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  • Multibridge overheating???

    Posted by Jason Maloney on June 5, 2008 at 9:51 pm

    I have a new multibridge pro – one of 11… and after 5 minutes it starts rebooting itself and shutting down the video processing. When connected by USB – the temp reading is over 2400 degrees!! I’m guessing the temp sensor is defective – but does anyone have any ideas or seen something like this?

    Chris Borjis replied 17 years, 11 months ago 6 Members · 6 Replies
  • 6 Replies
  • Kristian Lam

    June 6, 2008 at 3:48 am

    Hi,

    Doesn’t sound good. Make sure you run the latest driver and see if this is still happening (drivers contain firmware updates), and if it does, you should speak to your reseller about an RMA.

    regards

    Kristian Lam
    Blackmagic Design

  • Jason Maloney

    June 6, 2008 at 2:34 pm

    Unfortunately – our vendor ProMAX went out of business last week. Who should I contact at Blackmagic Design to RMA the unit??

  • Joshua Helling

    June 6, 2008 at 5:54 pm

    Hello Jason,

    Give us a yell at our Milpitas Office. 408.954.0500 option 2 will get you through to the support staff. They can handle the RMA directly.

    Sincerely,

    Joshua
    Director of Support
    Blackmagic Design Inc.

  • Will Salley

    June 7, 2008 at 5:16 pm

    On related note – My Multibridge Pro runs hot but still works fine. The problem is the noise created by the cooling fan – It’s considerably louder than the other gear – VTR’s, workstations,etc. Is this normal?

    Is the fan controlled by a processoror is it always on high? I’ve considered putting it in a rack to help reduce fan noise, but I don’t want to restrict the airflow around it since it already runs hot. Since the vents are on the edges of the unit, will this be a problem?

    Primary System Info
    Mac Pro 2×3.2 Quadcore – 10.5.3 – QT 7.4.5 – 6MBram – nvidia8800GT – SATA internal & external storage – Blackmagic Multibridge Pro (v6.7)- Open GL 1.5.6 – Wacom Intous2 tablet

  • Steve Wargo

    June 9, 2008 at 7:41 am

    Did you know that Iron, like most metals, is not usually found in the Earth’s crust in an elemental state.[2] Iron can be found in the crust only in combination with oxygen or sulfur. Typical iron-containing minerals include Fe2O3—the form of iron oxide found as the mineral hematite, and FeS2—pyrite (fool’s gold).[3] Iron is extracted from ore by removing the oxygen by combining it with a preferred chemical partner such as carbon. This process, known as smelting, was first applied to metals with lower melting points. Copper melts at just over 1000 °C, while tin melts around 250 °C. Cast iron—iron alloyed with greater than 1.7% carbon—melts at around 1370 °C. All of these temperatures could be reached with ancient methods that have been used for at least 6000 years (since the Bronze Age). Since the oxidation rate itself increases rapidly beyond 800 °C, it is important that smelting take place in a low-oxygen environment. Unlike copper and tin, liquid iron dissolves carbon quite readily, so that smelting results in an alloy containing too much carbon to be called steel.[4]
    Even in the narrow range of concentrations that make up steel, mixtures of carbon and iron can form into a number of different structures, with very different properties; understanding these is essential to making quality steel. At room temperature, the most stable form of iron is the body-centered cubic (BCC) structure ferrite or α-iron, a fairly soft metallic material that can dissolve only a small concentration of carbon (no more than 0.021 wt% at 910 °C). Above 910 °C ferrite undergoes a phase transition from body-centered cubic to a face-centered cubic (FCC) structure, called austenite or γ-iron, which is similarly soft and metallic but can dissolve considerably more carbon (as much as 2.03 wt% carbon at 1154 °C).[5] As carbon-rich austenite cools, the mixture attempts to revert to the ferrite phase, resulting in an excess of carbon. One way for carbon to leave the austenite is for cementite to precipitate out of the mix, leaving behind iron that is pure enough to take the form of ferrite, resulting in a cementite-ferrite mixture. Cementite is a stoichiometric phase with the chemical formula of Fe3C. Cementite forms in regions of higher carbon content while other areas revert to ferrite around it. Self-reinforcing patterns often emerge during this process, leading to a patterned layering known as pearlite (Fe3C:6.33Fe) due to its pearl-like appearance, or the similar but less beautiful.

    So, at 2000 degrees, your place would have burned to the ground.

    Steve Wargo
    Tempe, Arizona
    It’s a dry heat!

    Sony HDCAM F-900 & HDW-2000/1 deck
    5 Final Cut (not quite PRO) systems
    Sony HVR-M25 HDV deck
    2-Sony EX-1 HD .

  • Chris Borjis

    June 9, 2008 at 4:57 pm

    [Will Salley] “The problem is the noise created by the cooling fan – It’s considerably louder than the other gear – VTR’s, workstations,etc. Is this normal?”

    It will quiet down to near silence if you just leave it on all the time.

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