diff --git a/src/hwm_lm75.c b/src/hwm_lm75.c
index 1b6431395..0d937c194 100644
--- a/src/hwm_lm75.c
+++ b/src/hwm_lm75.c
@@ -133,7 +133,7 @@ lm75_read(lm75_t *dev, uint8_t reg)
     else
     	ret = dev->regs[reg & 0x7];
 
-    lm75_log("LM75: read(%x) = %02x\n", reg, ret);
+    lm75_log("LM75: read(%02X) = %02X\n", reg, ret);
 
     return ret;
 }
@@ -186,7 +186,7 @@ lm75_smbus_write_word_cmd(uint8_t addr, uint8_t cmd, uint16_t val, void *priv)
 uint8_t
 lm75_write(lm75_t *dev, uint8_t reg, uint8_t val)
 {
-    lm75_log("LM75: write(%x, %02x)\n", reg, val);
+    lm75_log("LM75: write(%02X, %02X)\n", reg, val);
 
     /* The AS99127F hardware monitor uses the addresses of its LM75 devices
        to access some of its proprietary registers. Pass this operation on to
diff --git a/src/hwm_lm78.c b/src/hwm_lm78.c
index 2ecc36f14..2cac22881 100644
--- a/src/hwm_lm78.c
+++ b/src/hwm_lm78.c
@@ -142,7 +142,7 @@ lm78_isa_read(uint16_t port, void *priv)
     		}
     		break;
     	default:
-    		lm78_log("LM78: Read from unknown ISA port %x\n", port & 0x7);
+    		lm78_log("LM78: Read from unknown ISA port %d\n", port & 0x7);
     		break;
     }
 
@@ -197,7 +197,7 @@ lm78_read(lm78_t *dev, uint8_t reg, uint8_t bank)
     		ret = dev->regs[reg];
     }
 
-    lm78_log("LM78: read(%02x, %d) = %02x\n", reg, bank, ret);
+    lm78_log("LM78: read(%02X, %d) = %02X\n", reg, bank, ret);
 
     return ret;
 }
@@ -223,7 +223,7 @@ lm78_isa_write(uint16_t port, uint8_t val, void *priv)
     		}
     		break;
     	default:
-    		lm78_log("LM78: Write %02x to unknown ISA port %x\n", val, port & 0x7);
+    		lm78_log("LM78: Write %02X to unknown ISA port %d\n", val, port & 0x7);
     		break;
     }
 }
@@ -258,7 +258,7 @@ lm78_write(lm78_t *dev, uint8_t reg, uint8_t val, uint8_t bank)
 {
     lm75_t *lm75;
 
-    lm78_log("LM78: write(%02x, %d, %02x)\n", reg, bank, val);
+    lm78_log("LM78: write(%02X, %d, %02X)\n", reg, bank, val);
 
     if (((reg >> 4) == 0x5) && (bank != 0)) {
     	/* LM75 registers */
@@ -343,7 +343,7 @@ lm78_write(lm78_t *dev, uint8_t reg, uint8_t val, uint8_t bank)
     		dev->active_bank = (dev->regs[0x4e] & 0x07);
     		break;
     	case 0x87:
-    		/* fixes AS99127F boards hanging after save & exit, probably a reset register */
+    		/* fixes AS99127F boards hanging after BIOS save & exit, probably a reset register */
     		if ((dev->local & LM78_AS99127F) && (val == 0x01)) {
     			lm78_log("LM78: Reset requested through AS99127F\n");
     			resetx86();
diff --git a/src/spd.c b/src/spd.c
index 4b63c6d2c..84ba3eb84 100644
--- a/src/spd.c
+++ b/src/spd.c
@@ -73,7 +73,7 @@ spd_read_byte_cmd(uint8_t addr, uint8_t cmd, void *priv)
 {
     spd_t *dev = (spd_t *) priv;
     uint8_t ret = *(spd_data[dev->slot] + cmd);
-    spd_log("SPD: read(%02x, %02x) = %02x\n", addr, cmd, ret);
+    spd_log("SPD: read(%02X, %02X) = %02X\n", addr, cmd, ret);
     return ret;
 }
 
@@ -195,7 +195,7 @@ spd_register(uint8_t ram_type, uint8_t slot_mask, uint16_t max_module_size)
     	/* populate slot */
     	vslots[vslot] = (1 << log2_ui16(MIN(total_size, max_module_size)));
     	if (total_size >= vslots[vslot]) {
-    		spd_log("SPD: vslot %d = %d MB\n", vslot, vslots[vslot]);
+    		spd_log("SPD: initial vslot %d = %d MB\n", vslot, vslots[vslot]);
     		total_size -= vslots[vslot];
     	} else {
     		vslots[vslot] = 0;