FSB Overclocking Results

Front Side Bus Overclocking Testbed
Processor: AMD Athlon 64 4000+ (San Diego)
AMD Opteron 170 (Toledo)
CPU Voltage: 1.400V (1.300V default)
Memory Settings: 2-2-2-5 1T - (12x)
2.5-3-3-7 1T - (10x)
2.5-4-4-10 1T - (9x)
Memory Voltage: 2.8V
Chipset Voltage: 2.1V
FSB Voltage: 1.40V
HT Multiplier: 5x up to 240HTT, 4x up to 315HTT
Memory: OCZ PC4800 Platinum Edition
Cooling: Thermaltake Big Typhoon
Power Supply: OCZ Power Stream 520
Maximum CPU OverClock (4000+): 237HTT x 12 (2846MHz) +19%
Maximum HTT OverClock (4000+): 315HTT x 9 (2835MHz) +57%
Maximum CPU OverClock (O170): 270HTT x 10 (2700MHz) +35%
Maximum HTT OverClock (O170): 315HTT x 9 (2835MHz) +57%

Our 4000+ CPU was hampered in overclocking by the lack of additional voltage. This CPU has reached 3.1GHz on 1.475V in past testing. The board definitely has the capability to overclock well, but will not reach its true potential without additional CPU and Memory voltages. At these overclock settings, the system was able to complete all of our benchmark test suites three consecutive times and run Prime95 and SuperPI without issue.

Our Opteron 170 faired better due to the lower voltage requirements of the particular CPU when overclocking. However, this CPU has reached 2.95GHz on 1.450V in past testing. We were able to reach 2800MHz with the 10x280 setting, but we could not complete our test suite due to memory issues. Our memory has been able to reach this HTT setting with 3.0V in the past, but we were limited to 2.8V with this board. At the 10x270 and 9x315 overclock settings, the system was able to complete all of our benchmark test suites three consecutive times and run Prime95 and SuperPI without issue. Overall, the board would make a very good platform for enthusiast level overclocking with additional voltage options.


Memory Stress Testing

Memory stress tests look at the ability of the ASRock 939SLI32-eSATA2 to operate at the officially supported memory frequencies of DDR-400, at the best performing memory timings that the OCZ PC4800 Platinum Edition will support.

ASRock 939SLI32-eSATA2
Stable DDR-400 Timings - 2 DIMMs
(2/4 slots populated - 1 Dual-Channel Bank)
Clock Speed: 200MHz
CAS Latency: 2
RAS to CAS Delay: 2
RAS Precharge: 2
RAS Cycle Time: 5
Command Rate: 1T
Voltage: 2.7V

The ASRock 939SLI32 was extremely stable with 2 DDR modules in Dual-Channel mode at the settings of 2-2-2-5 at 2.7V. We will now install all four available memory slots that result in more strenuous requirements on the memory subsystem than testing 2 DDR modules on a motherboard.

ASRock 939SLI32-eSATA2
Stable DDR-400 Timings - 4 DIMMs
(4/4 slots populated - 2 Dual-Channel Banks)
Clock Speed: 200MHz (800FSB)
CAS Latency: 2
RAS to CAS Delay: 2
RAS Precharge: 2
RAS Cycle Time: 8
Command Rate: 2T
Voltage: 2.7V

The ASRock 939SLI32 was very stable with 4 DDR modules in Dual-Channel operation at the settings of 2-2-2-8, but required the command rate be increased to 2T that is typical in AMD Athlon 64 based systems.

ASRock 939SLI32-eSATA2: Features Test Setup
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  • chesss - Tuesday, March 7, 2006 - link

    quote:

    . We also have to wonder about the inclusion of the AM2 CPU upgrade slot that seems more like a marketing gimmick than something that will be useful in the future.
    hmm I was hoping for a more definite answer from anandtech about this. Anybody else?
  • Gary Key - Tuesday, March 7, 2006 - link

    What type of information are you looking for at this time? We have seen prototype AM2 daughter cards but have not been able to test a card yet due to ongoing engineering changes. Although the daughter card will have direct HT access through the M1695 chipset, we have to wonder how well ASRock will be able to optimize the DDR2 memory performance. The daughter card will also limit cooling options available for the CPU choice. The other variable will be cost and if you are upgrading to AM2 then the additional cost of a motherboard in this category should not be an issue. When all is said and done we still think this is a marketing driven feature and not a viable engineering solution for most users.
  • itroxx - Wednesday, March 8, 2006 - link

    Hello everybody,

    I'am also looking for a new system for mainly video editing. Working with Premiere, MPEG2 encoding and DVD authoring. Thats why I found this review cause the AsRock seems the only board available with SATA2-Raid capabilities right now. But I am not sure about how much SATA2 drives can be attached. Is it possible to attach one SATA2 drive for the system and build a Raid0 of two more SATA2 drives? For what reason are the SATA connector on the rear panel?

    The components I've selected at this point are

    AMD Athlon64 X2 3800+ 2x2000MHz 2x512kB Box E4-Stepping
    Asrock 939SLI32-eSATA2 S939 ATX
    2x 1024 Corsair DDR400
    1x Samsung 80GB SATA2 (System)
    2x Samsung 250GB SATA2 (Raid0)
    256MB PCIe x16 ATI RADEON X1300 PRO

    What do you think of my selection? What type of power suply do I need?
    Is 400 Watt enough?

    thanks a lot and greetings from germany
    Daniel
  • Redrider - Thursday, March 9, 2006 - link

    Although my expertise is much lower than most of the people on this forum, there are a few things I have gleaned from my experience and research. Here are a couple of suggestion:

    You want the best you can get for the money you spend so as for the processor (I am seriously considering an X2 3800+ myself) I would go for the http://www.amdcompare.com/us-en/desktop/details.as...">ADA3800DAA5CD
    which has the E6 stepping which is a newer revision based on http://www.techpowerup.com/articles/overclocking/2...">this article

    Also, I would boost your power supply. You are spending some serious cash and I don't think skimping on the PS is wise. 400W seems pretty small and I would go with big power overhead just to be sure.
  • UJMA - Saturday, March 4, 2006 - link

    The people who invariably buy SLi enabled boards are gamers, and gamers love to OVERCLOCK! unfortunately Asrock have provided this board with a feeble set of voltage options, both the Vdimm & Vcore voltage options are pathetic. No problem, if you're handy with a soldering iron as I'm pretty sure some voltage mods will eventually show up for entusiasts. Probably a better option would be to wait for Epox to launch their new EP-9U1697 GLI mobo based on the same ULi M1697 chipset, you'll get SLi with better overclocking options for a similar outlay!
  • Gary Key - Saturday, March 4, 2006 - link

    quote:

    Probably a better option would be to wait for Epox to launch their new EP-9U1697 GLI mobo based on the same ULi M1697 chipset, you'll get SLi with better overclocking options for a similar outlay!


    We just happen to have that board available for testing now. :)
  • UJMA - Friday, March 24, 2006 - link

    2 great reviews on boards using the ULi M1697 chipset. In the red corner we have the Asrock 939SLI32-eSATA2, in the blue corner we have the EPoX EP-9U1697-GLi ... I'm going for the Epox board.
  • Wesley Fink - Saturday, March 4, 2006 - link

    Keep in mind the Epox is dual x8 using a single M1697 chipset, while the ASROCK is an amazing dual x16. If dual x8 is enough for you though, the Epox should be an interesting board.
  • UJMA - Saturday, March 4, 2006 - link

    I was looking at the Epopx website specs ...

    "Two PCI Express (x16) connector compliant with PCI Express 1.0a"

    http://www.epox.com.tw/eng/products_content.php?ps...">http://www.epox.com.tw/eng/products_content.php?ps...
  • Gary Key - Saturday, March 4, 2006 - link

    There are two physical x16 connectors on the Epox board but they are electrically x8 lanes in SLI mode. The ASRock 939SLI32 has the same physical x16 connectors but electrically they are x16 lanes in SLI mode.

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