Asus P7P55D-E memory incompatible?

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mataebuna

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Dec 23, 2011
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Hello mates, i have recently bought 1x4gb ddr3 1600 mhz ram for the pc but they won't work. After hundreds of clear cmos and mem ok and swaping between the dimm's it finally passed the bios but it won't boot on windows 7. It shows blue screen right before the windows 7 icon appears on screen saying to remove new hardware and it also won't boot the windows 7 dvd, same thing, right before screen to install it shows blue error.
Question is are these rams compatible with motherboard and the I3 550 3.2 ghz proc compatible? From what i've seen on the motherboard i can use 1333,1600,2200 oc but it seems that the 1600 can't really work on this setup.
All i wanted is to upgrade the rams from 4 gb to 8 gb via 3 memories.
Old memory: 2x2kingston 1333 mhz with CL9.
New memory: 1x4 hyperx (kingston) 1600 mhz with CL9.
Question is: should i return the package and get another ram or is there something i am missing out from bios and stuffs like that.
New rams:
http://www.kingston.com/datasheets/HX316C9SR_4.pdf
Old rams (still using them because the new one can't be used):
http://www.kingston.com/dataSheets/KVR1333D3N9K2_4G.pdf
 
Solution
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I'll answer that. The Kingston modules mentioned in my previous post are definitely compatible (according to Kingston online memory search). You can check this yourself by using the Kingston memory search here.
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brispuss

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Dec 27, 2014
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The only known compatible Kingston 4 GB modules are -

KHX1600C9D3/4G @ 1600 MHz

KVR1333D3N9/4G @ 1333 MHz

KVR1333D3N9H/4G @ 1333 MHz

KVR1066D3N7/4G @ 1066 MHz

The reason that Kingston memory part number HX316C9SR/4 is not compatible is probably because it uses higher density memory chips (with respect to other known compatible memory) which is not recognized by the system.

Suggest using one of the known compatible memory listed above instead.

EDIT: It seems part number HX316C9SR/4 has similar density/characteristics to the known compatible memory part number KHX1600C9D3/4G, although there seems to be slight variation in voltage requirements. Maybe because of this voltage variation and maybe timings variation as well(?), the system may not recognize the module HX316C9SR/4.

Perhaps try clearing CMOS and trying the new module again, and maybe try different slots as well.
 
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Tradesman1

Tradesman1

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Jun 5, 2013
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The savage are a newer line of DRAM, most that have originated sine around 2011 and the introduction of the 1155 socket use the 4GB higher density memory ICs, previously the norm was the lower density 2Gb ICs. Look at the original Ripjaws (not the X or Z lines) or their NT series of value DRAM. Kingston no longer makes and DRAM with the low density ICs
 
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mataebuna

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So are the memories from the brispuss comment compatible with my oldy system?
 
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brispuss

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Dec 27, 2014
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The Kingston memory may be discontinued, but may still be available from stores. Have you checked (other) local/online stores?

Another consideration is when mixing memory, there is a chance that they will not work together due to differences in memory characteristics.

If not already done, the new Kingston memory could be tried by itself to see if it works.

The Kingston memory part number KVR1333D3N9/8G in your link is not compatible with the Asus P7P55D-E motherboard due to use of higher density memory chips.

You might want to consider using a 2 x 4 GB (=8 GB) dual channel kit instead, where the memory are guaranteed to be compatible with each other. The existing memory could be sold or kept as backups.

Compatible 2 x 4 GB dual channel kits -

Kingston KVR1333D3N9K2/8G @ 1333 MHz

Kingston KHX1600C9D3K2/8G @ 1600 MHz
 
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