Before PCSTATS will overclock the PNY XLR8
D22GX85XL-5 for your reading pleasure, we first nned to adjust the memory
to run at (tighter) 4-4-4-12 CAS latency timings. The PNY XLR8 D22GX85XL-5
did not have any issues with this, so we'll see how high
we can overclock with these timings first.
Starting from 800 MHz, the PNY XLR8 D22GX85XL-5 memory
clock speed was increased 20MHz at a time.
At 960 MHz the PNY memory started to give us problems so
the DDR2 voltage was increased from 1.8V to 2.0V. That stabilized things and
allowed the PNY XLR8 D22GX85XL-5 modules to overclock
further. PNY's XLR8 RAM gave us some more problems at 1040 MHz, so power
was increased to 2.1V.
The maximum speed the PNY XLR8
D22GX85XL-5 memory was operate at with tight 4-4-4-12 timings was 1120 MHz (with
2.2V). Compared to PNY's other memory kit, that's not bad at all.
PCSTATS next loosening the memory timings back down to
5-5-5-15 (stock), and started overclocking from 1120 MHz with 2.2V. At 1200 MHz
the PNY XLR8 D22GX85XL-5 memory required a bit more voltage, so that was
increased to 2.3V.
The fun quickly ended, and PNY's XLR8 D22GX85XL-5
fizzled out at a maximum speed of 1220 MHz (with 5-5-5-15 timings and 2.3V). The
memory was fairly warm by this point, and overclocking any further seriously
Increasing DDR-2 memory voltage did not allow the memory
to reach any higher speeds.
Prelude to Benchmarks
The details of how the PNY XLR8 D22GX85XL-5 Performance
Edition memory test system was configured for benchmarking, including the
specific hardware, software drivers, operating system and benchmark versions are
indicated below. In the second column are the general specs for the reference
platforms this pair of PC2-8500 DDR-2 memory is to be compared against. Please
take a moment to look over PCSTATS test system configurations before moving on
to the individual benchmark results.
|PCSTATS Test System Configurations|