adamwhite Posted July 3, 2014 Share Posted July 3, 2014 Hello All, i recently purchased The Corsair AX1500i from NCIX Canada , i originally live in Egypt. The reason i bought it from canada is because i couldnt find it on amazon and ncix could ship to me internationally. I have the canadian power cord and i plug it into the surge protector that can take 3 plugs cord cable. I am aware of the OCP in the PSU that its rated at 30A per rail at default unless you use corsair link to unlock the rails or set it to the max 40A however sometimes i experience Shutdowns followed by an automatic re-power. My computer case is old and the psu is mounted at the top so the psu get pretty hot ~@38-45c with 450 watt load and surely the fan dont kick in because its set according to load not the psu temp. so i got around that with fixing the fan to 70% constant. to make sure the psu is in good temps (29-32c) I still face shutdowns even after that and even after unlocking the OCP by unticking it in the corsair link and setting the fan to 70%. The shutdown come after like 4 or 5 hrs of continuous usage. not instantly and while in idle or surfing the web with no load on the PSU. I am wondering if its my surge protector ? i am connecting the PSU and the monitor and the router and a sound system all to it. but its voltage is 2500w max. do i need to plug the psu directly to the wall ? if so , how i can buy the EU cable cord of the AX1500i ? Waiting for the feedback Thanks in advance Link to comment Share on other sites More sharing options...
sandstorm1 Posted July 4, 2014 Share Posted July 4, 2014 from what i know power bars have a built in fuse, if you were pulling more power than it could pump out you would most likely pop the fuse on it. so I dont think that is the problem. as for the power cable itself, it should be a generic computer power plug that any power supply cable should accept. also if you live in Egypt your country has a terrible power grid, so that may be the issue there, not sure if it is bad where you are or not though. Link to comment Share on other sites More sharing options...
adamwhite Posted July 4, 2014 Author Share Posted July 4, 2014 from what i know power bars have a built in fuse, if you were pulling more power than it could pump out you would most likely pop the fuse on it. so I dont think that is the problem. as for the power cable itself, it should be a generic computer power plug that any power supply cable should accept. also if you live in Egypt your country has a terrible power grid, so that may be the issue there, not sure if it is bad where you are or not though. the Corsair AX1500i was an exchange of my old Enermax Revolution 85+ 1250 watt. The Enermax had 8 rails each is set 35-42A MAX OCP. so it gave me headache with cable management to make each card (Evga gtx 780 ti ) powered by two different rails to split the load and avoid OCP. i have two evga gtx 780 Ti in SLI each OCed to 1200 Mhz with voltage pumped to the max. The Enermax after splitting the vga power cables on the rails was fine and no shutdowns anymore. The Cable of the AX1500i is very different than any power supply i saw. even the AX1200i. http://cdn.pcper.com/files/review/2014-04-29/7a-Pwr-cord.jpg http://www.kitguru.net/wp-content/uploads/2014/04/ACC_6516_DxO.jpg Its Very thick cable way much thicker than my old Enermax 1250W Thats a pic from the corsair link with the status: thats after a power supply test by OCCT https://scontent-b-fra.xx.fbcdn.net/hphotos-xpa1/t31.0-8/10496108_806403219383681_7228010859512959965_o.jpg Link to comment Share on other sites More sharing options...
sandstorm1 Posted July 4, 2014 Share Posted July 4, 2014 thickness of the cord should not matter. the plug that goes into the AX1500i is different than standard cords (just googled it) there lies a problem as the standard cords will not work. someone that works for corsair may know where to get the EU version that you need. the AX1500i should be able to power your cards with ease. Link to comment Share on other sites More sharing options...
adamwhite Posted July 4, 2014 Author Share Posted July 4, 2014 thickness of the cord should not matter. the plug that goes into the AX1500i is different than standard cords (just googled it) there lies a problem as the standard cords will not work. someone that works for corsair may know where to get the EU version that you need. the AX1500i should be able to power your cards with ease. yes i saw that the max i can load on the psu is ~ 1000w so 500w is to spare i provided the last pic of my corsair link readings so that anyone could check if everything is ok ? is it normal that on idle i get a reading of 0.000 A on the PCIe's ? edit: I also noticed something now after watching the efficiency it sometimes drop to 69%! See the pic down: http://i.imgur.com/BKO8fm1.jpg Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted July 7, 2014 Corsair Employees Share Posted July 7, 2014 The efficiency measuring in Link is still kind of broke. I wouldn't pay much attention to it. They're supposed to fix it in an upcoming version. I doubt it's the OCP. OCP should latch the PSU off, not cause a reboot. Same goes if the PSU overheats. The PSU would shut off... not reboot. Sounds like it could be a hardware issue. i.e. RAM, etc. But if you want to keep looking at the PSU, try these things: Make sure each graphics card's PCIe connector is on it's OWN CABLE. Don't use both connectors on a single cable. Those are good for lower power cards. And turn the fan on to manual 40% to make sure it stays cool. If it still reboots, make sure you have "automatically reboot" unchecked under advanced system settings. Link to comment Share on other sites More sharing options...
adamwhite Posted July 10, 2014 Author Share Posted July 10, 2014 The efficiency measuring in Link is still kind of broke. I wouldn't pay much attention to it. They're supposed to fix it in an upcoming version. I doubt it's the OCP. OCP should latch the PSU off, not cause a reboot. Same goes if the PSU overheats. The PSU would shut off... not reboot. Sounds like it could be a hardware issue. i.e. RAM, etc. But if you want to keep looking at the PSU, try these things: Make sure each graphics card's PCIe connector is on it's OWN CABLE. Don't use both connectors on a single cable. Those are good for lower power cards. And turn the fan on to manual 40% to make sure it stays cool. If it still reboots, make sure you have "automatically reboot" unchecked under advanced system settings. Well what happen is not a reboot, its a complete shutdown for 1 second (All System Lights goes off and all fans stops even MB leds turn off) and an auto re-power up happen. an OCP behavior to my knowing Ram are ok with memtest. they are corsair dominator gt 2133 mhz The AX1500i comes with 8 PCI-E cables. 4 shorter cables with a single 6+2 pin PCI-E connector and 2 cables are fitted with a pair of 6+2 pin PCI-E connectors. i used those 2 cables which are fitted with a pair of 6+2 pin . so each single cable power up my gtx 780ti. the gtx 780 takes one 1x6pin and 1x8pin so i power it with only one single cable from the power supply. the way i do this because of the cable management. my case is tight and thats the only way to close the left door of the computer case. The Main reason i wanted to buy that PSU that i thought without any tweaking it is one single 125A rail. but i found out that its not and its set by default to 30A per rail and i have to connect the psu to the MB USB and use corsair LINK. Recently i tried the other method. which is ticking all of the OCP and setting them to the max 40A. Till now i dnt see shutdowns as before but i didnt do much testing yet to see if it still happen or not. And about the fan i made it fixed @ 70 %. Although i am pretty sure its not hardware related other than the PSU because it was running fine with my Old Enermax Revolution 1250W PSU. The problem i Had with Enermax is i had to split the cables of the PCI-E on rails so that i dnt face the OCP trigger. because the PSU had 8 Rails each at 35A. so i faced the same problem of cable management and i wanted to change it for a single rail corsair PSU Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted July 10, 2014 Corsair Employees Share Posted July 10, 2014 Well what happen is not a reboot, its a complete shutdown for 1 second (All System Lights goes off and all fans stops even MB leds turn off) and an auto re-power up happen. an OCP behavior to my knowing That's still a reboot. ;) In your BIOS, under "state after power off", do you have it set to on or off? Ram are ok with memtest. they are corsair dominator gt 2133 mhz The AX1500i comes with 8 PCI-E cables. 4 shorter cables with a single 6+2 pin PCI-E connector and 2 cables are fitted with a pair of 6+2 pin PCI-E connectors. i used those 2 cables which are fitted with a pair of 6+2 pin . so each single cable power up my gtx 780ti. the gtx 780 takes one 1x6pin and 1x8pin so i power it with only one single cable from the power supply. the way i do this because of the cable management. my case is tight and thats the only way to close the left door of the computer case. I know what the AX1500i comes with, but I'm asking you to use two cables per graphics card. At least to experiment. If you're not willing to try this, you're not willing to confirm what this problem is. Link to comment Share on other sites More sharing options...
adamwhite Posted July 10, 2014 Author Share Posted July 10, 2014 That's still a reboot. ;) In your BIOS, under "state after power off", do you have it set to on or off? Ram are ok with memtest. they are corsair dominator gt 2133 mhz I know what the AX1500i comes with, but I'm asking you to use two cables per graphics card. At least to experiment. If you're not willing to try this, you're not willing to confirm what this problem is. In the bios "restore AC Power Loss: Power On" Ok I will test two things. First as I said the problem didn't happen yet after ticking the OCP in corsair link and setting it to 40A So I will power my pc up all night today and see what will happen. If it happens again I will try two cables per card. as i really really wish that i dnt have to use two cables per card because i wont be able to close the side door and it will take lots of time cutting the zip ties and re routing the cables again and a mess. Thanks for the support , i will get back with a feedback Link to comment Share on other sites More sharing options...
Yellowbeard Posted July 10, 2014 Share Posted July 10, 2014 If all else fails, try it with your memory manually set to DDR1600. Link to comment Share on other sites More sharing options...
hypascend Posted July 15, 2014 Share Posted July 15, 2014 Just to chip in here as I was searching for a similar issue... I had the exact same issue and it was due to the CPU connection (which is called PCI-E in Corsair Link) was going past 20Amps. So I just ticked the Multi-Rail mode and put it to 25 which gives me about 2 amps of headroom. I think you have already tried this, but make sure your CPU rail has been increased. Regards, Link to comment Share on other sites More sharing options...
adamwhite Posted July 16, 2014 Author Share Posted July 16, 2014 If all else fails, try it with your memory manually set to DDR1600. Just to chip in here as I was searching for a similar issue... I had the exact same issue and it was due to the CPU connection (which is called PCI-E in Corsair Link) was going past 20Amps. So I just ticked the Multi-Rail mode and put it to 25 which gives me about 2 amps of headroom. I think you have already tried this, but make sure your CPU rail has been increased. Regards, The problem dnt happen anymore for a week now with 7 hrs of use everyday. with OC and 2133 mhz ram. its gone after i ticked all the ocp and set all values to 40A. The question is that unticking all rails ocp wasnt working so what if i need more amp more than 40 per rail in future? I bought that psu to function as a single rail. Any confirmation that the next corsair link version going to fix that problem? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.