Asus P5P43TD PRO doesn't POST with new HyperX 1600 RAM

[Jennifer Bates]

I wanted to get more RAM for my older PC (CPU Q8400 on Asus P5P43TD). The motherboards' specs say it works with 1600Mhz RAM so I bought 8GB of Kingston HyperX Blu (Kit 2x4GB), code KHX1600C9D3B1K2/8GX.

I already have the latest version of BIOS but it doesn't POST for the life of me (fans are working, black screen, no beeps). I tried inserting only one stick (tried all 4 slots). I tried both sticks in slots 1 and 3, both sticks in slots 2 and 4, still no luck.

When I put back my old RAM (2x2048 Kingston Value RAM) it works just fine. Everything in BIOS is set to AUTO. I tried increasing the RAM voltage to 1.65v as specified on the new sticks without success.

I'm sure the memory is fine but I just can't get it to work. Any suggestions are greatly appreciated!

 

[razvan_mz]

I think you'll be lucky to get it to work at 1600MHz. because of the fsb of 333Mhz (1333)... your maximum speed of ram would be a 1333Mhz. theoretically, you'll have to set the fsb to 400 (1600), but this means overclocking the cpu, which is another story. you'll just have to run them downgraded. beside speed, ram voltage, you also have to set their timings that are meant to run. if not posting. let auto all, or just 1333.

 

[Jennifer Bates]

I already did let everything on AUTO (read my post). I would be more than happy to run them at 1333 but it just doesn't start, no beeps, no nothing, just a black screen...

 

[razvan_mz]

http://www.asus.com/Motherboards/P5P43TD/#support

also have this qualified vendor list in my face, from what I see: there is no 8gb (2x4gb kit) there in the DDR3-1600 section that work. maximum per module is 2gb. maybe this could be a problem too. so stick 2gb 1333 modules.

 

[Calvin7]

I would recommend using 1.25v as your Northbridge Voltage not Auto.

 

[Jennifer Bates]

There aren't any memories from the qualified vendor list available for purchase anymore. They are all ancient. Besides, the total memory capacity for this board is listed as 16GB so that means 4x4GB modules no?

What is that Northbridge Voltage thing and why would I set it to 1.25v?

 

[razvan_mz]

There aren't any memories from the qualified vendor list available for purchase anymore. They are all ancient. Besides, the total memory capacity for this board is listed as 16GB so that means 4x4GB modules no?

at that time the platform was build for ddr2-1066 max. usually ddr2-800. so yes, it could be used 4x4gb at those speeds. ddr3 adoption was just for cheap ram (eventualy) and marketing. performance gains are insignificant.

 

[Jennifer Bates]

Every time I need to change something in BIOS I need to swap the old RAM so I can get it to POST and allow me to enter the BIOS. This is getting tedious.

I could return this new RAM, no problems with that but if I get new ones, possibly from different manufacturer how do I know I won't run into the same problem??

 

[razvan_mz]

kingstion value ram are still produced. go for another kit that you have right now. use cpu-z to read the speed and latency of ram.