I'm now trying to get this computer to work. For the most part
everything seems to work fine except that there is a continuous two
tone siren coming from the Abit AI7 motherboard that starts as soon as
I power on.
After some googling I found that "A two-tone siren, generally caused by overheating or out of specification voltages". I have a general understanding of what this means but not sure what to do.
Currently the symptoms I'm experiencing are (that I am aware of are)
1. two tone siren
2. CPU overheating up to 80C or higher if I dont shut down, and thats just sitting in bios page, not even booted into any OS.
At this point I should mention that visually all the fans (cpu, psu,
northbridge, large case fan, and video card fan) appear to be running
normally and that I've already tried resetting the BIOS to its factory
fail safe defaults. I've also removed the RAM and tried different
sticks in different slots.
I googled pretty heavily to find problems similar to mine but with no
success, I'm not very experinced in trouble shooting hardware and I've
never built a computer before so Im kind of stuck here.
My guess is that the CPU is over clocked through jumpers on the
motherboard but I'm not sure how to change those. Also the link to my
motherboard's manual on the Abit site is broken (lucky me)
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There should be some sort of beeps then. No beeps is an indication the CPU or RAM is not seated properly. You need to refer to board manual if there are beeps. There is also the matter of... Never mind I just noticed the CPU is an 8 core CPU, but the board supports quad core. Board specs http://www.gigabyte.com/products/product-page.aspx?pid=3833#sp
Although the cpu fan may be working, the alarms are set to a temperature setting, so if the heat-sink that the fan is mounted gets clogged with dust ,dirt hair etc.. the processor temp rises and the alarm goes off. And in some cases if the user doesn't shut it down within a certain time period it is shut down automatically. When you boot it up, the temp might be rising to that setting faster than the operting system can load. Try a vac to clean it / or compressed air to blow it out
The voltage is normal, it's a 3 volt battery.
The low tone is usually generated by a faulty memory. How to test that (i'm assuming that the monitor is working and correctly attached): first remove the memory modules, clean their connectors and try to start again; next remove all attached hard disks and optical units and try to start it again. If it's the same (you can't enter BIOS) then use another power source and try again. Finally try it by using another memory. If even then the problem is still there then the problem is in the motherboard - replace it.
If all the parts of your computers are fined functioning. This is a CPU problem witch is no display. Try to disassemble the CPU remove the heat sink the CPU and clean and insert it again. When you are now inserting the CPU be sure that you will put a thermal past in the heat sink so that the heat from the CPU are absorbed. If the heat will not be absorbed it will cause overheating.
It seems like you have bad MOBO. I recently ordered all the stuff to build 2 new systems. Built the first one, no power, just like yours. Moved everything to the 2nd MOBO, everything worked. I did a RMA on the DOA MOBO. Got the new one and it fired right up. Sometimes you just get bad stuff.
The sound you are hearing is a warning that the CPU is over heating.
Try cleaning the CPU fan & the heatsink the fan is connected too.
If you built the system did you add thermal grease between the heatsink & CPU?
It is also possible the thermal grease has dried up & is no longer allowing the heat from the CPU to transfer to the heatsink. It may be time to replace the heatsink assembly.
If your over clocking the CPU reset it to normal.
remove all hardware except RAM n CPU and then try it if the system gives you a disply then add all hardware 1 by 1 and keep checkin this way you can find the problem with the harware compatibility if the system wont disply then check the mobo for RAMs and CPU respectively if the problem presists then you have the BAD BOARD.-
Dual-tone siren meaning - hardware monitoring signalyzed that some problems with mobo, to ex.: - any Voltage (CPU, RAM, chipset etc) is bad - any Temperature (from any sensor) is bad - frequency of cooler is bad (or not connected)