diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index 9a9cb5cf1..6f004ee78 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -8650,7 +8650,7 @@ const machine_t machines[] = {
         .gpio_acpi_handler = NULL,
         .cpu = {
             .package = CPU_PKG_SOCKET3,
-            .block = CPU_BLOCK(CPU_i486SX, CPU_i486DX, CPU_Am486SX, CPU_Am486DX),
+            .block = CPU_BLOCK_NONE,
             .min_bus = 0,
             .max_bus = 0,
             .min_voltage = 0,
@@ -8661,7 +8661,7 @@ const machine_t machines[] = {
         .bus_flags = MACHINE_PS2_PCI,
         .flags = MACHINE_IDE_DUAL | MACHINE_APM | MACHINE_VIDEO,
         .ram = {
-            .min = 2048,
+            .min = 1024,
             .max = 131072,
             .step = 1024
         },
@@ -13838,7 +13838,7 @@ const machine_t machines[] = {
         .ram = {
             .min = 8192,
             .max = 1572864,
-            .step = 1024
+            .step = 8192
         },
         .nvrmask = 255,
         .kbc_device = NULL,
@@ -13878,7 +13878,7 @@ const machine_t machines[] = {
         .ram = {
             .min = 8192,
             .max = 1572864,
-            .step = 1024
+            .step = 8192
         },
         .nvrmask = 255,
         .kbc_device = NULL,
@@ -13920,7 +13920,7 @@ const machine_t machines[] = {
         .ram = {
             .min = 8192,
             .max = 786432,
-            .step = 1024
+            .step = 8192
         },
         .nvrmask = 255,
         .kbc_device = NULL,
@@ -14084,7 +14084,7 @@ const machine_t machines[] = {
         .bus_flags = MACHINE_PS2_AGP | MACHINE_BUS_USB,
         .flags = MACHINE_IDE_DUAL | MACHINE_APM | MACHINE_ACPI | MACHINE_USB,
         .ram = {
-            .min = 1024,
+            .min = 8192,
             .max = 1572864,
             .step = 8192
         },
@@ -14443,7 +14443,7 @@ const machine_t machines[] = {
         .cpu = {
             .package = CPU_PKG_SOCKET5_7,
             .block = CPU_BLOCK_NONE,
-            .min_bus = 66666667,
+            .min_bus = 60000000,
             .max_bus = 100000000,
             .min_voltage = 2000,
             .max_voltage = 3520,
@@ -14455,7 +14455,7 @@ const machine_t machines[] = {
         .ram = {
             .min = 8192,
             .max = 786432,
-            .step = 1024
+            .step = 8192
         },
         .nvrmask = 255,
         .kbc_device = NULL,
@@ -15027,7 +15027,7 @@ const machine_t machines[] = {
         .bus_flags = MACHINE_PS2_AGP | MACHINE_BUS_USB,
         .flags = MACHINE_IDE_DUAL | MACHINE_APM | MACHINE_ACPI | MACHINE_GAMEPORT | MACHINE_USB, /* Machine has internal sound: C-Media CMI8330 */
         .ram = {
-            .min = 1024,
+            .min = 8192,
             .max = 1572864,
             .step = 8192
         },