Mixing and matching RAM? Anything to be worried about?

[Vindaloovians]

I get the timings must be the same, as of the voltage/speed? The ram I have is OEM stuff, I'll post the specs below but I think I have the right ram to use? My timings are 9-9-9-24.

http://www.amazon.co.uk/dp/B003XFT3XE/?tag=pcp0f-21

SMBus address 0x51
Memory type DDR3
Module format UDIMM
Manufacturer (ID) Hyundai Electronics (AD00000000000000)
Size 4096 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number HMT351U6BFR8C-H9
Serial number 337435D3
Manufacturing date Week 29/Year 11
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no

 

[hans_pcguy]

They don't even need to be of the same timing. You machine will default to the speed/timing of the slowest ram.

 

[Tradesman1]

Try installing the new stick, if it boots OKAY, go into BIOS and raise the DRAM voltage to 1.56 then try adding the older OEM stick and see if that helps - may also want to ensure you have the latest BIOS