Three days ago my computer froze-up while *online*.
[NOTE: the reason I went online (with a browser) is because I had been attempting to download a video off my cell phone onto the computer via a USB port on top of the CPU case. When I plugged the phone in, a window appeared asking if I wanted to run some program (can’t recall the name of the program). After locating my cell phone’s users manual online, I realized I had to change the USB mode on it from “Modem Mode” to “Media Sync Mode” and that’s when the computer froze up (no mouse, no keyboard). I don’t recall whether the phone was plugged it at the time].
I forced a shutdown (by holding down the “on” button). When I turned it back on here’s what I got:
- Green light on mother board came on
- All fans began running
- Got 4 quick beeps (normal)
- No monitor (just black screen)
- Approx. 5 seconds later got (endless) repeating message: “System failed CPU test”.
Multiply attempts to boot have produced the same results.
I purchased this computer approx. 4 (+) years ago from a friend (who’s no longer here) who had built it himself. It has 4 RAM slots (each slot has 512M of PC3200). I know the MoBo is “Asus”. I have not installed any new programs or hardware recently (aside from plugging my cell phone into a USB). It currently has Vista Ultimate as the OS.
The hard drive consists of 5 separate SCSI drives all linked together to create one directory (my “C” drive). I believe it’s called a RAID array.
The video card has 256M onboard memory and its own separate fan (which also comes on when I turn the computer on).
I’ve been checking online for possible solutions, and have seen a few forum posts from people experiencing the same repeating message (System failed CPU test), but those posts are able to boot-up; I cannot.
Things I’ve tried so far:
- Removed two sticks of ram from left side and attempted to boot, then repeated the exercise with the other two ram sticks.
- Thinking perhaps my cell phone shorted out the USB port, I unplugged the USB ports (on top of case).
I did read something about resetting the CMOS, but am concerned my friend might have customized the BIOS to accommodate the RAID array, and if I were to reset it back to factory conditions, I might lose any customization he had done…?
Also, I’m hoping that an accurate diagnosis might be made (based on the listed symptoms) by someone with a better understanding of computers than I have (eg: am I correct in assuming that because the fans all come on that the power supply is not the cause?).
Any suggestions greatly appreciated!