Memory chips
To identify chips on older memory modules:
Corsair DDR3
Version Vendor IC Size
1.X Qimonda 64/128Mx8
1.1X Qimonda 256x8
1.2X Qimonda 512Mx8
2.X Elpida 64/128Mx8
2.1X Elpida 256Mx8
2.2X Elpida 512Mx8
3.X Micron 128Mx8
3.1X Micron 256Mx8
3.2X Micron 512Mx8
4.X Samsung 128Mx8
4.1X Samsung 256Mx8
4.2X Samsung 512Mx8
5.X Hynix 128Mx8
5.1X Hynix 256Mx8
5.2X Hynix 512Mx8
6.X Promos 128Mx8
6.1X Promos 256Mx8
6.2X Promos 512Mx8
7.X (PSC) 128Mx8
7.1X (PSC) 256Mx8
7.2X (PSC) 512Mx8
8.X Nanya 128Mx8
8.1X Nanya 256Mx8
8.2X Nanya 512Mx8
9.X Winbond A1-Die 128MX8
9.1X Winbond 256Mx8
9.2X Winbond 512Mx8
G-skill
Use the 4 digits after the first digits in the serialnumber
0140 = Micron
0000 = Hynix
0240 = Hynix
0360 = Samsung
0640 = Elpida non-Hyper
0650 = Elpida (seen on blue PCB Tridents)
0660 = Elpida non-Hyper
0690 = Elpida Hyper
1040 = PSC
1240 = Nanya (?)
Related to Timings:
tRC=tRAS+tRP
tFAW=16 DRAM clocks or tRRD * 4
Write to Precharge Delay / Write Recovery Time or tWR = tCL - 1 +BL/2 + tWR
tRAS = CL + tRCD+tRP
DRAM Write Latency = CL -1
Write to Read = tCL - 1 +BL/2 + tWTR.
BL(Burst Lenght) practically always 8
tCAS in Nano seconds=(CAS*2000)/Memory Frequency