G.Skill F1-3200PHU1-512NT 512MB PC3200 / DDR400 Memory Review


The introduction ...

This Review of the G.Skill 512MB PC3200 DDR memory primarily shows if high-quality memory modules can
reach higher overclocking results and if inexpensive PC-3200 modules satisfy overclockers even with clearly
more than 200 MHz (DDR400).
Of course two 512 MB modules were tested in dual channel mode and compared with different timings.



Thanks for the support ...

Many thanks for the support with the F1-3200PHU1-512NT 512MB PC3200 modules by the manufacturer G.Skill

Click Here

One G.Skill F1-3200PHU1-512NT 512MB memory module has a current price of 45 Euro (07/2006) and
is of course also available at our sponsors.
In this Review are used two G.Skill 512MB modules.



The supply of the 512MB PC3200 memory modules ...

In these plastic packages are the well protected memory modules:



That is contained in the scope of delivery ...

G.Skill doesn't deliver the memory modules with any manual (like e.g. Crucial), but there're a few tips on
the package how to handle them carefully.
Here's a picture of the unwrapped modules:



The technical data ...

Manufacturer G.Skill
Article number F1-3200PHU1-512NT (sp01661)
Memory 512MB
Package 184-pin DIMM without Heatspreader
Type DDR PC3200
Configuration 64Meg x 64
Error correction NON-ECC
Speed DDR400 (200 MHz * 2)
Voltage 2.60-2.75 Volt
Memory Timing 2.5-4-4-8 (Tcl-Trcd-Tras-Trp)




Benchmark values and test results ...

Let us begin with the maximum timings and the benchmark ratings on different frequencies.
The test results are based on an EPoX 9NPA+ SLI nForce4 Motherboard with an Athlon 64 3000+ CPU
running with a different frequency depending upon reference clock for the different memory benchmarks.
Thus the multiplicator adjustment remains on 9x with all frequencies.
An adjustment for the CPU in half steps would be too inaccurate to get nearly the same CPU frequency for all tests.

Microsoft Windows XP Professional SP2 is used as operating system.
The stability was examined with the software Memtest86 and the SiSoft Sandra Lite 2005.SR3 program is used
for all benchmarks, since it offers extensive adjustments and a fast result comparison.

First the maximum possible frequency of the memory modules was determined in dual channel mode.
Therfor the memory frequency was increased in small steps with a fixed memory timing of 2.5-3-3-8 (2T) and
default memory voltage, as long as the detailed memory test with Memtest86 runs without errors.
This quite long testing time ensures that this frequency works really stable on these modules.

The highest possible frequency with 2.5-3-3-8 (Tcl Trcd Tras Trp) values was stable with 235 MHz.

For example, the Crucial Ballistix Tracer PC4000 modules reached with the same timings up to 265 MHz.
With increased voltages or lower timings it's possible to run clearly higher frequencies, because the
frequency values and timings depends directly from each other.

This highest possible frequency was compared to two adjustments.
On the one hand 235 MHz with SPD values (these are given by the manufacturer in the SPD IC) and on the
other hand 200 MHz with SPD values.
By the way, the "Memory Bus Range" is no benchmark value, but the value is quite simple to calculate by the
frequency and is useful for the benchmark comparison.


Here're the benchmark results:

RAM Range Int Buff'd iSSE2
Memory Bus Range
235 MHz
fix (2.5-3-3-8 2T)
5341 MB/s
7520 MB/s
235 MHz
SPD (3.0-5-5-9 2T)
5254 MB/s
7520 MB/s
200 MHz
SPD (2.5-4-4-8 2T)
4533 MB/s
6400 MB/s


And here's a diagram of the benchmark values:

The result is quite good for PC3200 memory modules.
However, 235 MHz may be already insufficient to overclock processors with locked multiplier and it would be
necessary to reduce the timings at the expense of performance to reach higher frequencies.
To overclock newer AMD Socket A processors, AMD Athlon 64, or Intel CPUs with fixed multi (see workshop area)
it's recommendable to use faster memory modules.
But without overclocking, the choice of PC3200 DDR modules is still resonable, because there's nearly no noticeable
difference compared to High-End PC4000 modules running with 200MHz (internal 400MHz) and SPD autodetection.



Result and general impression ...

The G.Skill F1-3200PHU1-512NT 512MB memory modules are resonably priced and offers good overclocking
results for PC3200 modules.
But high-end overclocker should pay a little bit more, to get more scope for better timings at higher frequencies.



Read on in the hardware test area with several hardware reviews ...



All pictures and article copyright 2006 www.ocinside.de