Baffling SOYO motherboard problem

wclemen · 06-25-2005, 05:15 PM

Have a 3 year old 6VCa, Bios 2AA5, running PIII, 600E just fine. Decided to upgrade to used PIII, 933. No boot to BIOS, no beep, no video. Put 600E back in - everything fine. New CPU has been tested in another MB and works fine. Have removed all unnecessary peripherals, including RAM - no change. SOYO says PIII, 933 is compatible. Ideas???

**mgoldb2** · 06-25-2005, 05:39 PM

Quote:

Originally Posted by wclemen

Have a 3 year old 6VCa, Bios 2AA5, running PIII, 600E just fine. Decided to upgrade to used PIII, 933. No boot to BIOS, no beep, no video. Put 600E back in - everything fine. New CPU has been tested in another MB and works fine. Have removed all unnecessary peripherals, including RAM - no change. SOYO says PIII, 933 is compatible. Ideas???

Alright I think the problem is you need to change you fsb settings to get the new cpu to work. p3 600E is 100fsb while p3EB 933mhz is 133fsb. To do this depends on your motherboard. On some you do it through the bios. on other there a jumper setting on the motherboard. check you motherboard manual to figure which one it is for you.

wclemen · 06-25-2005, 06:04 PM

Thos settings are all in BIOS on this MB. I had tried this: Booted into BIOS setup while running 600E. Changed CPU/PCI Frequency to 133/33, multiplier to 7, FSB to "Host frequency" (I believe that makes it 133 in this case). Saved CMOS settings and exited BIOS setup. Powered off PC. Swapped CP for 933. Still son't boot. I'm stumped and look forward to any additional ideas.

~~whodat~~ · 06-25-2005, 06:10 PM

hello
are you running straight out pc100 ram on that board?
it might want the pc100/133 with the 133 fsb chip upgrade.
also...
try clearing the bios on your next attempt

good luck and post back

**mgoldb2** · 06-25-2005, 06:16 PM

Also you said it compatiable with your motherboard. Are you certain it compatiable with your version of the bios? Sometimes you need to update to newest bios for additional cpu support.

wclemen · 06-25-2005, 06:58 PM

Quote:

Originally Posted by whodatknocking

hello
are you running straight out pc100 ram on that board?
it might want the pc100/133 with the 133 fsb chip upgrade.
also...
try clearing the bios on your next attempt

good luck and post back

With the 600E, I am running PC133's with the DRAM freq set at 100+33.

wclemen · 06-25-2005, 07:01 PM

Quote:

Originally Posted by mgoldb2

Also you said it compatiable with your motherboard. Are you certain it compatiable with your version of the bios? Sometimes you need to update to newest bios for additional cpu support.

I have the latest BIOS from SOYO and they rate max PIII cpu as 933MHZ at http://www.soyogroup.com/kb/kbdesc.php?id=15

wclemen · 06-25-2005, 11:11 PM

Quote:

Originally Posted by whodatknocking

hello
are you running straight out pc100 ram on that board?
it might want the pc100/133 with the 133 fsb chip upgrade.
also...
try clearing the bios on your next attempt

good luck and post back

Hi
OK. I've tried clearing the bios. No help. I reset CMOS to "fail safe" settings and CPU to hardware default freq & only 3X mult. No help. Removed all RAM. No beeps. System always acts as expected when 600E is installed. I'm beginning to think SOYO led me astray.
Thanks for trying!

wclemen · 06-25-2005, 11:14 PM

Quote:

Originally Posted by wclemen

Hi
OK. I've tried clearing the bios. No help. I reset CMOS to "fail safe" settings and CPU to hardware default freq & only 3X mult. No help. Removed all RAM. No beeps. System always acts as expected when 600E is installed. I'm beginning to think SOYO led me astray.
Thanks for trying!

Make that cleared the CMOS and reset the BIOS!

~~whodat~~ · 06-26-2005, 01:43 AM

of course
clear the cmos..but make sure the battery is out for at least 20 min.
do you have another power supply to try?

wclemen · 06-26-2005, 03:38 PM

Quote:

Originally Posted by whodatknocking

of course
clear the cmos..but make sure the battery is out for at least 20 min.
do you have another power supply to try?

Hmmm.
I disconnected ATX power connector and shorted the "Clear CMOS Data" pins. Didn't think to do the battery. I'll try that next.
PS is new. Old one was small but operates OK. Changing PS makes no difference when I try to boot the 933.

~~whodat~~ · 06-26-2005, 06:18 PM

hi
hopefully the battery deal will do it...goodluck

wclemen · 06-27-2005, 06:51 PM

Removed battery and cleared CMOS correctly this time - no help.
I thought maybe the heat sink was causing a problem - swapped heat sink on the 933 with the one off my 600E. Plugged 'er in and ..... it worked! All BIOS settings function as advertised: 933MHZ CPU, 133 FSB, PC133 - nice!

Then I made a fatal error - cpu fan was noisy on old heatsink. So ... I removed cpu, swapped fans, reinserted cpu and ... you guessed it - NADA ever since!!!

I'm thinking bad socket. Put the 600E back in & it works. Must have inserted & removed the 933 a couple of dozen times. I give up. It's just going to have to be fast enough, sigh.

Thanks for all the advice and support.

Bye.

06-25-2005, 05:15 PM	#1 (permalink)
wclemen Registered User Join Date: Jun 2005 Posts: 8 OS: Win2000,98,XP,OS-9,Linux	Baffling SOYO motherboard problem Have a 3 year old 6VCa, Bios 2AA5, running PIII, 600E just fine. Decided to upgrade to used PIII, 933. No boot to BIOS, no beep, no video. Put 600E back in - everything fine. New CPU has been tested in another MB and works fine. Have removed all unnecessary peripherals, including RAM - no change. SOYO says PIII, 933 is compatible. Ideas???

06-25-2005, 06:04 PM	#3 (permalink)
wclemen Registered User Join Date: Jun 2005 Posts: 8 OS: Win2000,98,XP,OS-9,Linux	Tried that Thos settings are all in BIOS on this MB. I had tried this: Booted into BIOS setup while running 600E. Changed CPU/PCI Frequency to 133/33, multiplier to 7, FSB to "Host frequency" (I believe that makes it 133 in this case). Saved CMOS settings and exited BIOS setup. Powered off PC. Swapped CP for 933. Still son't boot. I'm stumped and look forward to any additional ideas.

06-25-2005, 06:16 PM	#5 (permalink)
mgoldb2 TSF Enthusiast Join Date: Dec 2004 Posts: 604 OS: windows xp	Also you said it compatiable with your motherboard. Are you certain it compatiable with your version of the bios? Sometimes you need to update to newest bios for additional cpu support. __________________

06-27-2005, 06:51 PM	#13 (permalink)
wclemen Registered User Join Date: Jun 2005 Posts: 8 OS: Win2000,98,XP,OS-9,Linux	Fixed, then broken again Removed battery and cleared CMOS correctly this time - no help. I thought maybe the heat sink was causing a problem - swapped heat sink on the 933 with the one off my 600E. Plugged 'er in and ..... it worked! All BIOS settings function as advertised: 933MHZ CPU, 133 FSB, PC133 - nice! Then I made a fatal error - cpu fan was noisy on old heatsink. So ... I removed cpu, swapped fans, reinserted cpu and ... you guessed it - NADA ever since!!! I'm thinking bad socket. Put the 600E back in & it works. Must have inserted & removed the 933 a couple of dozen times. I give up. It's just going to have to be fast enough, sigh. Thanks for all the advice and support. Bye.

06-25-2005, 06:10 PM	#4 (permalink)
~~whodat~~ Register user Join Date: Mar 2005 Posts: 5,931 OS: XP	hello are you running straight out pc100 ram on that board? it might want the pc100/133 with the 133 fsb chip upgrade. also... try clearing the bios on your next attempt good luck and post back

06-26-2005, 01:43 AM	#10 (permalink)
~~whodat~~ Register user Join Date: Mar 2005 Posts: 5,931 OS: XP	of course clear the cmos..but make sure the battery is out for at least 20 min. do you have another power supply to try?

06-26-2005, 06:18 PM	#12 (permalink)
~~whodat~~ Register user Join Date: Mar 2005 Posts: 5,931 OS: XP	hi hopefully the battery deal will do it...goodluck