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I just bought 4x 4GB RAM sticks (A-TECH, bottom in pic) to try to upgrade my machine to 16GB which is the max per ASUS specs for this motherboard, but I've tried installing each one and I can't even get the machine to POST. No beeps, no feedback of any kind, simply black screen when I turn it on.

I've read about messing with BIOS settings but I'm unfamiliar with specifics, can anyone help? or just tell me if these RAM sticks are incompatible?

The RAM stick on the top SUPER-TALENT, is the 2 i have installed already totalling 4GB.

https://drive.google.com/open?id=0B2tkp6sohxjrNVBQUHFPQ05qa3ZadjN1Wk5pa3pCSU5leFRR

Motherboard: ASUS P5QE -https://www.asus.com/Motherboards/P5Q/

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    One problem I see with the A-TECH stick is that it's ECC RAM. Your specifications say that it needs to be non-ECC, un-buffered RAM. If you're adding both sticks, the ECC RAM is the one that is probably causing the problems.
    – DrZoo
    Commented Dec 8, 2016 at 16:05
  • great, yes.. that must be it. now to figure out how to ship something back through amazon. lol. thanks! i'll close this out once i can confirm.
    – diegohb
    Commented Dec 8, 2016 at 16:08
  • Shipping it back to Amazon is a breeze. If it is the ECC RAM that is the issue, just @me and I can move it to an answer.
    – DrZoo
    Commented Dec 8, 2016 at 16:09
  • @DrZoo - cool thanks! is non-ECC way more expensive? looks like it's 255$ for the same kit i bought for $50 .. ? on amazon: amazon.com/Pavilion-m9517c-NON-ECC-PC2-6400-Tech/dp/B00M4G43U6/…
    – diegohb
    Commented Dec 8, 2016 at 16:14
  • Non-ECC is actually cheaper. ECC is more expensive because it has a type of error correction. The reason it's expensive is because it's DDR2 which is old and hard to find. So essentially it's overpriced because it's not manufactured as much. I'm having no problem finding 4 GB kits, but the 16 GB kits seem to be hard to find in non ECC.
    – DrZoo
    Commented Dec 8, 2016 at 16:21

2 Answers 2

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The ASUS P5Q motherboard does not support ECC RAM like you have in your picture, which is the reason why it is failing to boot.

The board that you have supports DDR2 1200/1066/800/667 MHz RAM. After doing some research, there are a some P5Q motherboards that support 16 GB of DDR2 RAM and 8 GB of DDR3 RAM. You can easily tell if your board supports the DDR3 option by looking how many RAM slots it has. If it has 4 slots, it only supports DDR2. If it has 6 slots, it supports the DDR2 option and the DDR3 option.

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  • this is what I ended up ordering... memorystock.com/orderitem.asp?it=766ms-766 will update this posting if it works or not.. @ $80 a pop... crossing fingers.
    – diegohb
    Commented Dec 28, 2016 at 3:17
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    @diegohb by the looks of it, that should work just fine.
    – DrZoo
    Commented Dec 28, 2016 at 3:24
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ASUS P5Q Motherboard supports only DDR2 Non-ECC Memory. Recommended speed is 800 MHz as max. Supports up to 1200 MHz.

ECC Registered is not supported and will not work with P5Q.

Refer this link for compatible RAM upgrades:

http://www.memorystock.com/memory/ASUSP5QMotherboardDDR2800MHz.html

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  • so according to this there is not any compatible 4gb sticks for this motherboard.. ?
    – diegohb
    Commented Dec 8, 2016 at 18:51
  • @diegohb - No; That list is memory that has been confirmed to be compatiable. Any DDR2 800MHz non-ecc memory will work.
    – Ramhound
    Commented Dec 8, 2016 at 19:15

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