PC won't power on after installing new ram (did first time tho)

gizmo1990

gizmo1990

gizmo1990

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I've just tried to install some ram in my pc and it's gone a bit pear shaped and is refusing to turn on now, so I'm starting to panic a little!

My motherboard is an old intel mini-itx DH67CF. I got hold of 2x4gb corsair xms3 1600 ram and took all the usual precautions plugging it in. The pc booted fine the first time round and I entered the bios to check the timings.

The ram was showing up and I went to set the mhz speed at which point I realised that this board only runs up to 1333 ram. (I'm an idiot) In that case I thought ok I'll just run it at the default settings. I saved and exited. At this point the pc power light went off, blinked on again and then stayed off..

At this point I take out the new ram and put back in the old. Power the machine on and I just get the same thing now.. power light comes on, I can hear the fans start up but then the power cuts.

Like I said I'm panicking a bit here. :( Can anyone suggest what may be the problem?
 
As an addition, I've just tried turning it on again and the same thing happens but this time after the fans stop they then try to whirls up again after a couple of seconds, then they stop. Then the process repeats.

Could the mobo be detecting a short which is preventing it turning on as a safety feature perhaps? But then why was I able to get into the Bios the first time around, yet now it won't boot?
 
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Did you remember to check that voltage was correct for those memories?
Though old DIMMs should still work.

If clearing CMOS doesn't help one small possibility would be that basing to components PSU is old and has bad capacitors which cooled while you switched DIMMs and stopped working.
Ironically while heat kills electrolyte capacitors bad caps work better when warm...
 
Thanks for the replies guys.

What would clearing the bios achieve? Why would that make the pc get to the boot stage?

EsaT, the voltage was set to 1.5. I believe the new ram I got is 1.65 but since I couldn't run it at 1600 (as I mentioned, the motherboard only supports up to 1333) I just left the voltage at 1.5.
 
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