diff --git a/server.js b/server.js
index 5b57665..865ffc1 100644
--- a/server.js
+++ b/server.js
@@ -261,6 +261,30 @@ app.post('/api/asset/:category/save', async (req, res) => {
     connection = await pool.getConnection();
     await connection.beginTransaction();
 
+    // 3.0.0 CPU, GPU, RAM 부품 마스터 유효성 검사
+    const partsToCheck = [
+      { value: asset.cpu, category: 'CPU', label: 'CPU' },
+      { value: asset.gpu, category: 'GPU', label: 'GPU' },
+      { value: asset.ram, category: 'RAM', label: 'RAM' }
+    ];
+
+    for (const part of partsToCheck) {
+      const val = String(part.value || '').trim();
+      if (val) {
+        const [rows] = await connection.query(
+          'SELECT id FROM hardware_components_master WHERE UPPER(category) = ? AND LOWER(TRIM(component_name)) = ?',
+          [part.category, val.toLowerCase()]
+        );
+        if (rows.length === 0) {
+          await connection.rollback();
+          return res.status(400).json({ 
+            success: false, 
+            message: `입력하신 ${part.label} "${val}"은(는) 부품 마스터에 존재하지 않는 규격입니다.` 
+          });
+        }
+      }
+    }
+
     // 3.0 History Tracking & Auto Field Update
     const [oldCoreRows] = await connection.query('SELECT * FROM asset_core WHERE id = ?', [asset.id]);
     const [oldSpecRows] = await connection.query('SELECT * FROM asset_spec WHERE asset_id = ?', [asset.id]);
diff --git a/src/components/Modal/HWModal.ts b/src/components/Modal/HWModal.ts
index 945cf18..815699c 100644
--- a/src/components/Modal/HWModal.ts
+++ b/src/components/Modal/HWModal.ts
@@ -454,6 +454,27 @@ class HwAssetModal extends BaseModal {
       formData.forEach((value, key) => { if (key !== 'id') updated[key] = value; });
       updated.location = bldgSelect.value;
 
+      // 부품 마스터 기준 정합성 검증 (CPU, GPU, RAM)
+      const checkFields = [
+        { name: 'cpu', label: 'CPU', category: 'CPU' },
+        { name: 'gpu', label: 'GPU', category: 'GPU' },
+        { name: 'ram', label: 'RAM', category: 'RAM' }
+      ];
+
+      for (const field of checkFields) {
+        const value = String(updated[field.name] || '').trim();
+        if (value) {
+          const isExists = this.masterComponents.some(c => 
+            c.category.toUpperCase() === field.category && 
+            c.component_name.trim().toLowerCase() === value.toLowerCase()
+          );
+          if (!isExists) {
+            alert(`입력하신 ${field.label} "${value}"은(는) 부품 마스터에 등록되지 않은 규격입니다. 자동완성 목록에서 선택하거나 부품마스터에 먼저 등록해 주세요.`);
+            return;
+          }
+        }
+      }
+
       if (await saveAsset(this.getCategoryKey(updated), updated)) {
         alert(UI_TEXT.MESSAGES.SAVE_SUCCESS);
         onSave(); this.close(); closeModals();