diff --git a/common.php b/common.php
index 822b320a..850c5625 100644
--- a/common.php
+++ b/common.php
@@ -1,8 +1,25 @@
 <?php
 
-if (!(PHP_VERSION_ID >= 50303)) die('TorrentPier II requires PHP version 5.3.3+. Your PHP version '. PHP_VERSION);
 if (isset($_REQUEST['GLOBALS'])) die();
 
+// Check system requirements
+// PHP
+if (PHP_VERSION_ID < 50304) die('TorrentPier II requires PHP version 5.3.4+. Your PHP version '. PHP_VERSION);
+// Magic quotes
+if (@get_magic_quotes_gpc()) die('Set: magic_quotes_gpc = Off');
+// MySQL
+if (!extension_loaded('mysql')) die('MySQL extension not installed');
+// JSON
+if (!function_exists('json_encode')) die('json_encode() function not exists');
+// getmypid
+if (!function_exists('getmypid') || !getmypid()) die('getmypid() function is disabled');
+// Mbstring
+if (!extension_loaded('mbstring')) die('Mbstring extension not installed');
+// BCMath
+if (!extension_loaded('bcmath')) die('BCMath extension not installed');
+// Intl
+if (!extension_loaded('intl')) die('Intl extension not installed');
+
 ignore_user_abort(true);
 define('TIMESTART', utime());
 define('TIMENOW',   time());
diff --git a/library/config.php b/library/config.php
index 817db930..06de2ca7 100644
--- a/library/config.php
+++ b/library/config.php
@@ -362,22 +362,6 @@ ini_set('display_startup_errors', 0); // показывать ли ошибки
 ini_set('log_errors',      1); // логировать ли ошибки
 ini_set('error_log',       LOG_DIR .'php_err.log'); // имя лог файла (нативный лог)
 
-// Check some variable
-// Magic quotes
-if (@get_magic_quotes_gpc()) die('Set: magic_quotes_gpc = Off');
-// MySQL
-if (!extension_loaded('mysql')) die('MySQL extension not installed');
-// JSON
-if (!function_exists('json_encode')) die('json_encode() function not exists');
-// getmypid
-if (!function_exists('getmypid') || !getmypid()) die('getmypid() function is disabled');
-// Mbstring
-if (!extension_loaded('mbstring')) die('Mbstring extension not installed');
-// BCMath
-if (!extension_loaded('bcmath')) die('BCMath extension not installed');
-// Intl
-if (!extension_loaded('intl')) die('Intl extension not installed');
-
 // Triggers
 define('BB_ENABLED',   TRIGGERS_DIR .'$on');
 define('BB_DISABLED',  TRIGGERS_DIR .'$off');