Hi Guys,
The issue i am having is that the 12v rail fluctuates heavily under heavy load (down to 11.1-11.4v) and cables 10 and 11 on the 24pin atx cable get INCREDIBLY hot, the whole cable does not get hot just right next to the mainboard header. From my understanding these cables are the two +12v.
A little backstory... I work in IT repairs myself however other than my home pc i rarely work on high spec gaming machines and have not experienced any similar issues.
The initial incident happened around a week ago where the machine would power straight off and then intermittently power and would hang on boot and not post. I noticed the 24pin header extension i use had become physically distorted and blackened. I initially thought this was the problem and just removed it any had the 24pin straight into the mainboard however the fault still appears to be there.
http://imgur.com/nwVQIF2
The is the adapter that was removed and as you can see these match up to the cables which are still getting hot.
The machine i have is a full custom watercooled loop setup with the specs below; (i know its getting old but other than this issue its going strong)
Intel Core i7 960 (First gen)
Rampage III Black edition (With waterblock)
12GB Corsair DDR3
2x EVGA GTX 780ti in SLI
Corsair HX1050 Platinum PSU
3 HDDs 1 SSD
Various lights, fancontroller, pump for the loop etc.
http://imgur.com/vOAM92c
Picture of the system for reference - ignore the dust, its been a while since I cleaned it and its currently in troubleshooting mode hence the other mess
I have previously had the PSU returned under warranty approximately 3 years ago for a very similar issue involving these 2 pins. However this psu has been working fine since and only started having the issue 1-2weeks ago.
Using a fairly cheap temp sensor that reported temps in excess of 80*c when held between the two cables (2-3 on 24pin), so for obvious reasons i will be waiting for the fault to be found and repaired/replaced before continuing using the machine.
Thinking logically i would say that the issue is either with the mainboard itself as this issue has happened before (be it a long time ago, but would have thought the issue would reccur immediately after the replacement was installed) or that the system is being overloaded on the 12v rail, but a 1050w Platinum PSU would surely be enough?..
I can see i will end up needing to get replacement parts even if its just to test with however i would appreciate anyone who has a bit more understanding when it comes to the electronics of powersupplies before i go out and spend £100+ on a replacement PSU when it may be the mainboard that is at fault.
If theres anything i have missed them please ask.
Thanks in advance
The issue i am having is that the 12v rail fluctuates heavily under heavy load (down to 11.1-11.4v) and cables 10 and 11 on the 24pin atx cable get INCREDIBLY hot, the whole cable does not get hot just right next to the mainboard header. From my understanding these cables are the two +12v.
A little backstory... I work in IT repairs myself however other than my home pc i rarely work on high spec gaming machines and have not experienced any similar issues.
The initial incident happened around a week ago where the machine would power straight off and then intermittently power and would hang on boot and not post. I noticed the 24pin header extension i use had become physically distorted and blackened. I initially thought this was the problem and just removed it any had the 24pin straight into the mainboard however the fault still appears to be there.
http://imgur.com/nwVQIF2
The is the adapter that was removed and as you can see these match up to the cables which are still getting hot.
The machine i have is a full custom watercooled loop setup with the specs below; (i know its getting old but other than this issue its going strong)
Intel Core i7 960 (First gen)
Rampage III Black edition (With waterblock)
12GB Corsair DDR3
2x EVGA GTX 780ti in SLI
Corsair HX1050 Platinum PSU
3 HDDs 1 SSD
Various lights, fancontroller, pump for the loop etc.
http://imgur.com/vOAM92c
Picture of the system for reference - ignore the dust, its been a while since I cleaned it and its currently in troubleshooting mode hence the other mess
I have previously had the PSU returned under warranty approximately 3 years ago for a very similar issue involving these 2 pins. However this psu has been working fine since and only started having the issue 1-2weeks ago.
Using a fairly cheap temp sensor that reported temps in excess of 80*c when held between the two cables (2-3 on 24pin), so for obvious reasons i will be waiting for the fault to be found and repaired/replaced before continuing using the machine.
Thinking logically i would say that the issue is either with the mainboard itself as this issue has happened before (be it a long time ago, but would have thought the issue would reccur immediately after the replacement was installed) or that the system is being overloaded on the 12v rail, but a 1050w Platinum PSU would surely be enough?..
I can see i will end up needing to get replacement parts even if its just to test with however i would appreciate anyone who has a bit more understanding when it comes to the electronics of powersupplies before i go out and spend £100+ on a replacement PSU when it may be the mainboard that is at fault.
If theres anything i have missed them please ask.
Thanks in advance
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