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BIOS Setup Hangs
I'm trying to run a Supermicro P6SBM motherboard with a Pentium III 500 MHz
processor, but when I enter the BIOS setup the system hangs if I'm in there for too long. Other symptoms: At boot the system will intermittently hang during the memory test. No beeps. It just stops and must be power cycled. I've tried other DIMMS with the same result. If I bypass the memory tests the system will hang while booting Windows 98. The same thing happens if I boot to DOS from a floppy. It gets to the DOS prompt and everything seems fine, but then after about 30 seconds it hangs and must be power cycled. The processor has an FSB of 100 MHz, but if the motherboard is jumpered to run at 100 MHz it will hang quicker than if it is jumpered to run at 66 MHz. The memory is rated at PC100, so I don't believe it to be the problem. I've also tried another Pentium III processor and get the same results. Before I trash this motherboard I would like to see if anyone has had any experience with this hardware and can maybe give me some advice. |
#2
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Spleeph stumbled out of the bar and spewed:
I'm trying to run a Supermicro P6SBM motherboard with a Pentium III 500 MHz processor, but when I enter the BIOS setup the system hangs if I'm in there for too long. Other symptoms: At boot the system will intermittently hang during the memory test. No beeps. It just stops and must be power cycled. I've tried other DIMMS with the same result. If I bypass the memory tests the system will hang while booting Windows 98. The same thing happens if I boot to DOS from a floppy. It gets to the DOS prompt and everything seems fine, but then after about 30 seconds it hangs and must be power cycled. The processor has an FSB of 100 MHz, but if the motherboard is jumpered to run at 100 MHz it will hang quicker than if it is jumpered to run at 66 MHz. The memory is rated at PC100, so I don't believe it to be the problem. I've also tried another Pentium III processor and get the same results. Before I trash this motherboard I would like to see if anyone has had any experience with this hardware and can maybe give me some advice. I solved my own problem. After reading some of the posts in this group I decided to check the CPU heat sink and found that I wasn't installing it properly. After a few adjustments the system comes up fine. I had a feeling the problem was something stupid, only I didn't count on that something stupid being me. D'oh! |
#3
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"Spleeph" said in :
I'm trying to run a Supermicro P6SBM motherboard with a Pentium III 500 MHz processor, but when I enter the BIOS setup the system hangs if I'm in there for too long. =20 Other symptoms: =20 At boot the system will intermittently hang during the memory test. No beeps. It just stops and must be power cycled. I've tried other DIMMS with the same result. If I bypass the memory tests the system will hang while booting Windows 98. The same thing happens if I boot to DOS from a floppy. It gets to the DOS prompt and everything seems fine, but then after about 30 seconds it hangs and must be power cycled.=20 =20 The processor has an FSB of 100 MHz, but if the motherboard is jumpered to run at 100 MHz it will hang quicker than if it is jumpered to run at 66 MHz. The memory is rated at PC100, so I don't believe it to be the problem. I've also tried another Pentium III processor and get the same results.=20 =20 Before I trash this motherboard I would like to see if anyone has had any experience with this hardware and can maybe give me some advice. Could be a memory problem (you can get memtest86 to test it) but it = almost sounds like you have a temperature problem in that once the power = is up then something heats up until it fails. Have you checked the fans are spinning (CPU, video, northbridge)? = Sometimes even the case fan not spinning with cause a shutdown if it is = sensored and not spinning. Have you checked the heatsink hasn't come = off the CPU? Neaten up the innards by repositioning ribbon cables to be = out of the way of the airflow or inline with it instead of blocking it. = Make sure they don't block airflow over the CPU or memory. If there is = a fan on the video card, don't abut it against another card in the = adjacent slot, if possible (i.e., leave the PCI slot open next to the = video card). Unplug the hard drives to see if you can then boot and keep it running. = If so, run memtest86. Could be you are too close to the max power that = your power supply can deliver. Some good power supplies can actually = deliver more than their rated power (visit www.tomshardware.com to see = articles; Antec, Enermax, Fortron, and a couple others are good). Many, = however, are generic wannabe power supplies that both inflate how much = power they can provide and also lie in totalling up the individual = currents without noting that some voltages are tied together and will = limit each other (i.e., you get less total amps across the two = voltages). By removing the hard drives, maybe you can reduce the = current load so the power supply is still within its real operating = range and the system will stay up by booting using a floppy or just = entering and sitting in BIOS. --=20 __________________________________________________ ____________________ Post replies to newsgroup. Share with others. E-mail not accepted. __________________________________________________ ____________________ |
#4
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"Spleeph" said in :
Spleeph stumbled out of the bar and spewed: I'm trying to run a Supermicro P6SBM motherboard with a Pentium III 500 MHz processor, but when I enter the BIOS setup the system hangs if I'm in there for too long. =20 Other symptoms: =20 At boot the system will intermittently hang during the memory test. No beeps. It just stops and must be power cycled. I've tried other DIMMS with the same result. If I bypass the memory tests the system will hang while booting Windows 98. The same thing happens if I boot to DOS from a floppy. It gets to the DOS prompt and everything seems fine, but then after about 30 seconds it hangs and must be power cycled. =20 The processor has an FSB of 100 MHz, but if the motherboard is jumpered to run at 100 MHz it will hang quicker than if it is jumpered to run at 66 MHz. The memory is rated at PC100, so I don't believe it to be the problem. I've also tried another Pentium III processor and get the same results. =20 Before I trash this motherboard I would like to see if anyone has had any experience with this hardware and can maybe give me some advice. =20 I solved my own problem. After reading some of the posts in this group I decided to check the CPU heat sink and found that I wasn't installing it properly. After a few adjustments the system comes up fine. I had a feeling the problem was something stupid, only I didn't count on that something stupid being me. D'oh! Oh, well, then ignore my other reply post. --=20 __________________________________________________ ____________________ Post replies to newsgroup. Share with others. E-mail not accepted. __________________________________________________ ____________________ |
#5
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*Vanguard* stumbled out of
the bar and spewed: "Spleeph" said in : I'm trying to run a Supermicro P6SBM motherboard with a Pentium III 500 MHz processor, but when I enter the BIOS setup the system hangs if I'm in there for too long. Other symptoms: At boot the system will intermittently hang during the memory test. No beeps. It just stops and must be power cycled. I've tried other DIMMS with the same result. If I bypass the memory tests the system will hang while booting Windows 98. The same thing happens if I boot to DOS from a floppy. It gets to the DOS prompt and everything seems fine, but then after about 30 seconds it hangs and must be power cycled. The processor has an FSB of 100 MHz, but if the motherboard is jumpered to run at 100 MHz it will hang quicker than if it is jumpered to run at 66 MHz. The memory is rated at PC100, so I don't believe it to be the problem. I've also tried another Pentium III processor and get the same results. Before I trash this motherboard I would like to see if anyone has had any experience with this hardware and can maybe give me some advice. Could be a memory problem (you can get memtest86 to test it) but it almost sounds like you have a temperature problem in that once the power is up then something heats up until it fails. Have you checked the fans are spinning (CPU, video, northbridge)? Sometimes even the case fan not spinning with cause a shutdown if it is sensored and not spinning. Have you checked the heatsink hasn't come off the CPU? Neaten up the innards by repositioning ribbon cables to be out of the way of the airflow or inline with it instead of blocking it. Make sure they don't block airflow over the CPU or memory. If there is a fan on the video card, don't abut it against another card in the adjacent slot, if possible (i.e., leave the PCI slot open next to the video card). Unplug the hard drives to see if you can then boot and keep it running. If so, run memtest86. Could be you are too close to the max power that your power supply can deliver. Some good power supplies can actually deliver more than their rated power (visit www.tomshardware.com to see articles; Antec, Enermax, Fortron, and a couple others are good). Many, however, are generic wannabe power supplies that both inflate how much power they can provide and also lie in totalling up the individual currents without noting that some voltages are tied together and will limit each other (i.e., you get less total amps across the two voltages). By removing the hard drives, maybe you can reduce the current load so the power supply is still within its real operating range and the system will stay up by booting using a floppy or just entering and sitting in BIOS. Thanks for the effort *Vanguard*. That's great advice. As you already know I've solved the problem. It turns out I wasn't attaching the heat sink to the CPUs tight enough. I'm just glad that the Pentium III shuts itself down instead of frying. Perhaps you can help me with this problem: It's a Soyo SY-6IBM motherboard. When turned on it makes clicking sounds like a key is stuck on the keyboard. The boot process is halted and the message on the screen is "Keyboard error or keyboard not present." The clicking continues. No lights are lit and they don't flash on the keyboard in the boot process. It's a known good keyboard. |
#6
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"Spleeph" said in :
*Vanguard* stumbled out of the bar and spewed: "Spleeph" said in : I'm trying to run a Supermicro P6SBM motherboard with a Pentium III 500 MHz processor, but when I enter the BIOS setup the system hangs if I'm in there for too long. =20 Other symptoms: =20 At boot the system will intermittently hang during the memory test. No beeps. It just stops and must be power cycled. I've tried other DIMMS with the same result. If I bypass the memory tests the system will hang while booting Windows 98. The same thing happens if I boot to DOS from a floppy. It gets to the DOS prompt and everything seems fine, but then after about 30 seconds it hangs and must be power cycled. =20 The processor has an FSB of 100 MHz, but if the motherboard is jumpered to run at 100 MHz it will hang quicker than if it is jumpered to run at 66 MHz. The memory is rated at PC100, so I don't believe it to be the problem. I've also tried another Pentium III processor and get the same results. =20 Before I trash this motherboard I would like to see if anyone has had any experience with this hardware and can maybe give me some advice.=20 =20 Could be a memory problem (you can get memtest86 to test it) but it almost sounds like you have a temperature problem in that once the power is up then something heats up until it fails. =20 Have you checked the fans are spinning (CPU, video, northbridge)? Sometimes even the case fan not spinning with cause a shutdown if it is sensored and not spinning. Have you checked the heatsink hasn't come off the CPU? Neaten up the innards by repositioning ribbon cables to be out of the way of the airflow or inline with it instead of blocking it. Make sure they don't block airflow over the CPU or memory. If there is a fan on the video card, don't abut it against another card in the adjacent slot, if possible (i.e., leave the PCI slot open next to the video card). =20 Unplug the hard drives to see if you can then boot and keep it running. If so, run memtest86. Could be you are too close to the max power that your power supply can deliver. Some good power supplies can actually deliver more than their rated power (visit www.tomshardware.com to see articles; Antec, Enermax, Fortron, and a couple others are good). Many, however, are generic wannabe power supplies that both inflate how much power they can provide and also lie in totalling up the individual currents without noting that some voltages are tied together and will limit each other (i.e., you get less total amps across the two voltages). By removing the hard drives, maybe you can reduce the current load so the power supply is still within its real operating range and the system will stay up by booting using a floppy or just entering and sitting in BIOS. =20 Thanks for the effort *Vanguard*. That's great advice. As you already know I've solved the problem. It turns out I wasn't attaching the heat sink to the CPUs tight enough. I'm just glad that the Pentium III shuts itself down instead of frying. =20 Perhaps you can help me with this problem: =20 It's a Soyo SY-6IBM motherboard. When turned on it makes clicking sounds like a key is stuck on the keyboard. The boot process is halted and the message on the screen is "Keyboard error or keyboard not present." The clicking continues. No lights are lit and they don't flash on the keyboard in the boot process. It's a known good keyboard.=20 When building a home computer, I'll use AMD or Pentium. If I use an = AMD, I use Artic Silver paste, I'm almost to the point of lapping the = heatsink and CPU plate to make sure they mate well (but that'll be if I = get into overclocking), making sure no cables restrict airflow, it has = the heatsink clip that slides over 3 tabs on the socket to hold it in = place instead of just one, and load a monitor on startup to watch the = AMD for quite awhile after setting up a new system. At work, I only use = Pentiums because of its on-die protection to reduce its duty cycle to = prevent it from overheating. The AMDs will self-destruct without = external circuitry to protect it. You might not be at the computer when = the AMD decides to fry and take your motherboard with it. For a video on how fast the AMD will burn up and how the Pentium = protects itself, see Tom's Hardware article at: article - http://snipurl.com/5fon video - http://snipurl.com/5fom A bit dated but still applicable. The video requires the DivX decoder, = so you might as well as download and install the latest one (if you want = to watch the video). Hopefully yours didn't get too damaged. --=20 __________________________________________________ ____________________ Post replies to newsgroup. Share with others. E-mail not accepted. __________________________________________________ ____________________ |
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