DDR Maximizer V.1.2 questions & answers

- When my computer first powers on, my Led Displays on the front panel of the DDR Maximizer read large and sudden fluctuations of the voltages! Is this correct?
DON’T worry about it. This happens because the voltmeter IC calibrates itself when it first receives a voltage. This will take place for about 1 –2 seconds and is NOT related with the stabilized volt circuit that provides the Vdimm on the DDR Ram modules. The output voltage is stable despite what the Led Displays shows for 1–2 seconds.

-When I have my system under full load or even idling, the last digit of the LED display sometimes fluctuates. Is this normal?
Yes, this is normal because the IC from where the LED Display reads the voltages, by default (manufacturing accuracy) has a ±1 last digit (0.0”1”V) tolerance fault.

- I, who happens to possess some knowledge about measuring, modding, etc. and have 2 x 512MB DDR Ram in my computer, I measure with a digital multimeter on the motherboard MOSFETs a voltage drop of about 30mV(0.03V) lower than the readings of the front panel of my DDR Maximizer when I am under full load. For example, I set my voltage to be 3.60Volts, the front panel also reads 3.60Volts but on a Vdimm MOSFET, the multimeter measures 3.57Volts. What is the cause of this?
This happens because of the manufacturing differences of the DDR slots themselves. It is strictly a DDR slot manufacturing problem and it has to do with how firmly the DDR PCB plugs into them and how tight are the slot internal pins in order to fasten firmly the DDR PCB and finally provide the Vdimm voltage without any drop. When a high amount of power goes through them then a small voltage drop always occur. We have noticed that in the worst of cases, by using an X motherboard we experienced a 30mV drop onto the DDR slot pins and in better cases there is a drop of about 10mV. If you measure ON the DDR PCB and specifically at its lower end near the DDR slot pins, you will notice a ZERO voltage drop.

-In which of the motherboard’s DDR slots should I plug the DDR PCB?
DDR PCB is so thin that it can be plugged into any DDR slot of your choice. The wisest thing to do is to plug it in the middle of your DDR Ram modules in order to equally provide voltage and power to them.

- What is the difference between the DDR PCB and the DDR PCB+VTT?
The DDR PCB is for motherboards that can scan, control and supply the VTT voltage by themselves no matter what Vdimm voltage we provide our RAM. The DDR PCB+VTT PCB is designed for the motherboards that cannot scan and control the VTT voltage. It scans and regulates this voltage itself.

- Is my motherboard compatible with the DDR Maximizer?
DDR Maximizer is designed in order to be compatible with most of – if not all – the motherboards that exist. However we recommend you to visit our site’s compatibility list section in order to make sure about this.

- I have done a good installation of the DDR Maximizer and the DDR PCB, but when I power on my computer, nothing happens.
Shut down the computer. Unplug the AC cable from your PSU. Unplug the DDR PCB and its green 4-pin connector. Plug the AC cable at the PSU again and power on the computer. If it works OK then restart the whole installation of the DDR Maximizer from the beginning, reading carefully the user’s manual. If you do that and nothing happens again, power down the computer, uninstall the device and visit our site to check the compatibility status of your motherboard with the DDR Maximizer as mentioned in the user’s manual. If your motherboard is in the list, then please read the details to see if there is a solution about this. If there isn’t a solution about this, please contact us explaining the problem thoroughly and we will try our best to fix it and contact you back with the result. If there is no entry about your motherboard in the compatibility list, then please contact us for assistance.

- I have installed properly the DDR Maximizer and the DDR PCB but when I change the voltage via Dip Switches or via trimmer, I don’t see any change on the front voltmeter!
1. You haven’t connected the cable that connects the DDR Maximizer device with the DDR PCB properly.
2. Make sure that Vdimm is controlled via Dip Switches by the appropriate switch or via trimmer by the same switch (Switch 4)
3. Your motherboard may not be compatible with the DDR Maximizer. Visit our site and especially the compatibility list section so as to be sure about this.
4. If none of the above applies, please contact us for further help.

- I have 2 x 512MB DDR Ram modules and under full load I experience some problems. I think that the DDR Maximizer cannot handle that much load.
Connect the spare DDR Maximizer’s 4pin Molex connector to your computer’s PSU 4-pin Molex as well, in order for it to be able to produce sufficient power.

- I have installed the DDR Maximizer and the DDR PCB but when I power on my computer, the display of it does not read anything.
1. You have not connected properly or at all the 4-pin Molex connectors to your computer’s PSU – you MUST connect at least the one with the 3 color (yellow-red-black) cables.
2. Please visit our site for the compatibility of your motherboard and the DDR Maximizer and see if there is an entry for it. If not, please contact us and we will try to find the problem and seek a solution and we will contact you back.
3. If it is properly connected and your motherboard is fully compatible with the DDR Maximizer then your device has a problem. Please return it to your point of purchase for replacement.