Comment # 68 on bug 913996 from Takashi Iwai

FWIW, the machines I've tested are:

* HP Compaq 321
vendor_id    : AuthenticAMD
cpu family    : 16
model        : 6
model name    : AMD Athlon(tm) II P340 Dual-Core Processor
stepping    : 3
microcode    : 0x10000c8

* HP Compaq 6535s
vendor_id    : AuthenticAMD
cpu family    : 17
model        : 3
model name    : AMD Turion(tm)X2 Ultra DualCore Mobile ZM-80
stepping    : 1
microcode    : 0x2000032

* HP ProBook 4436s
vendor_id    : AuthenticAMD
cpu family    : 18
model        : 1
model name    : AMD A6-3400M APU with Radeon(tm) HD Graphics
stepping    : 0
microcode    : 0x3000027

* HP ProBook 4446s
vendor_id    : AuthenticAMD
cpu family    : 21
model        : 16
model name    : AMD A6-4400M APU with Radeon(tm) HD Graphics
stepping    : 1
microcode    : 0x6001119