Gigabyte mobo ?
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From: philo on 5 Nov 2009 13:35 JD wrote: > philo wrote: >> I've got a GA-K8N Pro-sli on the workbench >> >> It typically takes 8 - 12 tries to get it to boot up.. >> but once booted the machine runs fine. >> >> I've tried everything I can think up... >> reflashed the bios with a newer one. >> >> Tried a different power supply / ram / video card etc >> >> even changed the cmos battery >> >> >> Since the machine starts too unreliably I'm going to pitch the mobo >> into the recycle bin... >> >> >> unless someone here has an idea I've missed > > > It could be in the motherboard or in the connections or it could be that > you have a faulty power supply. > > Make sure all the connections - right up to the wall power socket - are > very > firmly in place. First shut down the box and then pull each connector > out and push > it back firmly into place. Restart. > > Good luck! already tried that
From: philo on 5 Nov 2009 13:41 Paul wrote: > philo wrote: >> I've got a GA-K8N Pro-sli on the workbench >> >> It typically takes 8 - 12 tries to get it to boot up.. >> but once booted the machine runs fine. >> >> I've tried everything I can think up... >> reflashed the bios with a newer one. >> >> Tried a different power supply / ram / video card etc >> >> even changed the cmos battery >> >> >> Since the machine starts too unreliably I'm going to pitch the mobo >> into the recycle bin... >> >> >> unless someone here has an idea I've missed > > It has Dual BIOS, so you'd probably have to reflash it twice, > if you wanted to be absolutely certain both BIOS choices were > running the same version. As far as I know, the Gigabyte scheme > uses one boot block and two main BIOS code blocks, so there > is only one boot block to run the whole thing. Meaning, if > the boot block is damaged, then the dual BIOS won't work. > Well there may be something there... as to access the recovery BIOS the prompt is to hit F9 I tried that prior to re-flashing the BIOS but hitting F9 did nothing... I suppose that since the board is heading for the recycle bin anyway... I might as well try re-flashing the BIOS again > Check that the settings have returned to defaults. > Load setup defaults or whatever. Make sure the processor > used, is listed in the support chart. > > http://www.gigabyte.com.tw/Support/Motherboard/CPUSupport_Model.aspx?ProductID=1883#anchor_os Yep set it back to defaults > > > There were a few AMD processors, that suffered from > electromigration due to overclocking. If you suspect > that is the case (user abuse), you can try running the processor > below stock speed, and see if that helps. > Was not over-clocked but I might as well try under clocking it > You can check the reviews on Newegg, and see if there > is a common theme. > > http://www.newegg.com/Product/ProductReview.aspx?Item=13-128-301&SortField=0&SummaryType=0&Pagesize=100&SelectedRating=-1&Page=1 > > > It is possible the PCI Express slots are sensitive to static. > Carefully set the paddle card, to x8/x8 mode, on the > off chance that the video will work better if only > half the bus is being used. Use antistatic precautions, > like a wrist strap, while changing the paddlecard, just > in case. > Pulled all the PCIe cards and was testing it with a PCI video card only > It is kinda amazing, that a single chip Nvidia chipset solution, > can run without a cooling fan. > > Your problem could be occurring while the boot block is doing > its thing, so in fact the problem could be entirely at stock > speeds. I don't know whether a board like that, does a double > restart to apply user settings or not. If it does do something > like that, there might not be much in fact that you can do with > the BIOS, to influence the problem. > > Drop to one stick of RAM and see if that helps. > > Paul Yep...even tried that too thanks for the ideas... I hate to give up... but suspect this one is not going to be put back into service
From: philo on 5 Nov 2009 14:40 a cooling fan. >> >> Your problem could be occurring while the boot block is doing >> its thing, so in fact the problem could be entirely at stock >> speeds. I don't know whether a board like that, does a double >> restart to apply user settings or not. If it does do something >> like that, there might not be much in fact that you can do with >> the BIOS, to influence the problem. >> >> Drop to one stick of RAM and see if that helps. >> >> Paul > > Yep...even tried that too > > > thanks for the ideas... > I hate to give up... > but suspect this one is not going to be put back into service Under clocking did not help... I think I'll recycle the board
From: larry moe 'n curly on 6 Nov 2009 05:34 philo wrote: > I've got a GA-K8N Pro-sli on the workbench > > It typically takes 8 - 12 tries to get it to boot up.. > but once booted the machine runs fine. > > I've tried everything I can think up... > reflashed the bios with a newer one. > > Tried a different power supply / ram / video card etc > > even changed the cmos battery > > > Since the machine starts too unreliably I'm going to pitch the mobo into > the recycle bin... > > unless someone here has an idea I've missed Lots of good info and advice here: www.badcaps.net If any cylindrical capacitors are bulging or leaking on top, they and all the ones just like them have to be replaced.
From: philo on 6 Nov 2009 05:48 larry moe 'n curly wrote: > > philo wrote: >> I've got a GA-K8N Pro-sli on the workbench >> >> It typically takes 8 - 12 tries to get it to boot up.. >> but once booted the machine runs fine. >> >> I've tried everything I can think up... >> reflashed the bios with a newer one. >> >> Tried a different power supply / ram / video card etc >> >> even changed the cmos battery >> >> >> Since the machine starts too unreliably I'm going to pitch the mobo into >> the recycle bin... >> >> unless someone here has an idea I've missed > > Lots of good info and advice here: www.badcaps.net > > If any cylindrical capacitors are bulging or leaking on top, they and > all the ones just like them have to be replaced. > > > Thanks the first thing I did was look at the caps... they all look fine. Of course looks don't tell the whole story. About a year ago I did once try replacing the obviously bad caps on another mobo... but it was still flaky...so I assumed there were still some bad ones that just had not yet exhibited bulging. Considering that I've gotten several new boards in the $50 price range...to me, it's not worth it to bother with replacing caps...
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