Faulty board? memory? other?

[Hashassin]

Got my bits yesterday and built a system based around,

NF650iSLIT-A
E4300
2x 1Gb Corsair Value Select
Greatpower 550W PSU

But having a lot of problems booting/rebooting it. Sometimes the fans come on but that's it, other times I get ~6 second long beeps, which I believe is a memory problem(?), other times it's fine and feels rock solid until rebooting. I've flashed the BIOS to the latest version, tried running one or both memory sticks in different slots but none of that helped.

Anyone any ideas? I don't have any spare parts to swap in to try and troubleshoot it, so hard to know what to raise an RMA on!

[chuckskull]

A long beep is memory on most motherboards. Your best bet would be to run memtest. http://www.memtest.org/ and go from there. You might also want to try setting the memory voltage and timings manually.

[Hashassin]

Well, no errors found with Memtest and I'm guessing if it was a motherboard/memory compatibility issue it wouldn't be this intermittent. After the system had been on for 5+ hours last night it was restarting fine every time, then switched it on this morning and it was dead again until a few power on/offs. Even with no memory fitted it doesn't beep so I'm guessing it's not even getting to POST at times.

[IAmATeaf]

Try upping the voltage for the RAM up by a notch, not too sure what these memory need but going from 1.8v to 1.9v may help.

[Hashassin]

Already got the memory at 1.9V.. ta anyway. I think it must be board or PSU related. Just noticed that PC Wizard is reporting the +12V as being 14.7V. Should I be worried about that or are hardware monitors not very accurate? It's far higher than I've seen on previous systems with different PSUs.

Edit: checked with a meter and it was 12.1V so I guess no problems with the voltage.

[Hashassin]

Seems like it was defective memory after all. Windows locked up on me last night, rebooted and only one gig of memory was now being seen.. found the dead stick with a bit of swapping and all I get is those long beeps when trying to boot with it.

[Dreaming]

Already got the memory at 1.9V.. ta anyway. I think it must be board or PSU related. Just noticed that PC Wizard is reporting the +12V as being 14.7V. Should I be worried about that or are hardware monitors not very accurate? It's far higher than I've seen on previous systems with different PSUs.

Edit: checked with a meter and it was 12.1V so I guess no problems with the voltage.

You know I had a similar problem. Might be my memory. But memtest thinks both sticks are fine! (I have got 0x00000008e errors too)