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Recent content by Ominence

  1. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    no worries mate, happy to have been able to assist you some. it was curious re the 4pin molex at the bottom of the board. it looked really suss given that you had the pcie riser cables so close to that connector and it did not appear that there was any cable pathing/routing allowance there to be...
  2. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    ah, blower fans, love them, automatic case heat ejectors!! i would love to have a 3 slot version, vapo chambered off course.
  3. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    not that OP was using a benchmark PSU but hopefully reverting to at least the stock 24pin cable may give better unburnt results due to firmer connector fit and correct AWG usage.
  4. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    i like the commentary in the manual there- for stability connect moar connectors!
  5. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    it's funny when these connectors are not always keyed on some modular psus and to make matters worse, have different wiring on the psu end for the different terminals! really bad for unsuspecting people who may end up erroneously connecting the pcie to the cpu and vice versa- psu side. if you...
  6. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    Molex ver. good for 8amps apparently 18AWG. Microsoft Word - PS-8981-4M4P Rev D1.doc (molex.com) it's interesting that 8981 references back to 8980 series. the poor molex is planned for obsolescence! i had an AX1200i fail on me just over 12months after use. i hope corsair quality has improved...
  7. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    6pin pcie is only rated to 75w. i was under the impression AMP connectors are good for 130w, 18AWG. Anyway, they can handle a ridiculous amount of power when correctly configured. 1-480424-0 : MATE-N-LOK Rectangular Power Connectors | TE Connectivity 794236-1 : MATE-N-LOK Rectangular Power...
  8. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    very likely that has been the issue with your nice setup. going for aesthetics, you have to be very careful with all technical aspects too;) just FYG, my FD flex is rated to 40w 3.33A. Flex VRC-25 _Product sheet (fractal-design.com) cable run length would be an issue for you though. not to be...
  9. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    GreenWithEnvy—Linux Apps on Flathub reducing voltage will just make the system potentially less stable. power is a function of V and I. between them, they can still get to the hypothetical 450w, stability permitting. you should try to work on the much simpler power limit settings if the Linux...
  10. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    you can always use a U wire (glued in, and insulated on the exposed part) to bridge the stock 24pin on PSU2 and before you fire PSU1, fire up PSU2 1st after the bridging.
  11. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    Connect 2 PSUs to 1 Motherboard? — Quick How-To Guide - YouTube please ensure that the AWG of the bridging tool is correct too!
  12. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    that's were you check your tailored workload and ensure that the frequency doesn't exceed the manageable power draw, if you're having issues with the system, even if it has to be stock or below as the OP recognises. the 3090 is only rated for 1.395Ghz base and 1.695Ghz boost. having said that...
  13. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    if pumps and fans are not directly running off the MB, then that aspect can be discounted as the one causing the issue. i would still suggest getting 6 of the 8-pin pcie power connectors on PSU2 to get the max 900w off PSU2. as you mentioned next that the 3090 can pull a transient load of 400w...
  14. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    325w x4 should be an absolute non issue just on the GPUs. the MB should be able to handle combined 100w on the PCIe quite easily. nvidia load balances how much draw can occur over PCIe and the algorithm is quite conservative.
  15. O

    HELP! Quad RTX 3090, x2 EVGA 1600 G2: Burnt out +12v on MoBo power connector

    for such an expensive system, i would suggest using stock supplied power cables. your sleeved cables may look good but might be 'cheap' on the inside 'core' meaning AWG. please ensure that you are not overloading too much current draw on your cooling setup directly from the MB 4 pin PWM...
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