Re: [H] PSU
seems once warmed up it holds 4.9/5 pretty good and has been running all night with no glitches. New PSU on order thanks At 04:01 PM 4/15/2014, DSinc Poked the stick with: I'd say the PSU is toast. It has lost most of its' regulation ability. Need a new PSU. Yes, aware Hitachi is now WD. Don't know what this portends yet. I still focus on WD 'Reds' ATM. JMHO, Duncan On 04/15/2014 18:26, FORC5 wrote: Have a PSU that on cold start shows 5v rail fluxing 4.3 to 5. Warmed up flurs 4.9/5. I suspect may be what is causing my friends blue screens. Have not tested the drives yet. PSU is a 640watt Raidmax about 4 years old. drives are Hitachi. I hear they now belong to WD. thanks fp Date: Tuesday, April 15th, 2014 ***Caution, Tagline Below *** **Tallyho** ** I hope I'm never out when my ship comes in. ** Date: Wednesday, April 16th, 2014 ***Caution, Tagline Below *** **Tallyho** ** 2+2=4 (for the time being). **
Re: [H] PSU
I'd say the PSU is toast. It has lost most of its' regulation ability. Need a new PSU. Yes, aware Hitachi is now WD. Don't know what this portends yet. I still focus on WD 'Reds' ATM. JMHO, Duncan On 04/15/2014 18:26, FORC5 wrote: Have a PSU that on cold start shows 5v rail fluxing 4.3 to 5. Warmed up flurs 4.9/5. I suspect may be what is causing my friends blue screens. Have not tested the drives yet. PSU is a 640watt Raidmax about 4 years old. drives are Hitachi. I hear they now belong to WD. thanks fp Date: Tuesday, April 15th, 2014 ***Caution, Tagline Below *** **Tallyho** ** I hope I'm never out when my ship comes in. **
Re: [H] PSU ? /PS
Tested PSU on bench and it starts but after a few moments the 5V goes nuts. I have to assume at this point that the 5V circuit has something to do with the trigger circuit. thanks Now to play mother may I with the automated phone activation system. :-| hohoho fp At 09:30 AM 4/19/2013, FORC5 Poked the stick with: My server went Dead last week, PSU tested OK with two different testers so I *assumed* MB infant mortality. New MB in still DOA, BUT works with a different PSU. My first guess was accurate but why would a PSU fire up with a tester but not run on a MB ? Suppose I needed a spare MB I guess. Problem with that is I messed up the pins putting the cover back in the old MB CPU socket. Would not admit that to just anyone :'( Not sure if the PSU is under warranty or not but not going to worry about it. Would probably test good for them as it did for me. very strange. Only good news is server is back up and running. :-| fp
Re: [H] PSU ?
Thanks Forc5, A very interesting question. Congrats on your server. OK, I'll speculate that psu 'testers' just can not load a psu the way(s) a m/b does. Sp, when I supect a psu is OK, I blame the m/b. I believe that m/b's are really complex; and, lots of things can cause trouble and frustration. PSU'sare less complex; well, in their basic designs, but there are lots of places that their regulation can go wonky. We have all seen this I am sure. And, I could be on very thin ice with this opion! I do not know how much 'communication' goes on between a m/b and its' psu, but I suspect that any/all psu testers only 'test' via some static load to check the psu's regulation of its' voltages. M/b's put real, active demands on the psu; something I suppose a tester just can not do, perhaps. I also accept that there are 'testers', and, then there are other 'testers. I recall when psu testers became availableand folks started reporting about them. I always questioned how do I check-out, and/or prove that my tester is not wonky? Never did solve that, so, I never bought one. Best, Duncan On 04/19/2013 12:30, FORC5 wrote: My server went Dead last week, PSU tested OK with two different testers so I *assumed* MB infant mortality. New MB in still DOA, BUT works with a different PSU. My first guess was accurate but why would a PSU fire up with a tester but not run on a MB ? Suppose I needed a spare MB I guess. Problem with that is I messed up the pins putting the cover back in the old MB CPU socket. Would not admit that to just anyone :'( Not sure if the PSU is under warranty or not but not going to worry about it. Would probably test good for them as it did for me. very strange. Only good news is server is back up and running. :-| fp
Re: [H] PSU problems
At 06:42 PM 11/07/2010, James Maki wrote: Before I initiate the RMA process, is there anything else I should be looking at to isolate/identify the problem? Sounds like it can't handle any real load. There's no way I know of to test this perfectly without expensive test equipment, but I'd say you've done enough. T
Re: [H] PSU problems
On Mon, 12 Jul 2010, Thane Sherrington wrote: At 06:42 PM 11/07/2010, James Maki wrote: Before I initiate the RMA process, is there anything else I should be looking at to isolate/identify the problem? Sounds like it can't handle any real load. There's no way I know of to test this perfectly without expensive test equipment, but I'd say you've done enough. Agreed, with a PSU I just verify that the problem follows the power supply and then ship the thing back. Christopher Fisk -- Han Solo: This is not going to work. Luke Skywalker: Why didn't you say so before? Han Solo: I did say so before!
Re: [H] PSU problems
Thanks Thane and Christopher. I have initiated the RMA process. Hope the replacement holds up better. Jim -Original Message- On Mon, 12 Jul 2010, Thane Sherrington wrote: At 06:42 PM 11/07/2010, James Maki wrote: Before I initiate the RMA process, is there anything else I should be looking at to isolate/identify the problem? Sounds like it can't handle any real load. There's no way I know of to test this perfectly without expensive test equipment, but I'd say you've done enough. Agreed, with a PSU I just verify that the problem follows the power supply and then ship the thing back. Christopher Fisk
