diff --git a/src/cpu/amd/model_fxx/powernow_acpi.c b/src/cpu/amd/model_fxx/powernow_acpi.c
index 02e03069f1..ab7497aacd 100644
--- a/src/cpu/amd/model_fxx/powernow_acpi.c
+++ b/src/cpu/amd/model_fxx/powernow_acpi.c
@@ -478,6 +478,10 @@ struct cpuentry entr[] = {
 	{850, 0x14, 0x20f51, 0x10, 0x10, 853,
 	 {{2200, 1350, 853}, {2000, 1300, 827},
 	  {1800, 1250, 702}, {1000, 1100, 301}}},
+	/* OSA248CEP5AU */
+	{248, 0x10, 0x00f5a, 0xe, 0xe, 890,
+	 {{2000, 1400, 700}, {1800, 1300, 470},
+	  {1000, 1200, 280}}},
 /* begin OSK246FAA5BL */
 	{246, 0x12, 0x20f51, 0xc, 0xc, 547,
 	 {{1800, 1350, 461}, {1000, 1100, 223}}},
@@ -561,6 +565,10 @@ struct cpuentry entr[] = {
 	{180, 0x2c, 0x20f32, 0x10, 0x10, 1100,
 	 {{2200, 1300, 1056}, {2000, 1250, 891},
 	  {1800, 1200, 748}, {1000, 1100, 466}}},
+	/* OSP280 */
+	{280, 0x31, 0x20f12, 0x10, 0x10, 680,
+	 {{2200, 1250, 650}, {2000, 1200, 574},
+	  {1800, 1150, 433}, {1000, 1100, 220}}},
 	/* AMA3000BEX5AR */
 	{3000, 0x4, 0xf4a, 0xa, 0x0, 815,
 	 {{1600, 1400, 570}, {800, 1100, 190}}},