abn505 Posted February 14, 2014 Share Posted February 14, 2014 Hey Jonnyguru, Well, I have changed my mind and will probably go SLI with a second Gigabyte 760GTX-OC card. What are the chances I would hit the extreme conditions that would make my RM850 to kick out if at all? Please see my system specs for more details. I have added a AF120LED fan on the bottom where the HD cage used to be on the left. I could put more fans in, but I am thinking four is enough for my 750D case. Thanks I don't think it is. That's why I suggest running Furmark and Prime95 at the same time. Either way is fine. Looking at your system specs, I'd say your power requirements are so low that your PSU fan may never turn on. Not unless you put a second graphics card in there. Link to comment Share on other sites More sharing options...
Administrators Technobeard Posted February 14, 2014 Administrators Share Posted February 14, 2014 I would really like to exchange the RM850 for a second AX860 and I am willing to pay the difference if there is any. I live in Germany, how long will the whole procedure take? Downtime means lost money for mining rigsWe don't have an upgrade program - the replacement will be the same model. We do have an advanced RMA though so there's no downtime. Link to comment Share on other sites More sharing options...
DAM1987 Posted February 15, 2014 Share Posted February 15, 2014 i really hope this dont sound mean at all. im just giving you a warning. there will be downtime you are in the EU much like me and ive been waiting, im still waiting for my replacement RM750 since the 13th of january.. Link to comment Share on other sites More sharing options...
Neo07 Posted February 16, 2014 Share Posted February 16, 2014 I have a PSU with below 1341 and I will RMA now. Just wanted say, for all miners out there using the RM850 as a secondary PSU, it is dangerous and your hardware will burn as soon as your gpus are in full action and the secondary PSU turns off. I took the RM850 as a secondary unit to save 30€ in comparison to the ax860 and I regret my decision. I would really like to exchange the RM850 for a second AX860 and I am willing to pay the difference if there is any. I live in Germany, how long will the whole procedure take? Downtime means lost money for mining rigs Sell the replacement you receive and buy an AX860 Link to comment Share on other sites More sharing options...
abn505 Posted February 19, 2014 Share Posted February 19, 2014 Any thoughts anyone? Thanks Hey Jonnyguru, Well, I have changed my mind and will probably go SLI with a second Gigabyte 760GTX-OC card. What are the chances I would hit the extreme conditions that would make my RM850 to kick out if at all? Please see my system specs for more details. I have added a AF120LED fan on the bottom where the HD cage used to be on the left. I could put more fans in, but I am thinking four is enough for my 750D case. Thanks Link to comment Share on other sites More sharing options...
JohnnyFire Posted February 23, 2014 Share Posted February 23, 2014 Ticket Number: 6426405 same fan problem with the 1335 lot here. please take a look and help me if you may! Link to comment Share on other sites More sharing options...
alexynow Posted February 25, 2014 Share Posted February 25, 2014 24 February I bought PSU Corsair RM850 with serial number starting with 1341 In your forum I see some issues with this PSU http://forum.corsair.com/v3/showthread.php?t=123484 But it's not clearly understand if my PSU has this issue as one says 1. "The affected units are in lot codes < 1341 (the first four digits of the S/N.) " That is less than 1341 and other says 2. "1341 and below have one thermistor while serial numbers greater than 1341 have the two (separate one for the fan)." My serial number is starting with 134176. I'm planning to overload my PC but keep it quite, should I replace my PSU ? Link to comment Share on other sites More sharing options...
Yellowbeard Posted February 25, 2014 Share Posted February 25, 2014 1341 is fine as stated multiple times in this thread. Link to comment Share on other sites More sharing options...
Leadshy Posted February 27, 2014 Share Posted February 27, 2014 I should have really paid closer attention to this thread last night. So having this issue to deal with is partly my fault I bought it. Lot number 1338 here- I'll trust Mr Guru he seems like a smart cookie and keep mine, as I doubt the extremes will be met to trigger the problem. Though I was surprised when I seen the lot number on the one I bought this afternoon after Corsair was aware of the lots affected? Why where they left on the shelves? Maybe I have a long lost romantic notion of Capitalism and value - and companies today valuing a consumers hard earned money and I'm out to lunch? I chose the RM-750 as I liked the looks of it,seems functional and there was a rebate. I was in the city and could save some shipping and I had some faith that the gremlins, even the gremlins that turned out to not be a surprise to the producer of the unit wouldn't come to visit my purchase. Hopefully Corsair will be a little more shiny in my eyes the next computer I choose to build. And to the higher echelon of Corsair maybe farther removed from the trenches. I'd be careful those attitudes on here that may or may not have reason to be crappy towards your brand name don't eventually earn a big I Told You So Sucker when they passionately rant at a misfortune that to more than not turns out to be a regular occurrence, instead of a fluke. No matter how many units you sell. I'm still neutral on the matter- barely. Right to me ,when it comes to entire batches of problematic product starts coming into play before the consumer reaches the cash register with it. Link to comment Share on other sites More sharing options...
tonfontes Posted March 14, 2014 Share Posted March 14, 2014 Recently I bought a RM 850, arrived yesterday at my house. After his arrival went searching further, and found this topic. Even called the same, because my motherboard has not arrived yet. I wonder if this problem happens with any number less that 1341 series, or if you are just a few. My even though I bought four months after the recall, come with serial numbers starting in 1338 ... At the moment I have a HD 7950, also new, but I intend to make her Crossfire. It's been 40 days that I'm no PC for problems in the motherboard, it is returning the warranty. I really need to send my PSU? If yes, it will come out of Brazil to the United States? I will spend much time without a PC? The fault was in store for selling me the PSU with the problem? Thanks for your attention Link to comment Share on other sites More sharing options...
ThePCEnthusiast Posted March 14, 2014 Share Posted March 14, 2014 That is why I am having second thoughts with the RM series. I still prefer the HX series over the RM. I'd probably go HX or AX series Link to comment Share on other sites More sharing options...
tonfontes Posted March 14, 2014 Share Posted March 14, 2014 This problem occurs in all RM 750/850 or just some? Any program that I can do this test? Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted March 14, 2014 Corsair Employees Share Posted March 14, 2014 This problem occurs in all RM 750/850 or just some? Any program that I can do this test? An RM750 or 850 with a serial number < 1341. Problems won't happen to everyone. Just under the correct set of circumstances that are described in the first post of this forum thread. Link to comment Share on other sites More sharing options...
ViTosS Posted March 17, 2014 Share Posted March 17, 2014 Hey guys, does the problem still exists in RM850? Was planning to buy one today and saw this thread after some researches in Google. Thanks. Link to comment Share on other sites More sharing options...
Yellowbeard Posted March 17, 2014 Share Posted March 17, 2014 Hey guys, does the problem still exists in RM850? Was planning to buy one today and saw this thread after some researches in Google. Thanks. http://forum.corsair.com/forums/showthread.php?t=123484 Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted March 17, 2014 Corsair Employees Share Posted March 17, 2014 Hey guys, does the problem still exists in RM850? Was planning to buy one today and saw this thread after some researches in Google. Thanks. The thread states that, unless the unit was manufactured prior to the 41st week of 2013 (thus the 1341 starting numbers of the serial number), your PSU will not have an issue. Link to comment Share on other sites More sharing options...
ViTosS Posted March 20, 2014 Share Posted March 20, 2014 Well guys, the guy who I'm pretending to buy from said the S/N is CP9020056-WW, but I don't think that is the right number we are looking for, do you know exactly what I have to ask to him to check the number? Is the lot code or the S/N? Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted March 20, 2014 Corsair Employees Share Posted March 20, 2014 That's the part number; not the serial number. Link to comment Share on other sites More sharing options...
Administrators Technobeard Posted March 20, 2014 Administrators Share Posted March 20, 2014 Well guys, the guy who I'm pretending to buy from said the S/N is CP9020056-WW, but I don't think that is the right number we are looking for, do you know exactly what I have to ask to him to check the number? Is the lot code or the S/N?Pretending to buy from? Link to comment Share on other sites More sharing options...
Mitchrep Posted April 9, 2014 Share Posted April 9, 2014 Good Afternoon All...I just purchased a RM750 PS from NewEgg two days ago (04-07-2014). To my surprise the first four digits on the serial number are 1338, which puts my unit in the defective lot of the RM750s. I am currently attempting my first build and only have the case, NZXT Phantom, and a Crucial SSD hard drive. The build is going to be done when I have the funds to purchase components, so it could take a couple of months. My question is, since the PS has the pre-1341 serial number, how do I know if it is defective? Should I request a RMA and have it exchanged? I'm not really happy that NewEgg would sell me a unit that is subject to a recall. Any advice would be appreciated! Thanks! Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted April 9, 2014 Corsair Employees Share Posted April 9, 2014 You can go ahead and RMA it with Corsair because of the lot code or you can go ahead and do the build and see if the PSU shuts down. Your call. Link to comment Share on other sites More sharing options...
Mitchrep Posted April 9, 2014 Share Posted April 9, 2014 I guess I have a 5 year warranty so I'll wait and see if it works properly before I go throughout the hassle of the return. Thanks for your help! Link to comment Share on other sites More sharing options...
James1000 Posted April 24, 2014 Share Posted April 24, 2014 I have one of the affected RM750s and due to the fact people are receiving fixed PSUs with < 1341 serials wanted to ask if Corsair are repairing returned ones and sending these out rather than brand new ones? Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted April 24, 2014 Corsair Employees Share Posted April 24, 2014 Corsair was never repairing returned ones. I think I might have mistakenly said that earlier in the thread, but I was quickly corrected by a Corsair employee. The units that were repaired were not returns. They never left the factory and were repaired before they ever left the factory. Link to comment Share on other sites More sharing options...
James1000 Posted April 25, 2014 Share Posted April 25, 2014 Corsair was never repairing returned ones. I think I might have mistakenly said that earlier in the thread, but I was quickly corrected by a Corsair employee. The units that were repaired were not returns. They never left the factory and were repaired before they ever left the factory. Thanks for the info, I feel happier knowing if I need to return it wont be a refurb Im getting back. Link to comment Share on other sites More sharing options...
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