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Posted 06 August 2011 - 11:22 PM
Posted 07 August 2011 - 03:27 AM
Edited by HiroPro, 07 August 2011 - 03:31 AM.
Posted 07 August 2011 - 11:47 AM
Hello, and thank you for your response. When I do boot-up the computer, I did not hear any beeps sounds. Also, my video card was running at and extremely high speed. When I did turn on the computer, the monitor was blinking "No Signal". So, I changed to the onboard video, but I still got "No Signal" on my monitor. My RAM is not too old, but not too new, as it is only 5 month old. My computer was very quiet, but since the video card was running at super high speed, it was extremely loud.
If you receive/hear no beep codes then it's "no video" and probably as in likely 70% dead RAM, 20% dead motherboard and 10% dead CPU. In other words it's your RAM that has failed. Understand that if you have TOTAL RAM FAILURE as in not just some of the BGAs but the first few in address space that the BIOS code can't load and even do beep codes. This results in a machine that will power on but nothing happens and no video signal is sent and no BIOS can even load to run diagnostics. This is why it's called "no video" as this is what end users report. Try with different memory modules making sure they are the same type, timings and spec as you had initially. You might also have to do a BIOS reset after installing new ram if you had custom timing in BIOS etc.
Posted 07 August 2011 - 02:41 PM
Edited by HiroPro, 07 August 2011 - 09:57 PM.
Posted 07 August 2011 - 05:40 PM
Thank you once again for your help. Since, I believe you are an experienced PC mechanic, I shall go buy myself a new RAM. Hopefully it'll fix the problem. Thank you. I'll report back if there is any change.
The reason the video card fan is spinning so fast is due to video card firmware/microcode. Understand that when it powers on it communicates with the motherboard BIOS. When it does this on certain video cards for that instant the video card fan cranks it's self. After it's POSTed with the motherboard the firmware/microcode in the video card then throttles down the fan. If it hangs at that moment as it's doing now with your toast memory then it will stay stuck with the fan cranked.... GET IT !?!
PS brother you're talking with a PC builder with 30+ years of experience. I built my first PC in the mid to late 80s at the age of 13... it's probably your RAM.
Posted 07 August 2011 - 07:19 PM
Posted 07 August 2011 - 09:39 PM
Edited by HiroPro, 07 August 2011 - 10:52 PM.
Posted 07 August 2011 - 10:00 PM
I have reset the CMOS using both methods, but the computer still doesn't not work. Should I replace the motherboard completely?
Sorry to hear that. Before you give up on it being the RAM make sure you reset the BIOS by removing the coin battery and also jumping the clear CMOS header. If it's still screwy then it could be one of three more things. CPU, motherboard component failure or corrupt/failed BIOS EEPROM. I have also seen failed harddrives cause that "no video" hang though this is very rare.
Remove all expansion cards and SATA connections reset BIOS and use one memory stick see if it POSTs. Then swap each memory module to see if it behaves the same. If it still does then I'd put my money on it being a dead BIOS EEPROM. If it's socketed you can order one with BIOS flashed into it from the motherboard manufacturer.
CPUs can also fail but this is usual due to the user not mounting the heatsink properly and/or cranking the voltage to high on the processor for an overclock. Sometimes CPU's PCB package and pin grid isn't totally flat. What happens then is as the ZIF lever crunches down on the pins some of the pins are poking out farther than the rest (were talking a mm or less here) and thus the CPU package is raised. What happens next is when you attach the heatsink it's putting many pounds of pressure down on the pin grid. If you look at a ZIP socket you will notice raised bumps between the pins that touch the pin grid array package/PCB. This helps to support the CPU package from heatsink pressure. What I always do is place a finger or thumb down on the top cpu slug and press with light to moderate pressure before and as I lock the lever down. Good tips to prevent CPU failure IMHO if this is your case. At this point though it's probably BIOS EEPROM failure.
Posted 07 August 2011 - 10:32 PM
Edited by HiroPro, 08 August 2011 - 03:19 PM.
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