New DDR3 RAM not working?

Custom / CUSTOM
September 30, 2012 at 03:42:02
Specs: Windows XP SP3, 3.214 GHz / 3327 MB
So I decided to replace my current Mushkin 996659ES 2x2GB RAM with some newer and more powerful RAM.

I bought the Corsair CMZ8GX3M2A1600C9 2x4GB RAM and put it in where the Mushkin previously was. Now, when starting my PC, the computer won't even get to POST, let alone give me an error message.

My motherboard is an ASUS M4A785TD-V EVO, which as far as I can tell SHOULD be fully capable of accepting the new RAM.

I have tried resetting CMOS using the jumper and also by removing the battery.

I have tried using the other RAM slots, no change.

I have tried using ONE of the new RAM (tried this with both, individually) in case one was faulty, but same result. If I put the Mushkin back in, no problem again...

Any suggestions? I am a bit bemused by this, and perhaps am missing something very simple?


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September 30, 2012 at 04:10:15
According to your motherboard requires ECC ram however the kit you bought is Non-ECC. Wrong stuff.

Goin' Fishin' (Some day)

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September 30, 2012 at 05:24:50

Thanks for the tip.

Although what I don't understand is that if I run a scan, it recommends lots and lots and lots of different NON-ECC RAM as compatible modules. Is there a way to be sure of the compatibility beyond a scan from a store that actually sells what it recommends?

Plus, according to the site I looked at for the motherboard, it says that ECC AND Non-ECC are supported:

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September 30, 2012 at 05:46:53
Check that ECC is disabled in the BIOS.

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September 30, 2012 at 09:50:21
You listed XP as your OS. If that's correct, 4GB is the max, but only 3.0-3.5GB will be recognized. Also, AM3 CPUs only officially support DDR3-1333. To get your DDR3-1600 RAM to run at 800MHz (1600MHz DDR), you'd have to overclock. I see no reason why the RAM shouldn't work, I just don't see any reason for the upgrade, especially if you're running XP & not overclocking.

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September 30, 2012 at 23:59:30
@riider, actually I have a dual boot system and the plan is that once I get the RAM working, I will make Win 7 my primary OS of choice. Thanks for the pointers, though.

As for disabling ECC in the BIOS, I eventually got around to looking in the BIOS, and it seems as if ECC already IS disabled in there.. at least from my understanding, there were a bunch of options under ECC which didn't make the least bit of sense to me, but they were all disabled anyhow.

So if the motherboard CAN accept non-ECC memory, and the BIOS seems to have ECC disabled, I'm right back where I started! Any other suggestions, guys? Thanks for the ones so far, BTW.

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