I recently had a wonderful computer built and now it won't boot. Here's the specs. Core 2Duo 2.4, 2GB ram DDR2, 680watt psu 3 fans: 120, & 2X 80,OS:XP, and I have an onboard video card that's always been somwewhat flaky. I've turned up fsb to have cpu @2.9. System passed numerous sdtress tests. I just tried to install 4Gb of ram and the system made a flatline sound. I was told to put the old ram back in then turn down ram spd below default of 800. I can't the system won't boot. Normally during tbooting the system will beep; there's no beep, and no picture. What can I do?
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In general I would never recommend to upgrade a fixed (mass production or brand built) PC. Also with these specs if your are trying to make a gaming PC out of it you are going to be disappointed. Never the less if you still want this I can only suggest to go for the bigger PSU like GS800 so the GPU could work a bit better plus a set of ram for a total of 8.
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
There are several reason why a computer won't boot up. First you need to figure out if your Power Supply is working, if your not a computer expert, you can try another PSU to test. Or you can use a PSU tester to test if your PSU is still working. If not, clean and reseat your RAM, if you have 2 RAMs, remove each RAM then try 1 RAM at a time, and try to seat the RAM to different slot. If not luck, clean and reseat your graphics card. If you have a built-in video port, remove your graphics card. Still won't boot? try resetting the CMOS. This might fix the problem.
Here are the rates of what they are selling average used
INTEL CORE 2DUO
depends on type- ddr2 would day around $30
320 gb hdd again depends on type- SATA around $40
dvd burner $20
keyboard mouse combo $20
20" monitor 75
Well depending on your bios version, it could be an array of things.
First try removing the video card and re-seating it.
Then re-seat the RAM.
If the problem persists re-seat the CPU.
Let us know the exact model of your motherboard so we can better troubleshoot your problem.
When you turn on your computer the system does a POST (Power On Self Test). If the POST sees an eror it will tell the BIOS (Basic Input Output System) and the BIOS will beep a code or display a code that indicated the problem.
Different motherboards contain different BIOS versions. BIOSes use different beep codes for problems depending on the manufacturer.
You should only hear 1 beep. That 1 beep is power on self test, known as P.O.S.T. That loud flat line sound (And I'm pretty sure about this), was you're CPU. Just because you ran & passed the stressed test is nothing compared to running the system under load? That's why when you put in you other memory nothing changed. If you hadn’t mentioned you clocked up the FSB I would have come to the same conclusion hearing the loud flat line statement. Can you test the CPU in another board? That is about the only way to be sure it's not the CPU. Memory does not make that kind of sound. Memory makes short & long beeps. You can try clearing the cmos/bios by going to pg. 2-18 in you're user manual. This will reset the bios back to default settings & cross you're fingers!
If I can be of more service, just post back & let me know how thing go.