SELECT product_id FROM oc_product_option_value AS oc_pov
   
   WHERE oc_pov.product_id = (

                                  IF(
                                  (SELECT MIN(product_option_id) 
                                  FROM oc_product_option_value AS oc_pov2
                                  WHERE oc_pov2.product_id = oc_pov.product_id)
                                  <>
                                  (SELECT MAX(product_option_id) 
                                  FROM oc_product_option_value AS oc_pov3
                                  WHERE oc_pov3.product_id = oc_pov.product_id)
                                  ) AS pr_id
                                  
                                 ) 
 
   
                            )

SELECT oc_pov.product_id as product_id,
                
                   (SELECT product_option_id 
                   FROM oc_product_option_value AS oc_pov2
                   WHERE oc_pov2.product_id = oc_pov.product_id ORDER BY product_option_id ASC limit 1) as product_option_id_min,
                   
                   (SELECT product_option_id 
                   FROM oc_product_option_value AS oc_pov3
                   WHERE oc_pov3.product_id = oc_pov.product_id ORDER BY product_option_id DESC limit 1) as product_option_id_max
   
                  
   FROM oc_product_option_value AS oc_pov 
   
   INNER JOIN oc_product AS oc_p ON oc_p.product_id = oc_pov.product_id AND oc_p.status=1 
   
   
   WHERE oc_pov.option_id=1 GROUP BY oc_pov.product_id

$count = 0;
while ($row = mysql_fetch_assoc($result)) {
  
  
 // print_r($row);
 
 if($row['product_option_id_min']!=$row['product_option_id_max']){
    echo '<p>'.$row['product_id'].'</p>';
    $count++;
 }

}