Hi, The motherboard is a Gigabyte 8SIMLH rev 2.1. Symptoms: when pressing the power button the motherboard led (labeled DIMM_LED in the manual) is blinking (tried to search the net for what this means with no success, hence this post); the CPU fan is spinning, but nothing else happends (power off via the front power button is not working either). Stripping off HD, any extra cards and RAM makes no difference. The PSU seems to be working (tried it with a different MB). Is there anything you guys would advice trying in order to rule completely rule out power problems before pricing for a MB replacement? Thanks, Alec.
I've found a .pdf manual which you can view here. Your topic tells me you have the manual too, but to be sure, did you use the "troubleshooting" guide starting on page 89 found in the manual? The guide describes a step by step procedure which'll exclude the possibilities of boot failures caused by add-in cards, memory, cpu etc. If you've follow all steps in the troubleshooting guide alraedy, then you could try clearing your cmos. The manual describes the 2 methods available for use to clear CMOS; -There's the option to clear the CMOS which involves teporarily setting a jumper on the designated pins for that, you should try this method first. -And then there's a method to erase the CMOS which involves the removal of the motherboards battery for 10 minutes. Good luck, Marcel
The fact that the power supply works on one system doesn't mean anything. It may be underpowered for what you have, especially if it works on a less powerful system than what you're working with. You've said that you have no beeps, and given the fans spinning, it sounds like the power supply isn't up to snuff, or is getting a bit long in the tooth. Other causes can include fiddling with certain BIOS settings, particularly with memory tweaks and/or overclocking that can render the system unable to boot. Clearing CMOS should take care of that, if it doesn't, I'd snag another power supply.
