Tech Support Forum - View Single Post - A7N8X-E deluxe won't boot, saying "system failed due to cpu overclocking"

kreon3 · 05-04-2005, 03:15 PM

Okay, I really need some help on this one, because I have no idea what's left to do. So here's the situation. I am using a ASUS A7N8X-E Deluxe motherboard. I had my computer working perfectly for about 8 months. One morning it stopped began blue-screening when trying to boot xp, reinstall xp, or die in another way when trying to install linux. I thought it might be the RAM, so I ran memtest86 and found about 10 errors in two of about ten full runs during the random memory test, so extremely rare. Later, I tried disabling the L1 and L2 caches and the computer booted stable, other than the fact that it was incredibly slow because the caches were disabled. I assumed that it was a problem with the mobo due to the caches, so I RMAed it to ASUS. ASUS returned my mobo saying that there were no problems with it.

I reinstalled the mobo and now things are worst. Now whenever I try to start in any method, winxp, memtest86, msdos, bios, the computer shuts down after between 20 seconds to 2 minutes. When I save and exit the BIOS the computer shuts down in the same way immediately when it begins to restart(before the monitor gets a signal). Also the cpu is being detected as an AMD 1150 mHz(this is due to it reverting to safe mode settings of FSB 100mHz and multiplier of 11.5), if I try to increase these any, the computer just immediately shuts down when restarted. It is also not a clean shut down, the power supply, fans and other accessories turn off, but the power light stays on, and I am not able to turn the computer back on unless I turn off the power supply and turn it back on. The original power supply had slightly low voltages on the 5v line(like 4.94v), and it wasn't a very powerful supply, so I got a new psu, but this didn't change anything except make the voltages slightly better. But I'm not really sure what to do now I've tried a variety of things, mostly individually.

The System
ASUS A7N8X-E Deluxe motherboard
Athlon XP 3000+(has Arctic silver, heatsink and fan)
2x Kingston ValueRAM 512mb 333
Chaintech GeforceFX 5900
Aspire 550W psu(old psu RaidMax 300W)
Seagate 160 GB SATA hard drive
IBM Floppy Drive
Some CDR/DVD drive

What I've Tried
Moving RAM around, 1 DIMM only, or 2 DIMMs - No affect other than decreasing to 1 DIMM makesx total 512 in checks
Changing FSB, 200mHz, 166mHz, 133mHz, 100mHz - System instantly shuts off instantly on restart when set to anything but 100mHz
Decreased cpu multiplier - changed the mobo interpretation of processor from 1150mHz to other lessor values
Increased cpu multiplier - System instantly shuts off on restart
Connect cpu fan to different power - No affect (it supposedly solved someones troubles when faced with a similar problem)
Disconnecting all components except for Hard drive, video card, and processor - No affect other than devices that are disconnected are no longer detected
Move about power cables, unplug all, replug all - No affect
Cleared CMOS memory - reset bios
Attempted to flash bios - was not able to flash bios because MSDOS would not detect my SATA hard drive, and the system was to unstable, so I didn't want to mess up the Bios chip by having it shut down during the flashing

I think that's about it for things I've tried

Also, The CPU temperature is stable at ~45 celsius

So, yeah, I'm stumped. Any advice would definately be enjoyed.

05-04-2005, 03:15 PM	#1 (permalink)
kreon3 Registered User Join Date: May 2005 Posts: 3 OS: WinXP	A7N8X-E deluxe won't boot, saying "system failed due to cpu overclocking" Okay, I really need some help on this one, because I have no idea what's left to do. So here's the situation. I am using a ASUS A7N8X-E Deluxe motherboard. I had my computer working perfectly for about 8 months. One morning it stopped began blue-screening when trying to boot xp, reinstall xp, or die in another way when trying to install linux. I thought it might be the RAM, so I ran memtest86 and found about 10 errors in two of about ten full runs during the random memory test, so extremely rare. Later, I tried disabling the L1 and L2 caches and the computer booted stable, other than the fact that it was incredibly slow because the caches were disabled. I assumed that it was a problem with the mobo due to the caches, so I RMAed it to ASUS. ASUS returned my mobo saying that there were no problems with it. I reinstalled the mobo and now things are worst. Now whenever I try to start in any method, winxp, memtest86, msdos, bios, the computer shuts down after between 20 seconds to 2 minutes. When I save and exit the BIOS the computer shuts down in the same way immediately when it begins to restart(before the monitor gets a signal). Also the cpu is being detected as an AMD 1150 mHz(this is due to it reverting to safe mode settings of FSB 100mHz and multiplier of 11.5), if I try to increase these any, the computer just immediately shuts down when restarted. It is also not a clean shut down, the power supply, fans and other accessories turn off, but the power light stays on, and I am not able to turn the computer back on unless I turn off the power supply and turn it back on. The original power supply had slightly low voltages on the 5v line(like 4.94v), and it wasn't a very powerful supply, so I got a new psu, but this didn't change anything except make the voltages slightly better. But I'm not really sure what to do now I've tried a variety of things, mostly individually. The System ASUS A7N8X-E Deluxe motherboard Athlon XP 3000+(has Arctic silver, heatsink and fan) 2x Kingston ValueRAM 512mb 333 Chaintech GeforceFX 5900 Aspire 550W psu(old psu RaidMax 300W) Seagate 160 GB SATA hard drive IBM Floppy Drive Some CDR/DVD drive What I've Tried Moving RAM around, 1 DIMM only, or 2 DIMMs - No affect other than decreasing to 1 DIMM makesx total 512 in checks Changing FSB, 200mHz, 166mHz, 133mHz, 100mHz - System instantly shuts off instantly on restart when set to anything but 100mHz Decreased cpu multiplier - changed the mobo interpretation of processor from 1150mHz to other lessor values Increased cpu multiplier - System instantly shuts off on restart Connect cpu fan to different power - No affect (it supposedly solved someones troubles when faced with a similar problem) Disconnecting all components except for Hard drive, video card, and processor - No affect other than devices that are disconnected are no longer detected Move about power cables, unplug all, replug all - No affect Cleared CMOS memory - reset bios Attempted to flash bios - was not able to flash bios because MSDOS would not detect my SATA hard drive, and the system was to unstable, so I didn't want to mess up the Bios chip by having it shut down during the flashing I think that's about it for things I've tried Also, The CPU temperature is stable at ~45 celsius So, yeah, I'm stumped. Any advice would definately be enjoyed.