Issue with new F1-3200PHU2-2GBNS

[Hardball]

I just purchased a set of G.Skill memory for an older system and I am having problems getting the system to run at the settings it had before I installed the new G.Skill.

Model of the motherboard:Gigabyte GA-8INXP Intel socket 478
Model of the memory:F1-3200PHU2-2GBNS
Model of the CPU:Intel P4 2.66GHz (20 x 133fsb)

This motherboard has 4 dimm slots that support up to 4GB memory. The memory I replaced was a total of 1GB, which was 4 256MB sticks of PC-3200 DDR400 Low Latency 2-2-2-5 memory. I ran a mild overclock of 3GHz (150fsb, up from the stock 133) for several years with no issues. I wanted to up my memory to 2GB and purchased the G.Skill.

The problem is that the G.Skill will not run at the 150fsb setting. It will not boot into Windows XP at that setting and I have to go back into bios to change back to 133 to get it to work. CPU-Z states that the timings on the G.Skill at the 133fsb speed are 2.5-2-2-5. This memory should easily do a 150fsb as it is rated to do 200MHz fsb at 2.5-3-3-6 @ 2.7v I ran Memtest on each stick and as a set and came back with no errors. Any thoughts on what I can do? I don't want to return the memory, but I need it to do the 150fsb.

[Tradesman]

Make sure you have the latest BIOS and with 4 1 GB sticks will need to raise the NB voltage, if no joy there may need to loosen the timings a bit

[Hardball]

I only have 2- 1GB sticks installed, not 4. The 4 sticks, 256MB/stick, were the old memory. The G.Skill is a 2 stick set. With the previous 4 stick setup I actually did not need to raise the NB voltage. Any ideas why this G.Skill won't do the 150MHz fsb?

[Tradesman]

Misread it, but still with 2GB installed, it will still require more NB voltage than 1GB did

[Hardball]

No way to put more NB voltage in. There is no setting for it in the bios. Only dimm, agp, and cpu voltages.

[Hardball]

Is the G.Skill memory I have Low Density or High Density modules?

[GSKILL TECH]

Low Density, did you raise DRAM Voltage 2.75V?

Thank you
GSKILL TECH

[Hardball]

Yes. I tried both 2.7v and 2.8v. I have a family member with an older system also, and they have the exact same memory. Their system has an Asus P4B266 mobo, an Intel P4 1.6GHZ (16x 100fsb), and the same G.Skill ram. On their rig today, I set the fsb:memory strap to 3:4, set the fsb to 113 which made the memory a 150fsb and it ran fine. It appears that the G.Skill modules will run at 2.5-2-2-5 timings up to a 133fsb and after that go to the 2.5-3-3-6 that they are rated for. That is what they were at the when running at 150fsb. Seeing this leads me to think that I have a bad set of G.Skill and need to exchange them for another pair to try because they will in fact run at a 150fsb, but not mine.

[Hardball]

How can you determine if the SPD on a set of memory modules is functioning properly? If it is not, what kind of issues would come out as a result?

[Tradesman]

The mobo's rated to 266 DRAM so running 400 sticks might not work with more voltage or possibly dropping DRAM speed and tightening timings