Currently Browsing: CPU Overclocking

Kayl Cascade making it’s rounds amongst the team.

Thanks to Peter – bob(nz), I’m now the proud owner of my first Kayl Cascade cooler – 2x 1.7HP unit.  This cascade cooling unit was built by fellow Team Australia team mate, Kayl for another team mate youngpro (James) and was then sold to another team mate bob(nz) and now it lands in my hands.

While I am busy with work right now, found some time to at least start up the cascade cooler to check if it survived the trip from South Australia to Brisbane.

Took a few photos and 11.5 minute edited video of the Kayl Cascade unit starting up – quite noisy. At around ~49 seconds into video I tested out the cold bug bypass switch, so you see a momentary increase in temps to -91.5C mark then I turned it off to end up with coldest temps of -111.6C on evap and -49.3C on first stage.

Power-mate wattage meter measured a peak at startup of 2695 watts, and average operating power consumption measured from the wall was between 1775 – 1795 watts at ~247-249 volts mains power. Checked my electricity box and while I have 1 phase mains (10A) – all my fuses show rated at 16A, so nothing tripped the safety switch.

The compressors definitely put out considerable heat starting off at +55C rising eventually to around +88C to +93C. Definitely will need a fan to cool those compressors.

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GOOC 2009 Finals Video

Long overdue, but here’s a video from Team Australia in world finals at GOOC 2009.

dinos22 does 6m20s 32M SuperPi fastest time recorded

Hi guys

I did some testing tonight on LN2 last night and finally managed to grab a screen from latest SuperPi testing. It’s not as efficient as 2:10 CAS7 runs i’ve had at lower clocks but it allows me to bench very high CPU speeds

Here are some details.

dinos22 :)

  • Test Configuration:

    EVGA CLASSIFIED E760 (S610 bios)
    Intel Core i7 960
    6GB 2000GT Corsair Dominators CAS7 DDR3 > Week 22, 2009
    Nvidia 8400GS Graphics Cards
    1000W HX1000 Corsair PSU
    F1EE pot on CPU
    80GB SATA Hard Drive
    Windows XP Pro 32bit SP3

6m20slogo

Xeon W3520 @4877Mhz H20

Been playing with my new Xeon W3520 cpu and managed to break alot of personal best benchmarks for max validation, max uncore frequency achieved, Super Pi 1M, 32M and Pi Fast on DFI UT X58-T3EH8 with just regular water cooling :)

  • Super Pi 32M HT Enabled max = 4677Mhz at 1.488v
  • Super Pi 32M HT Disabled max = 4794Mhz at 1.552v
  • CPUZ Validation HT Disabled max = 4877Mhz at 1.584v
  • Max Uncore Frequency = 4760Mhz !

System:

  • Intel Xeon W3520 3845A935 D0 (Xeon equivalent of Core i7 920 D0)
  • EK Supreme LT 1366 / FESER 480 / MCP655
  • DFI UT X58-T3EH8 04/28 beta
  • HD4870x2 (HIS 4870X2 to Asus Top bios) with ATI WinXP 9.5
  • 6GB Corsair Dominator GT DDR3-2000Mhz 7-8-7-20
  • 750GB Samsung SATAII
  • Silverstone OP1200 PSU
  • Triple boot – WinXP Pro SP3 / Vista Ultimate 64Bit SP2 / Win7 Ultimate 64bit RC

Max Validation @4877Mhz at 1.584v

Uncore Frequency @4645.6Mhz

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Sixes

After a enourmous amount of effort I am happy to announce I am official part of the sixes club… That is below 7minutes in superpi 32m and 7s in superpi 1m!

Achieved on two very different platforms. The 1m result on the enjoyable DFI P45 DDR3 board, accompanied by the Intel E8600.

The 32m result is on the Gigabyte X58-UD5 board, with the help of a nice Intel i7 965 cpu.

i7 920 3836A756 @4769Mhz Air Cooled!

Now that I’ve found my max Bclk limit of 228-230Blck, it’s time to revisit max i7 920 AIR overclocks with HT disabled

Powermate wattage meter = ~280-295 watts idle and peaked at ~461 watts for total system power draw from the wall.

Room temp = 21.5C – 23.5C

System specs

  • Intel Core i7 920 3836A756
  • Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120x38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
  • DFI LP UT X58-T3EH8 R.A51 – 01/06 beta bios
  • 128MB Gainward FX5200 PCI
  • 2x1GB Corsair DDR3-2133C9DF Dominator + 1GB G.Skill PC3-12800HZ (3x Samsung HCF0)
  • Ram cooling: 3x 60x25mm Sunon 23.5cfm Maglev fans
  • 80GB Hitachi 7K80 SATAII
  • Pioneer DVD-RW
  • 1KW Corsair HX1000 psu
  • WinXP Pro SP3 full nLite updated hotfixes / Windows 7 beta dual boot

i7 920 3836A756 @4769Mhz at 1.59375v bios


Max screen capture capable @4680Mhz at 1.5875v bios

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Single Stage cooled Core i7 965 @5112MHz (-40C), 4965MHz 32M SuperPi

New toy is in the house > Intel Core i7 965

I tested it quickly on Single Stage to get an idea if its any good…Oh boy…i like it a lot :D

Test Configuration:

* Gigabyte X58-UD5 F4f bios
* Intel Core i7 965es 3831A457
* 3GB 1866MHz CAS8 DDR3 Corsair Dominators (TR3X3G1866C8D)
* PCIe nVidia 8400GS
* 1000W HX1000 Corsair PSU
* SS Phase by C-BuZz
* 160GB IDE Hard Drive
* Windows XP Pro 32bit SP3 Lite

Ambient Temps: 22.5-23.3C
Evap temp idle: 41-41.6C
Evap temp load: 39.8-40.5C

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