You should be able to return the defective power supply for a full refund and an Antec PSU, while not as good a brand as Seasonic is still a good brand so you should be fine with it. Sadly even the best brands sometimes have duds.

The new cooler is not strictly needed on a non overclocked system but you may as well go with it for better cooling. You can go ahead and shut down the PC and put your other parts in, 2 hours would have been plenty of time to test for problems so after 10 you are golden  Just be sure to take your time and be careful not to rush, it is so easy to go too fast and get careless once the excitement kicks in 

Let us know how it all runs once you have it up and running 

i borrowed (with some difficulty) a smps with a 24 pin atx connector as well as a 4 pin 12 volt connector. i connected this psu and booted the the thing. the thing has been going on from about 12 nnoon. as it has been going on for so long, i am wondering whether to cancel the proprietary heat sink i ordered. or maybe i should just let it arrive and then adorn the processor with it!

i decided to go ahead with another psu. this borrowed one happens to be an antec. so i decided to sail with it. i think i will order an antec 500 watts psu and then i should be fine.

your suspicion turned out right. the psu WAS the problem. thanks a lot guys!

i love you guys man!!

that one hour uptime was just once. it never happened again.

as of now the established pattern is -

i know that xalter would deprecate it, but i just want to ask. i am not going to do anything rash by myself without first asking.

would it damage the z97 pro4 if i just tried it for ten minutes or so with an old working psu. except that this old psu has a 20 pin atx and a 4 pin atx connector. keeping to the latched orientation, there would be 4 empty places on the motherboard while 20 would be occupied. while the 4 pin would go into the 8 pin on the motherboard with four unoccupied. i closely verified the pattern on the mating parts and they match. IF (i am not going to do anything like that, but just curious) i did this, would i be "frying" or "cooking" something on the mother board or the processor or the ram?

regards

i re-did the heat sink mounting procedure without the mistakes pointed out by parsec.

but no effect.

i will order one of the cpu coolers suggested by xalter and then get back. also in the meanwhile i will get an uninteruptible power supply unit. 

i am humbled by the readiness with which you guys share your insights.

with thw best regards

Try with the stock cooler again but be sure it is firmly attached to the board. It should be tight on the CPU to the point where there is no wiggle. It is possible that the CPU is operating at ~58c when idling in BIOS and shooting up to thermal shutdown temps as soon as the BIOS polls the system for info. This kind of sharp rise can happen quicker than the polling intervals of the BIOS hw monitor (usually every 1 - 2 seconds). 

If you are wanting a solid cooler I would recommend the Cooler Master Hyper 212 Evo, it is very solid air cooler and quite popular among enthusiast users. It is a bit of an overkill for a system that will not be overclocked but given you are in India where it gets hot and humid it will be useful for those times you are not using an air conditioner. If you are after something a little smaller and cheaper I can recommend the Arctic Cooling Freezer 13, I have used this cooler myself and it is fantastic for its size and price.

Good luck Car313, lets hope we have found your problem and that you can get it sorted now 

the hell with the intel hetsink, i absolutely don't mind ditching this heatsink and getting myself a seperate one. shall i go ahead? just suggest me a good one. and i will.

but for all that when the sysytem reboots, the temp at the most is 55 to 58 degreed celsius. do you think the processor will restart at that temp? this is about half way to 90 celsius.

i just removed the heatsink and this time will get it right. i hope i can come back with some happy news. and i sure hope this solves my problem.

with warm regards.

ps. there WAS. i swear a beauty sitting in a seventies model open top car! i swear! it even looked to me like the good old mustang ford! exactly where parsec had posted a picture of of the label on the psu.

"the issues in particular are:

the plastic supports are quite flimsy and even after being firmly seated, there is some play between the four holes on the mobo and the expanded feet of the plastic supports."

I was worried I download the wrong picture somehow, nothing like that on this PC.