DFI LANParty UT 915P-T12: Overclocking and Stress Testing

FSB Overclocking Results


Front Side Bus Overclocking Testbed
Processor: Pentium 4 Prescott LGA 775
560 ES (2.8GHz-3.6GHz)
CPU Voltage: 1.425V (1.3875V default)
Cooling: Thermaltake Jungle 502
Power Supply: OCZ Power Stream 520
Maximum CPU OverClock: 225 x 18 (4050MHz) +13%
Maximum FSB OC: 273FSB x 14 (+37%) SATA

Like Asus and Abit, DFI manipulates the PCIe frequency during boot to achieve higher overclocks. The DFI was able to reach a FSB of 273, a 37% FSB overclock, with an ATI X800 XT and SATA hard drive. This is the second highest overclock that we achieved with this hardware in the roundup and is very close to the results achieved with the Asus. Similarly, we reached 225x18 at the stock multiplier, which is close to the record set by the Asus P5AD2 Premium.

Since the issue was the SATA drive giving up at 273FSB, we also ran additional tests with the IDE hard drive - just to see where we could go on the DFI. With an IDE drive, we reached a setting of 302x14 (4.23GHz) at 1.5V before we ran out of CPU. Frankly, we needed much better cooling than we had at those overclock levels, so we made no attempt to run our benchmark suite on a machine at that overclock level. The LANParty UT 915P-T12 actually performed a bit better in our overclock tests than the big brother 925-T2 that we reviewed in our 925X roundup.

Memory Stress Test Results:

The memory stress test measures the ability of the DFI 915P-T12 to operate at its officially supported memory frequency (533MHz DDR2), at the best performing memory timings that Crucial/Micron PC2-4300U will support. The DFI supports both DDR and DDR2, like the Gigabyte Duo in this 915 roundup. However, all benchmarks and stress testing used DDR2 memory. The stress test was conducted running DDR2 at 533MHz (stock 3:4 ratio) with 2 DIMM slots operating in Dual-Channel mode.

Stable DDR533 Timings - 2 DIMMs
(2/4 DIMMs - 1 Dual-Channel Bank)
Clock Speed: 266MHz
Timing Mode: 3:4 (200:266 - Default)
CAS Latency: 3.0
Bank Interleave: Auto
RAS to CAS Delay: 3
RAS Precharge: 3
Cycle Time (tRAS): 10*
*SPD (Auto) timings for DDR2 are normally 4-4-4-12 at DDR2-533. A tRAS setting of 12 is normal. We ran a series of tests to measure memory bandwidth, and found that the tRAS setting made very little difference in the performance of DDR2. The most effective range of tRAS was 8 to 13 for DDR2 on the 925X chipset, so a tRAS of 10 was chosen for benchmarking.

DFI performs without any problems at the best 3-3-3-10 DDR2 timings that worked well on other 915P boards which use DDR2 in this roundup. Since your memory choice is either DDR or DDR2 on the DFI, but not both, it is not possible to run more than 2 DIMMs in this dual channel board. Memory on the LANParty UT 915P-T12 is limited to the memory that can occupy 2 slots in Dual-Channel mode.

DFI LANParty UT 915P-T12: Features and Layout ECS PF4 915P Extreme: Features and Layout
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  • krelian - Wednesday, December 8, 2004 - link

    I been a Intel user since the first Pentium 3 came out now I have a Intel P4 3.0C I refused to spend more money on things I had already bought so I stayed with the 478 socket, seeing as Intel wants me to move to an expensive platform, I say I'll ditch Intel head with the AMD crowd, I'm sure I won't be the only one, maybe legions of intel campers will leave.
  • ChineseDemocracyGNR - Tuesday, December 7, 2004 - link

    About the config I put together in the previous post; does anyone know if the overclock lock on the 915P chipsets apply to lower FSB's too? Could I overclock the 133MHz Celeron D to 200MHz on any 915P motherboard?
  • ChineseDemocracyGNR - Tuesday, December 7, 2004 - link

    The 915P chipset provides good value for the money. For example:

    ECS 915P-A $79
    Intel Celeron D 325J 2.53GHz $88
    Albatron GeForce 6600 128MB $120.50
    or
    Albatron GeForce 6600GT 128MB $190.50
    (newegg prices)

    The processor can be overclocked to 3.6+GHz very easily, much like the Athlon Mobiles.

    That makes a good budget gaming rig, better than anything you could put together with an AMD processor for the same money. So, at least in my opinion, AMD has a better mainstream/high-end processor, and Intel wins the value segment. Who would say?
    --

    I have now read the entire article, and oh boy! Though I prefer to read about socket 754/939 motherboards, this has to be the best motherboard roundup I ever read. Ever. Well done.

    --
    #22,

    thank your fixing it. The typo I wrote about on page 10:
    "The fact that Asus manages a higher OC than more recognized OC boards like DFI and Asus "

    Don't you mean ABIT in the last word there?
  • ocyl - Tuesday, December 7, 2004 - link

    Wesley > Thank you for paying attention to the audio features/components of these motherboards, particularly Dolby Digital Live :)
  • Wesley Fink - Tuesday, December 7, 2004 - link

    #21 - The Foxconn results have been corrected on p.20. Thank you for bringing it to our attention.
  • ChineseDemocracyGNR - Tuesday, December 7, 2004 - link

    A few typos:
    "The fact that Asus manages a higher OC than more recognized OC boards like DFI and Asus "

    page 10.

    On page 20, the "Front Side Bus Overclocking Testbed" table is probably wrong.

    ---

    Good article.
  • LeadFrog - Tuesday, December 7, 2004 - link

    Why does only the socket 915 get a 16mb cache Hard Drive?
  • danidentity - Tuesday, December 7, 2004 - link

    Wes, I said thanks before but I'll say it again, great roundup. We appreciate your hard work, always.
  • danidentity - Tuesday, December 7, 2004 - link

    Live -

    The P5GD2 is expensive compared to most boards, but it includes a ton of stuff, like 8 SATA ports, dual gigabit LAN, on-board 802.11g/b, and on-board hi-def audio with Dolby Digital Live (realtime encoding, like SoundStorm).

    Most 915P boards aren't as close to as expensive as the Asus. The Abit AG8 is ~ $130, equal or cheaper in price than the K8N Neo2.
  • Wesley Fink - Tuesday, December 7, 2004 - link

    #16 - After I did the price analysis today I changed "outstanding value" to "good value". Thanks for the comment about the review being good reading. It is appreciated as a huge amount of work went into this roundup.

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