Q:
GeIL Recommended Motherboard
A:

GeIL Recommended Chipsets for PC2700, PC3000, PC3200, PC3500 & PC3700 DDR Memory
 

Please Check your motherboard manual/motherboard manufacture to find out which chipset is used for your motherboard


Intel Based Chipset

ALi: M1681, M1671, M1651T.

Intel: 845, 845E, 845G, 845GE, 845GL, 845GV, 845PE, E7205.

SiS: SiS655, SiS645, SiS645DX, SiS648.

VIA: CLE266, P4X266, P4X266A, P4X400.


AMD Based Chipset

ALi: M1687, M1647.

nVIDIA: Nforce, Nforce2.

SiS: SiS735, SiS740, SiS745, SiS746, SiS746FX, SiS755.
VIA: KT266A, KT333, KT400.

Q:
I can't find my question answered in this FAQ section. What should I do?
A:
Email GeIL technical support. You can find our contact information by clicking here

Q:
My GeIL PC3000 DDR memory shows up as PC2700 in some machines and only as PC2100 in my own PC! What is going on?
A:
If you have an AMD based PC and the motherboard supports DDR333, the BIOS will only show up to PC2700 for DDR333 and above. If your AMD motherboard only supports up to DDR266, which is like all current Intel based P4 motherboards, your BIOS will show up to PC2100 only, no matter how fast you set the memory speed. This is because JDEC has not finalize the standard for anything above PC2700 at the time these motherboards were being manufactured. Motherboard manufactures have to test and certify that their boards confirm to JDEC's DDR Speed rating in order to program their BIOS to show the matching "string", eg. PC2700, PC3000 or beyond. As of the writing of this answer, JDEC has just finalized PC3000, or DDR366. Most of motherboards out there will support, officially, only up to DDR333 or PC2700, with Intel based P4 boards supporting up to PC2100 or DDR266.

Q:
So how fast is my DDR running? How come I see there is 333MHz PC2700 DDR and 400MHz PC2700 DDR? I thought PC2700 DDR or any other rating means one certain speed. No?
A:
Motherboard BIOS will show both DDR speed (ie. DDR266) and the PC rating (ie. PC2100). Below is the PC rating to DDR speed in MHz.
PC1600 - DDR200 - 100MHz
PC2100 - DDR266 - 133MHz
PC2400 - DDR300 - 150MHz
PC2700 - DDR333 - 166MHz
PC3000 - DDR366 - 183MHz
PC3200 - DDR400 - 200MHz (Not Standardized by JDEC as June 2002)
There is no such thing as a DDR 400MHz PC2100 memory, as many of you will see when your computer boots up. Motherboards offer these setting and adjustments. BIOS also indicates the right speed in MHz. The memory will be run at the correct speed no matter what the JDEC PCxxxx rating shows.

Q:
I installed GeIL DDR memory module and my Windows won't start every time I boot, and crashes almost immediately even if it does start. What did I do wrong?
A:
On some motherboards, the memory voltage sensor is not accurately calibrated and the "DIMM Voltage" is being mis-represented in BIOS screen. Set/adjust the memory core voltage to 2.7 or 2.8 volts. All GeIL memory modules have passed the torture test at 3v to survive in this PC market filled with all sorts of different grade power supply units and motherboard voltage sensors.

Q:
I set the voltage like you mentioned in the last QA, but my system still doesn't boot. It kept beeping through the PC speaker. What am I doing wrong?
A:
Make sure the memory module is seated down correctly and secured.

Q:
How do I install memory correctly?
A:
Remove the memory from the package. If you are installing SDRAM, you should note the location of the two notches on bottom of the module (the side with the gold colored pins). DDR module has 1 notch a little off the center. Now look inside the memory slot and note the two (or 1 for DDR) corresponding groves. Align the DIMM, then push it in until the locks tabs (on the left and right side of the socket) comes up automatically. If the tabs have to be manually put into place, the memory may not be installed properly.

Q:
I Installed new memory and the system will not reboot even with the original memory installed by itself.
A:
This is due to improper installation. Reinstall memory making sure the module(s) are fully seated and that they are locked in place.

Q:
Windows recognizes both modules separately but not together.
A:
In windows select the start menu, select run, type MSCONFIG, hit ok, select the advanced tab at the lower right corner. Now find the option that states “Limit memory to” and uncheck it. Reboot and the system will reflect the proper amount of memory.

Q:
The 400 MHz DDR DIMM apparentlly seems to work. However, it only woks at speeds lower than 400MHz. What' going on?
A:
In order to set your DDR to 400MHz (200MHz x 2), the CPU's Front Side Bus (FSB) needs to be overclocked. With the CPU-to-DIMM ratio of 1:1 (some motherboards indicate this with the setting of DDR200), the CPU's FSB will have to be 200MHz, making the resulting CPU speed too high for the CPU to boot properly. It is not the DDR module that failed to boot, but rather, the CPU itself. The only way to successfully boot your system with DDR400 setting, is to choose a lower CPU-to-DIMM ratio of 3:4 or 4:5, which will make CPU FSB to be 150MHz or 160MHz respectively. (some motherboards show these 2 settings as DDR266 and DDR333, it's actually the ratio that gets modified) Pleae note that at the time of this QA, only the top model CPU heat sink / cooling fan can properly cool down the CPU at 150MHz FSB.