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Thread: DEEPCOOL DQ 850-M-V2L & CWT GPX

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    Have it for review, somewhere next month. GPX REV.A

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    Quote Originally Posted by crmaris View Post
    Have it for review, somewhere next month. GPX REV.A
    So is it a GPU successor?



    By the way, their fan choices are somewhat disappointing for this good platform.
    How much does it cost for upgrading from sleeve to rifle?

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    Quote Originally Posted by rgbodosk View Post
    So is it a GPU successor?

    How much does it cost for upgrading from sleeve to rifle?
    For fuck's sake....

    IT'S NOT A GPU SUCCESSOR!!!!!!!

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    I have tested Deepcool DQ-850M-V2L.https://www.fcpowerup.com/deepcool-dq-850m-v2/
    It is a full-bridge LLC resonant topology. GPX is written on the PCB, but GPU is written on the DC-DC card.

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    Quote Originally Posted by fantastic View Post
    I have tested Deepcool DQ-850M-V2L.https://www.fcpowerup.com/deepcool-dq-850m-v2/
    It is a full-bridge LLC resonant topology. GPX is written on the PCB, but GPU is written on the DC-DC card.
    Nice, keep up the good work !

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    Quote Originally Posted by fantastic View Post
    I have tested Deepcool DQ-850M-V2L.https://www.fcpowerup.com/deepcool-dq-850m-v2/
    It is a full-bridge LLC resonant topology. GPX is written on the PCB, but GPU is written on the DC-DC card.
    Yes. DC to DC card is same as GPU.

    They had to make it full bridge because the shitty Silan PWM MOSFETs they use are so cheap, they wouldn't work in a full bridge arrangement.

    Believe it or not, using FOUR Silan MOSFETs in a full bridge still costs less than using two Infineon.

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    Quote Originally Posted by Jon Gerow View Post
    They had to make it full bridge because the shitty Silan PWM MOSFETs they use are so cheap, they wouldn't work in a full bridge arrangement.

    Believe it or not, using FOUR Silan MOSFETs in a full bridge still costs less than using two Infineon.
    Hmm... Interesting. What makes Silan FETs s*** anyway? Is it just the price or is it because the failure rate/MTBF sucks? Or is it just some japcaps-kind of labeling?

    I believe some cheapo (like H110 or A320 kind) Mobos also use Silans, do they suck per se as well?

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    Quote Originally Posted by efficient View Post
    Hmm... Interesting. What makes Silan FETs s*** anyway? Is it just the price or is it because the failure rate/MTBF sucks? Or is it just some japcaps-kind of labeling?
    What makes some plastic bowls melt in the microwave, but a good quality Rubbermaid lasts forever? They're both plastic.

    Let's put it this way.... I have two dead GPX PSUs here. Both of them had Q2 explode when the mains was dropped to <100V. Typically, the bridge rectifier will die because it's undersized or may fry after a while because there's no heatsink. But not these guys! As soon as we hit <100V.... BLAM! They blew up. Even if spec is 100V-240V, a PSU shouldn't blow up. It should at least turn off.

    They're just really poor quality with absolutely zero margin. Infineon costs four times + more than Silan, but I'll spend that extra money any day of the week.

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    Here's a side by side comparison of the 650W's if you want to go out and look up the data sheets. I have the other wattages as well that I could paste in later....

    COMPONENT GPU 650W GPX 650W
    AC ON/OFF Switch R9D8KKFT00F2-HL 250V/16A PS8A-2-B1B3-1H 6A/250V
    Input Fuse 215 OR 221 Series 250V/12A 215 OR 221 Series 250V/10A
    AC Bridge Rectifier GBU1006 10A/600V (x2) GBU1006 10A/600V
    Inrush Thermistor SCK15037MGY003 7A/3Ω SCK13055MGY021 5A/5Ω
    Inrush Bypass Diode 1N5406 600V/3A 1N5406 3A/600V DO-27 VF1.0MAX
    Relay OJE-SS-112HMF 250V 10A GQ-SH-112LM1 10A/250VAC 85℃
    Bulk Capacitor 330uF+330uF 400V 390uF/400V LP ∮25*45mm
    PFC Controller IC CM6500UNXIS CM6500UNXIS SOP-14
    PFC Magnetic Core QPR27 QPR-29
    PFC Mosfet IPA60R190P6 600V/20A (x2) GP18S50GN220FP 18A/500V (x2)
    PFC Rectifier QH08TZ600 STTH8S06D 8A/600V
    PFC Capacitor 105K 105K
    PWM Main Transformer PQ3535 ERL-35
    PWM Controller IC CM6901XIS CM6901X
    PWM Magnetic Core QPR20 QPR20
    PWM Mosfet IPA60R190P6 600V/20A (x2) SVF13N50F 13A/500V (x4)
    +12Vdc Output SR mosfet IRFH7004PBF (x4) FTG014N04SA 100A/40V (x4)
    +5Vdc Controller IC APW7159C APW7159C
    +5Vdc Mosfet EMB04N03HR & EMB02N03HR (1 each) SPN3006T252RGB 80A/30V (x2)
    +3.3Vdc Controller IC APW7159C APW7159C
    +3.3Vdc Mosfet M3006D SPN3006T252RGB 80A/30V
    5vsb Controller IC OB5282A TNY287PG DIP-8C
    5vsb Magnetic Core EE-19 EE-19
    5vsb Mosfet 3N60L N/A
    Protection IC (UVP, OVP, OCP) WT7502 ST9S429-PG14 DIP-14
    Last edited by Jon Gerow; 07-09-2020 at 08:35 PM.

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    Isnít the GBU806 an 8A rectifier? You have it listed as 10A

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