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#1
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GA-7VA Boot Problem
My son has a GA-7VA Motherboard with an Antec Plus 660 Case. The system will
power up, but the display will not sync up. The small green button on the case continously flashes and the system never boots up. This is a three year old system with an AMD 2000+ CPU. I have removed the display card and reseated the card and the one memory chip. Could someone recommend other things for me to try to troubleshoot. I have not removed the CPU chip from the motherboard and hope I don't have to. The fans are all working and I vacuumed the system as best as I can. Could this be a Power Supply problem? |
#2
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GA-7VA Boot Problem
"Jack" wrote in message
... My son has a GA-7VA Motherboard with an Antec Plus 660 Case. The system will power up, but the display will not sync up. The small green button on the case continously flashes and the system never boots up. This is a three year old system with an AMD 2000+ CPU. I have removed the display card and reseated the card and the one memory chip. Could someone recommend other things for me to try to troubleshoot. I have not removed the CPU chip from the motherboard and hope I don't have to. The fans are all working and I vacuumed the system as best as I can. Could this be a Power Supply problem? This is a nice board. There should be two lights: one for the power supply to show it is on and another to show that the hard drive is being accessed. You do not say if you get the boot up screen (BIOS). I think you say that nothing appears on the screen. You need to try another, known good graphics card or test yours in another machine; two computers can be very handy. Have you a computer friend with a spare card. If you have the book with the board look for the reset pins for the BIOS - you short them together. If you don't have the book it can be downloaded from Gigabyte for which you need a second computer or friend who is on the net. If you can read this then you have a second computer already. If it is not the card then repeat the process with the power supply although a test power supply may not be so easy to find. If it is not the card or power supply it may be the hard drive. If you get the BIOS and just the flashing light (hard drive access) and the power supply light is on try a hard drive test program such as PowerMax. Many hard drive makers have a test program you can download; it goes on a floppy with which you need that second computer again. Experienced - had a few crashes - computer users have all this kind of stuff in their 'toolbox'. |
#3
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GA-7VA Boot Problem
I use the same mobo... Could I suggest try a couple of things, try unplugging the power cord for 2 minutes or so and then try rebooting. if that dosen't help.. then removing the bios back up battery could help, *but doing this will set the bios to its default settings and would have to be reset these in the bios set up screen afterwards. * You'll get no boot up if this 3 volt battery is duff so swapping it 'may be' the best approach this only fit's one way of course. As you say the power supply could also be the cause... you'll get bios boot with just the CPU, RAM and graphic card connected, so it could be any of these items and indeed the mobo. What happens is when you press the power button the bios does a quick test known as POST (Power On Self Test) if ok it'll give that single ok bleep, then hands over control to the CPU and the CPU then orders the hard drive to load windows and any start up programmes into RAM.. and away you go. For some strange reason one GA7VA I have, if I have a power cut or disconnected the main power cord (ie switch off) I have to go through a little routine to get it to boot... I have to apply the main power press the power button, then unplug or swutch off the main power and then 'presto' it boots up at the second attempt... as though the 'power good signal' is too fast for the power supply. See this flow chart which may also help-: *Computer diagnosis charts - PSU, Hard drive & Cd Rom etc* 'Hard Drive Failure Diagnostics - Troubleshooting IDE CD, DVD and Hard Drive Problems' (http://www.fonerbooks.com/ide_hd.htm) and a after thought make sure the fans are running especially the Northbridge, which is a small gold one near the CPU, I think all GA-7VA has these and look out for these-: *Bad cap's in mobo's* 'Don Davidson Computer / Bad Capacitors in System Boards' (http://home.earthlink.net/~doniteli/index27.htm) these are taken from the sections of 'Computer help desk' on HTFC and the link for this is http://www.howtofixcomputers.com/bb/viewforum.php?f=48 Davy |
#4
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GA-7VA Boot Problem
I use the same mobo...
Could I suggest try a couple of things, try unplugging the power cord for 2 minutes or so and then try rebooting. if that dosen't help.. then removing the bios back up battery could help, but doing this will set the bios to its default settings and would have to be reset these in the bios set up screen afterwards. You'll get no boot up if this 3 volt battery is duff so swapping it 'may be' the best approach this only fit's one way of course. As you say the power supply could also be the cause... you'll get bios boot with just the CPU, RAM and graphic card connected, so it could be any of these items and indeed the mobo. What happens is when you press the power button the bios does a quick test known as POST (Power On Self Test) if ok it'll give that single ok bleep, then hands over control to the CPU and the CPU then orders the hard drive to load windows and any start up programmes into RAM.. and away you go. For some strange reason one GA7VA I have, if I have a power cut or disconnected the main power cord (ie switch off) I have to go through a little routine to get it to boot... I have to apply the main power press the power button, then unplug or swutch off the main power and then 'presto' it boots up at the second attempt... as though the 'power good signal' is too fast for the power supply. See this flow chart which may also help-: [b:55946c45d9]Computer diagnosis charts - PSU, Hard drive & Cd Rom etc[/b:55946c45d9] http://www.fonerbooks.com/ide_hd.htm and a after thought make sure the fans are running especially the Northbridge, which is a small gold one near the CPU, I think all GA-7VA has these and look out for these-: [color=blue:55946c45d9] [b:55946c45d9]Bad cap's in mobo's[/b:55946c45d9][/color:55946c45d9] http://home.earthlink.net/~doniteli/index27.htm these are taken from the sections of 'Computer help desk' on HTFC and the link for this is http://www.howtofixcomputers.com/bb/viewforum.php?f=48 Davy |
#5
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GA-7VA Boot Problem
"Davy" wrote in message
... I use the same mobo... Could I suggest try a couple of things, try unplugging the power cord for 2 minutes or so and then try rebooting. if that dosen't help.. then removing the bios back up battery could help, but doing this will set the bios to its default settings and would have to be reset these in the bios set up screen afterwards. You'll get no boot up if this 3 volt battery is duff so swapping it 'may be' the best approach this only fit's one way of course. As you say the power supply could also be the cause... you'll get bios boot with just the CPU, RAM and graphic card connected, so it could be any of these items and indeed the mobo. What happens is when you press the power button the bios does a quick test known as POST (Power On Self Test) if ok it'll give that single ok bleep, then hands over control to the CPU and the CPU then orders the hard drive to load windows and any start up programmes into RAM.. and away you go. For some strange reason one GA7VA I have, if I have a power cut or disconnected the main power cord (ie switch off) I have to go through a little routine to get it to boot... I have to apply the main power press the power button, then unplug or swutch off the main power and then 'presto' it boots up at the second attempt... as though the 'power good signal' is too fast for the power supply. See this flow chart which may also help-: [b:55946c45d9]Computer diagnosis charts - PSU, Hard drive & Cd Rom etc[/b:55946c45d9] http://www.fonerbooks.com/ide_hd.htm and a after thought make sure the fans are running especially the Northbridge, which is a small gold one near the CPU, I think all GA-7VA has these and look out for these-: [color=blue:55946c45d9] [b:55946c45d9]Bad cap's in mobo's[/b:55946c45d9][/color:55946c45d9] http://home.earthlink.net/~doniteli/index27.htm these are taken from the sections of 'Computer help desk' on HTFC and the link for this is http://www.howtofixcomputers.com/bb/viewforum.php?f=48 Davy Guys, I went out and purchased another power supply and everything is okay now. The only thing that's different is that I'm missing a 3 pin cable that connects to the System Fan junction on the motherboard. The power supply did not come with this cable as an option. I just ordered one via the internet and this should bring me back to the original setup. |
#6
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GA-7VA Boot Problem
Good one Jack... happy computing.
Davy |
#7
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GA-7VA Boot Problem
I have a Gigabyte 7VRXP with an XP2000+ CPU and have had similar problems on
and off. Bloody annoying I must say !!! Typically you would boot up and it would lock up when loading Windows. Then when you would reset it and it might reset OK or maybe keep on resetting itself etc. Sometimes it would reset itself or even turn itself off etc. Sometimes when turning it on, the screen would be blank with no POST etc and you wouild have to hardware reset it several times before it came good :-( Possible solutions (maybe different for your board) There are two electrolytic capacitors at the back of the motherboard near the yellow DB15 game connector. Check that their tops are not bulging. If they are then they will need replacing. Check the other electrolytic capacitors for bulging or leakage from the top. If using more than one ram module make sure they are matching speed grades. ie dont use PC2100 with PC2700 Ram. In the BIOS don't run RAM speed using 'AUTO'. Always set it to 266MHz even if your RAM can handle higher clock rates. I have PC2700 RAM and had the BIOS set to AUTO and it was causing no end of problems such as not booting up or resetting properly. When I set it back to 266Mhz it runs like a charm I believe there is a bug in the VIA KT333 chipset ;( regards david "Jack" wrote in message ... My son has a GA-7VA Motherboard with an Antec Plus 660 Case. The system will power up, but the display will not sync up. The small green button on the case continously flashes and the system never boots up. This is a three year old system with an AMD 2000+ CPU. I have removed the display card and reseated the card and the one memory chip. Could someone recommend other things for me to try to troubleshoot. I have not removed the CPU chip from the motherboard and hope I don't have to. The fans are all working and I vacuumed the system as best as I can. Could this be a Power Supply problem? |
#8
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GA-7VA Boot Problem
David;32005 Wrote: There are two electrolytic capacitors at the back of the motherboard near the yellow DB15 game connector. Check that their tops are not bulging. If they are then they will need replacing. Check the other electrolytic capacitors for bulging or leakage from the top. I understand that these was in the rev1 mobo they were up graded in rev2 versions - I have the rev1 and yes I replaced the very two, think they were 1200uF @ 6.3V, I used Panasonic 105deg C low esr FC type... I never had any problems with them, just that I don't like seeing distressed 'caps'.. ... nor do I have any problems if I used the auto setting in bios and I too use a AMD 2000+, now then back to these caps.... apparently due to industrial espionage... see-: 'Component Problems: Taiwan Low ESR Radial Aluminum Electrolytic Capacitors' (http://www.niccomp.com/taiwanlowesr.htm) More interesting reading 'Hushed-Up Disaster Dept. - Columns by PC Magazine' (http://www.pcmag.com/article2/0,4149,939887,00.asp) and what bad cap's look like see 'Don Davidson Computer / Bad Capacitors in System Boards' (http://home.earthlink.net/~doniteli/index27.htm) Don't get dissapointed guy's... we have replaced them in TV's, Video's & Digi boxe's so it just ain't computers . It's only certain GSC type's (or was it GCS), and effected only cap's from Taiwan, Japanese type's are NOT effected. Davy |
#9
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GA-7VA Boot Problem
Follow this link to the new board and you will see further replies to
this post. http://www.howtofixcomputers.com/for...html#post32683 You'll find some interesting reading. Davy |
#10
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GA-7VA Boot Problem
Thought I had the problems licked but unfortunately still have the problems
with random rebooting, screen going blank when booting into windows, and system locking up in windows :-( OK so this time I run memtest86 and get lots of errors. Sometimes running this test does not give any errors at all which makes things tricky :-( So I take the Rambo PC2700 512M stick out of the system and replace it with my original 2 x 256 PC2100 Elixir sticks. Along with the 1G PC2700 Kingston stick I still have 1.5G in my system. So I run memtest86 again and sure enough I get errors :-( So I have taken out the 2 x Elixir sticks and just left the remaining kingston 1G in the system. Set the BIOS for 333MHz operation and it runs without any glitches so far, but still a lot of testing to go to make sure. Early conclusion is that this board(GA-7VRXP Rev1.1) does not like a mixture of different branded RAMS even if they are the same speed grade. To think back, the original system with the two identical 256M Elixir sticks never gave any trouble. Only when I added the Rambo 512 stick I started having problems although this did not occur straight away. It is possible that something on the mother board has deteriorated and is causing the problems or maybe extra software and OS updates has caused a different load on the memory system thus exposing the fault ;-) regards david "davy" wrote in message ... David;32005 Wrote: There are two electrolytic capacitors at the back of the motherboard near the yellow DB15 game connector. Check that their tops are not bulging. If they are then they will need replacing. Check the other electrolytic capacitors for bulging or leakage from the top. I understand that these was in the rev1 mobo they were up graded in rev2 versions - I have the rev1 and yes I replaced the very two, think they were 1200uF @ 6.3V, I used Panasonic 105deg C low esr FC type... I never had any problems with them, just that I don't like seeing distressed 'caps'.. .. nor do I have any problems if I used the auto setting in bios and I too use a AMD 2000+, now then back to these caps.... apparently due to industrial espionage... see-: 'Component Problems: Taiwan Low ESR Radial Aluminum Electrolytic Capacitors' (http://www.niccomp.com/taiwanlowesr.htm) More interesting reading 'Hushed-Up Disaster Dept. - Columns by PC Magazine' (http://www.pcmag.com/article2/0,4149,939887,00.asp) and what bad cap's look like see 'Don Davidson Computer / Bad Capacitors in System Boards' (http://home.earthlink.net/~doniteli/index27.htm) Don't get dissapointed guy's... we have replaced them in TV's, Video's & Digi boxe's so it just ain't computers . It's only certain GSC type's (or was it GCS), and effected only cap's from Taiwan, Japanese type's are NOT effected. Davy |
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