diff --git a/lboot.S b/lboot.S
index 5bc8a75..0b734b0 100644
--- a/lboot.S
+++ b/lboot.S
@@ -22,6 +22,7 @@
             .code16
 
             .set        PACKET_SIZE, 512
+            .set        TX_BUF_SIZE, 4096
 
             .macro      pxe_call, opcode
             push        %eax
@@ -38,7 +39,8 @@
             lcall       *pxe_api
             add         $6, %sp
             
-            or          %ss:(%bx), %ax
+            mov         %ss:(%bx), %cx
+            or          %cx, %ax
             jnz         _pcerr
 
             pop         %edx
@@ -76,6 +78,18 @@ _start:     cli
             call        print
             call        enable_a20
 
+            .set        PXE_GET_CACHED_INFO, 0x0071
+            push        $0
+            push        %cs
+            push        $tx_buf
+            push        $TX_BUF_SIZE
+            push        $2
+            push        $0
+            pxe_call    PXE_GET_CACHED_INFO
+            add         $12, %sp
+            mov         tx_buf+20, %eax
+            mov         %eax, server_ip
+
             mov         $msg_unreal, %si
             call        print
             call        unreal
@@ -92,18 +106,6 @@ _start:     cli
             call        print
             call        paging
 
-            .set        PXE_GET_CACHED_INFO, 0x0071
-            push        $0
-            push        %cs
-            push        $tx_buf
-            push        $PACKET_SIZE
-            push        $2
-            push        $0
-            pxe_call    PXE_GET_CACHED_INFO
-            add         $12, %sp
-            mov         tx_buf+20, %eax
-            mov         %eax, server_ip
-
             mov         $msg_read, %si
             call        print
             mov         $fn_initrd, %esi
@@ -432,8 +434,33 @@ long:
 hang:       hlt
             jmp         hang
 
-_pcerr:     mov         $msg_pcerr, %si
+_pcerr:     push        %cx
+
+            mov         $msg_pcerr, %si
             call        print
+
+            pop         %cx
+            push        %cx
+
+            xor         %bx, %bx
+            mov         %ch, %bl
+            mov         hex_digits(%bx), %bl
+            mov         %bx, tx_buf
+            mov         $tx_buf, %si
+            call        print
+
+            pop         %cx
+            push        %cx
+
+            xor         %bx, %bx
+            mov         %cl, %bl
+            mov         hex_digits(%bx), %bl
+            mov         %bx, tx_buf
+            mov         $tx_buf, %si
+            call        print
+
+            pop         %cx
+
             jmp         hang
 
             // gdt16: Protected mode / Unreal mode 16-bit GDT
@@ -513,7 +540,7 @@ pml4_ptr:   .long       0
             // Points to the end of the memory map
 memmap_end: .short      0
 
-tx_buf:     .space      PACKET_SIZE
+tx_buf:     .space      TX_BUF_SIZE
 
             .code64
             // trampo64: Trampoline function to load long-mode segments
@@ -579,6 +606,8 @@ type_table: .byte       0
             // - Sanitizing the memmap
             // - Parsing a config file
 
+hex_digits: .ascii      "0123456789ABCDEF"
+
 .section .data.bootboot
 bootboot:   .ascii      "BOOT"
 bb_size:    .long       128