Why is this Kingston Memory incompatible with ASUS motherboard?

I purchased an ASUS P8Z77-V LK motherboard [0]. It supports 4×240pin DDR3 2400(O.C.)/2200(O.C.)/2133(O.C.)/2000(O.C.)/1866(O.C.)/1800(O.C.)/1600/1333 memory, so I purchased two Kingston 8GB 240-Pin DDR3 SDRAM ECC Registered DDR3 1600 Server Memory DR x4 Model KVR16R11D4/8. [1]

I thought that memory would be compatible because it's 240-pin (same as the motherboard), and speed is DDR3 1600.

When I built the thing, the system would not boot and the motherboard was beeping the error code for "No memory detected". I tried to solve the issue by pressing the MemOK button which went through a number of different configurations automatically, but it still ended up with the DRAM_LED light on and the "no memory detected" beep.

I also tried booting with just a single stick of memory, then with the other stick, and with the sticks in different slots, to no avail.

I've ordered two sticks of Corsair memory now (CMZ8GX3M1A1600C10(XMP)) [2], from the's qualified vendor list for that specific motherboard [3].

I expect the new memory to work, but my question is this -- why didn't my first memory work?


4 answers Last reply Best Answer
More about kingston memory incompatible asus motherboard
  1. Some mb today can use ecc ram. (retail). You have to closely read there memory spec. The z77 chipset is a cheaper copy of the c line on intel server chipset. Most new z and older chipset look for non ecc ram.
  2. It doesn´t work because it is a registered memory module -- your motherboard needs a unbuffered ECC memory module.
  3. Best answer
    Reading the ASUS product page the motherboard does not support ECC ram.

    4 x DIMM, Max. 32GB, DDR3 2400(O.C.)/2200(O.C.)/2133(O.C.)/2000(O.C.)/1866(O.C.)/1800(O.C.)/1600/1333 MHz Non-ECC, Un-buffered Memory

    This is fairly normal for a consumer board. ECC or Error Correcting Code ram is normally a server/high end workstation product. It normally is more expensive than the equivlent consumer product as it has special chips to detect bit errors (usually some kind of CRC). This requires a specific chipset logic, which is not normally present in the consumer chipsets (although the northbridge is now integrated these days, so it is not normally present in the consumer CPU).
  4. Thanks for the information. I'll know what to look for, next time.
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