OC Report :: OCZ Reaper HPC 2x1GB PC9200 C5
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OCZ is not going to be a stranger to anyone reading this but these new modules that I am reporting on today may not have crossed everyones eyes. The Reaper HPC series is OCZ Technologies latest line of performance memory with an enhanced heatsink to help keep the memory running cool. The OCZ Reaper HPC comes in four flavours at the time of writing this report...2x1gb PC6400, 2x1gb PC6400 EB Edition, 2x1gb PC8500 and 2x1GB PC9200 kits. I will be clocking the PC9200 2GB kit.
I believe in full disclosure so I won't be hiding the fact that these modules are a review sample sent to me from OCZ. I have never been sent anything but random samples equating to average end-user results in the past and believe in the results as a single sample out of many. Here is a brief look at the specifications of the all black modules.
Code:
* Part #OCZ2RPR11502GK
* 2GB kit (2 x 1024MB)
* 1150 DDR2 5-5-5-18 @ 2.3 Volts
* 2x 240-pin DDR2 DIMMs
* Non-ECC, Unbuffered
* 2.35V EVP
* EPP-Ready
* Reaper HPC Heatsink
* Lifetime Warranty
The availability of this kit is a little unkown but I have found them in stock at MWave for $295USD which isn't too bad. I will let the photos prelude the discussion on the heatsinks.
Package:
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OCZ is pretty standard in their approach utilizing the clear blister pack and a cardboard insert to provide the visuals. The first thing I noticed about the plastic package that the modules came in was the fact that there were four spot welds to keep the package together. This will make it easy to identify if your modules have been "pre-tested" prior to you buying them from a store which packages in the past were unable to accomplish.
The Sticks:
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Everyone has a different opinion on just how much heaspreaders actually do for the memory. OCZ has been very active in evolving what has become a standard in high performance memory, heatspreaders. The Reaper HPC series clearly sports a new design in which a heat-pipe has been used as a heat conduit from the lower panels that contact the ICs, hence the name Heat Pipe Conduit (HPC). The heatpipe is designed to transfer that heat away from the side panels up into the aluminum block above where ambient air dissipates the energy.
Are these new heatspreaders a gimmick? It is hard to say, but I can say that the all black design certainly looks good and the contact the heatspreaders make with the ICs appears to be very good. Based on the last two photos, I believe OCZ is using a thinner thermal interface material on the ICs instead of the standard thick grey pads. This new material appears to be similar to the same method Corsair has been using of late where the heatspreader is actually cured to the ICs with heat making heatspreader removal difficult without damaging the modules.
The P5B-Dlx:
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I will be using my trusty P5B-Dlx (rev 1.03) for the overclocking and as you can see, there are a few modifications to this board so keep that in mind when going over results. The first thing I have to point out is the fact that my Hipro-Tech.com DDR Maximizer is MIA. When I started out with this memory kit I was using my DDR Maximizer (3-3-3-8 testing was done with the Maxi) but the results were not what I was anticipating when I got to the CL4 testing and tried without the Maxi to find much better results. Clearly there is an issue with my Maxi but I didn't have time to figure it out in time for this report so you get standard board powered numbers today.
Here is a complete list of hardware that I used for the testing:
Code:
Intel Setup:
MB: Asus P5B-Dlx Wifi (vcore / vmch mods)
CPU: Intel C2D E6600 (L629B383)
CPU Cooling: Thermalright Ultra-120
GPU: PowerColor X1650 Pro
NB Cooling: Asetek Waterchill
PSU: Silverstone Zeus 560W
HD: Seagate SATAII 80GB 8MB NCQ
OS: Windows 2K3 Server
Ambient Temperature: 22-23C
A couple notes before we see the numbers. The voltage listed in each screenshot is measured with a DMM from the VDIMM output coil. My board tends to overvolt it appears and is usually .06v above what I set in the BIOS.
Second, I am only interested in dual 32M SPi stability for my overclocking reports. I have found dual 32M stable with tight secondaries usually means Prime / Win Memtest stable within a few MHz at the same voltage. Don't confuse dual 32M stable with 24/7 stable but it is pretty close most of the time.
3-3-3-8:
Intel P965x:
Click link for full size screenshot...
345MHz :: 2.00v | 360MHz :: 2.10v | 375MHz :: 2.20v | 390MHz :: 2.30v | 405MHz :: 2.40v | 415MHz :: 2.50v
I was almost prepared for these type of numbers at 3-3-3. The last set of PC9200 modules I received from OCZ were very much the same. They didn't clock well at all at 3-3-3 or 4-4-4 but took off like a cannon at 5-5-5. Based on the same feeling I got from these Reaper HPCs, I don't expect anything fantastic in the next set of numbers.
4-4-4-8:
Intel P965x:
Click link for full size screenshot...
455MHz :: 2.00v | 480MHz :: 2.10v | 500MHz :: 2.20v | 525MHz :: 2.30v | 540MHz :: 2.40v | 555MHz :: 2.50v
And again, these PC9200 Reaper HPCs did not surprise me with only average 4-4-4 clocking ability. There was nothing to be done to get these sticks to run 4-4-4 any better. The secondary timings seemed to settle in at 9-9-8-8-8 in the bottom half of the Memset window. Let's now see if 5-5-5 acts how it is suppose to...
5-5-5-8:
Intel P965x:
Click link for full size screenshot...
565MHz :: 2.00v | 590MHz :: 2.10v | 610MHz :: 2.20v | 625MHz :: 2.30v | 650MHz :: 2.40v | 660MHz :: 2.50v
This is where things got silly. Prior to this kit of memory, I was under the impression my motherboard was my dual 32M stability limit at DDR1280. That has now been proven wrong. For the first time I have a dual 32M over DDR1300. Like I said earlier, this kit is very much like the PC9200 Flex XLC modules that seemed to favour 5-5-5 timings over the others. I then figured, since I was voltage limited and board limited for dual 32M stability...why not try some single stick 700MHz hunting.
700MHz club:
Intel P965x:
Click here for...validation
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This isn't the first set of OCZ on the 700MHz chart kept here at XS but it is the second. I wasn't really expecting to get to 700MHz with only 2.50v measured VDIMM but clockgen kept going and going. I was obviously only able to get validity and not even a screenshot, but a 700.4MHz CPU-Z valid still counts to get into the club ;)
