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Specializing in Industrial Controls & Supplies /
Information Technology |
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| << Memory Comparison Chart >> | ||
| Economy Grade | Satisfaction Grade | Professional Grade |
| Application: | Application: | Application: |
| Low Cost memory for price sensitive, less stability concern application. Not suggest for AMD/Intel CPUs higher than 750 MHz. | Both price and stability concern personal application. The CPU speed can be above 750. | Stability concern application such as network, corporation, research, computation intensive application. The CPU speed can be any. |
| Module configuration: | Module configuration: | Module configuration: |
| 4-layer, usually Cas3 or bigger. | 4-layer or newer design memory module board; Cas2 or Cas3. | 4-layer newer design module board or old 6-10 layers boards; Cas2 or Cas3. |
| Receiving qualification: | Receiving qualification: | Receiving qualification: |
| When we received a batch of memory, our tech staffs will randomly choose few pieces as the sample size and run the test. We boot up the memory under ASUS A7V133 under the speed 133MHz. (If your MB has higher noise or higher regulated voltage than ASUS A7V133 has, you may have difficulty to maintain at 133MHZ. In other word, you may experience the compatibility problem.) |
When we received a batch of memory, our tech staffs will randomly choose few pieces as the sample size and run the testing. We boot up the memory under ASUS A7V133 under the speed 135MHz-145MHz. (so that even our MB has higher noise or regulated voltage than ASUS A7V133 has, you still can maintain your system at 133MHZ.) The memory also needs to pass 11 basic procedure tests such as: Parity Test, Adv Address Line test, Pseudo Random Test, Walking Bit Left Test, Inv Walking Left Test, Walking Bit Right Test, Inv. Walking Bit Right Test, Chequerboard Test, Inv. Chequerboard, Block Move Test, Window Mode Test. All the tests mentioned above are performed at higher frequency than PC133 standard. This stricter specification will give enough tolerance to compensate the loss in the memory speed due to the noise generated from your MB or other system components. These quality insurance checking procedures significantly enhance the compatibility for most of MBs. |
When we received the memories, our tech staffs will randomly choose few pieces as the sample and run the tests. We boot up the memory under ASUS A7V133 under the speed 135MHz-145MHz. (so that even your MB has higher noise or regulated voltage than ASUS A7V133 has, you still can maintain your system at 133MHZ.) The memory also need to pass 11 basic procedure tests in order be accepted as this grade. The tests are: Parity Test, Adv Address Line test, Pseudo Random Test, Walking Bit Left Test, Inv Walking Left Test, Walking Bit Right Test, Inv. Walking Bit Right Test, Chequerboard Test, Inv. Chequerboard, Block Move Test, Window Mode Test. All the tests mentioned above are performed at higher frequency, 135MHz-145MHz (stricter requirement than PC133 industry standard), to give the tolerance in case your MB has less favorable working environment. |
| Stress test: | Stress test: | Stress test: |
| N/A | N/A | We also put the sample memory under full load for 72 hours. |
| Compatibility: | Compatibility: | Compatibility: |
| No guarantee. Exchange due to incompatibility is subject to at least 15% restocking fee. | Less compatibility concern (since your MB's noise and above average regulated problem may have been compensated by the higher quality memory module). Exchange due to incompatibility will be subjected to 15% restocking fee. | No restocking fee if it is not compatible. |
| Warranty: | Warranty: | Warranty: |
| If defective, repair or replace the same model or similar. 30 days store warranty after you received. No Neutron extended warranty will be sold with this grade. | 30 days store warranty after you received. You can purchase Neutron extended warranty to get lifetime warranty. | Lifetime warranty. |
| RMA Testing: | RMA Testing: | RMA Testing: |
| Boot up testing using ASUS A7V133. | Boot up and the 11 procedures mentioned above using ASUS A7V133 at the speed 133MHZ. | Boot up and the 11 procedures mentioned above using ASUS A7V133 at the speed 133MHZ. |
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