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I agree. Im having a hard time finding anything spec for amp draw. And most of what I am reading indicates that this pwer supply should be sufficient for x2 r9 390. yet i did see an article referring to 50 amps for a single r9, so I am with you that in crossfire, we maybe requiring 100 amps, and this PSU is rated at 83 i think it was, maybe 87. Maybe a bad connector? I am no expert. How does crossfire operate? Is it indeed trying to fire BOTH cards at same time, thus causing the PSU OCP to trip ( it would appear soβ¦) I am not convinced this psu is insufficient. Faulty maybeβ¦
sorry was off reading, Honestly I havent looked right when I start the test, but they are normally all green, Ill check that out, prolly gonna log for the night, I really appreciate the attention, Ill update ya as to what I discover
To answer your question about Crossfire and SLI-configuration setups, they draw power at the same time from the PSU. The rails are basically a cluster of wires. Youβve got +12v rails, +3.3v rails, +5v rails, etc. Now if youβve properly setup your Crossfire configuration, everything will run smoothly with no hiccups. Your PC is not shutting off, but rather rebooting when youβre running whatβs called a βstress testβ. Have you checked to verify itβs not rebooting due to a BSOD? If your PC is not setup to create dumps of BSOD logs, do so and run the benchmark again to see if a minidump BSOD file is created. If so, you can upload it and weβll take a look at it to verify whatβs causing the issue (if any).
Just making sure here you do have your 6/8 pin power connectors hooked up correct? I am still trying to find a monitor that reports voltage on from psu,that is compatible with win 10. Also from my research your your psu would need at least 30 to 42 amps just for one vid card from the 12 volt rail and as i remember if you cross fire/sli you need to almost double your power to run these and at min requirements of 700/750 watts per card,also it i have seen some gamers recommended 2 12 volt rails/high amps in a psu for a high-ish end card to work correctly. I looked at one of your post and those voltages looked a little quirky. Have you check your voltages from the bioβs?
EDIT: what are the specβs on the core clock,also is the model and name of the gpu complete? I canβt find the specific specβs on this r9 390 G1β¦the G 1 is throwing things off in my research.
Ill start looking into bios and doing some research on that, its a bit over my head at the moment. This is my first high endish build. I am also wondering if win 10 upgrade from win 7 may have some issues. Right now I have a ghost image in lower right corner of monitor saying activate windows, go to settings to activate. I think its a remnant of the win 10 pop out. I have ordered a copy of win ten should be here tomarrow in case I need to wipe and re install sighs
Jmarket, thank you for info on power draw. I will look into the dump logs just to make sure. I do see the graphics come up right before it reboots, so it isnt a βtrueβ blue screen but still maybe happening. it seems when it happens the -12v 3.3v and 5v lights on back of psu go out first, it happens so fast, maybe my eyes but that is hows it seems. So I have my work cut out for me today, I am taking the day offβ¦
Thank you all for helping me. Vger do you work with viruses and removal? I think we may have worked together before on old site? I know you helped so many that I was prolly a blink, my name on old site was Big Papa Daemonβ¦
I believe stock core clock on these gpu is 1024 or 1025 mhz I believe they ship slightly over clocked. Is that what you were asking or am i just thowing around numbers LOL, googling voltages in bios nowβ¦
as to the pin connectors. This is prolly too much, but I actually traced the wire to the first set of 6/8 pins and plug them into right side of card and first slot of psu on card one. the left side recieved the pins at end of wire. I did this exactly the same on other card from slot 2 on psu. same trouble. I then reversed them (mid pin to left end pin to right on cards. It was a long shot, but i thought maybe they have to be plugged up exactly the same. Silly yes, but I do AC work and often have communication problems from something as silly as that. It was worth the two minutes to check it out, but no dice. Who is shocked? lol
the power cords are/were plugged in. I just made sure each card was plugged up EXACTLY the same.
CPU Vcore 1.248V
CPU VCCSA 1.056V
CPU VCCIO 0.979
DDRVTT channel A/B Voltage 0.594V
DRAM channel A/B voltage 1.200V
DDRVPP Channel A/B Voltage 2.508V
+3.3V 3.264V
+5V 5.010
PCH Core 1.056V
+12V 12.096V
CPU VAXG 0.012V
CPU Temperature 43 C
system temp 37 C
2nd system temp 37C
PCH temp 47C
CPU fan speed 0
CPU OPT fan speed 1080rpm
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