?????????



regards

joe
 

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Discussion Starter #14
Hi i have checked the beeps with Asus and nothing relates to what i have.

As for the temps, there is nothing wrong with running 39 deg on the mobo i expect this to be hotter due to the overclock and the fact it is heat pipe cooled instead of air cooled, when i originally ran the stock/retail A64 cooler the board temps were the same as they are now with no probs, i doubt it is the memory as again i use a lot of games and programs such as photoshop and dreamweaver which all use a lot of the memory and i experience NO other system probs apart from this beep at the start. I will as always try your suggestions but still see something else as causing the problem.

thanks
 

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Discussion Starter #15
no joy with the above but strangely the issue hasn't happened for a while now and i haven't changed anything, so thats weird?
 
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