4 GBs of OCZ Gold XTC PC4000 Running at Rated Speed

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Hi All:

I finally figured out how to get my 4x1 GBs of RAM to run in my DFI NF4 LP
Ultra-D.  I cranked up to their highest values the DRAM drive strength 8
and DRAM data drive strength 4.  The system posted and I am running Prime95
now with the specs below.  It was so stable in the initial tests that I
enabled the DRAM Bank Interleave.

Opteron 150 256x11@1.56 V
FSB 256 @ 1.6 V
LDT 4x & 1.5 V
4x1 GB DRAM 1:1 @ 2.9 V
OCZ Powerstream 520
Thermaltake CL-P0024 with AS5 and two 90 mm Thermaltake A02017

I know all my voltages are high, I will back down on them once I am happy
with my system.

Best wishes,


Re: 4 GBs of OCZ Gold XTC PC4000 Running at Rated Speed

Pete wrote:

Quoted text here. Click to load it

OCZ memory tends to like higher voltages to run at the lowest timings.

It depends on the specific memory you're using, but my Gold XTC DDR400
memory wouldn't run at 2-2-2-5 timings no matter what clock speeds I
used until I found out from the techs on the OCZ forums that I needed to
raise the voltage from default to 2.80 volts or higher. I needed 2.95v
when overclocked to 208Mhz (DDR416).

I felt like a twit after I read about it in the forums that the product
page for my memory specifically states the voltage required:

OCZ EL DDR PC-3200 Gold GX XTC Dual Channel

Gold Layered XTC Heatspreader*
Lifetime Warranty
2.8 Volts

**OCZ EVP (Extended Voltage Protection) is a feature that allows
performance enthusiasts to use a VDIMM of 3.0V 5% without invalidating
their OCZ Lifetime Warranty.

The voltage warranty is good because I needed to get darn close to that
in order to run my x2 3800+ at 2500MHz and the memory at 208MHz, with
the memory bus running 4x 250MHz for maximum speed.

It's Prime95 stable on both cores.

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