I7 950 non-OC running at too high temperature.

[MordredVienna]

Hi, first post here, so sorry if I am not aquainted with typical procedures in these cases, I came to this site because it helped me in the past.

The problem:
CPU: I7 950@3.07GHz, Stock Cooler
MB: Asus P6TD Deluxe
Unknown Case Type with 2 extra Fans.

According to Coretemp, CPU runs at 70° Celcius when Idle, and under load hits 100 degrees.
I found out in the first place because Termal Throttling kicked in.

As far as I know, this was NOT an issue until recently, when my power supply died. I replaced my 750W PS with a 850W one i had available from another system.

SIW claims Voltage to CPU is 0.92-1.26, averaging 1.15-1.20.

CPU Fan is running at 2.1k RPM.

I did clean the interior, removed the Heatsink, scraped off paste and re-applied a rice grains worth of Thermal Paste before putting the Heatsink back on(which led to idle temperature dropping to 70 degrees, from 80).

I tried googling but it seems most problems in this regard occur because people use too much/too little thermal paste, don't install the heatsink correctly, or some other such problems.

Here i had a system that was seemingly running fine(though no guarantee since i did not check before I realized something was wrong=>thermal throttling) until one day after exchanging the Power Supply it decides to want to be an oven instead.
But the voltages seem fine from what I read? The Stock Cooler was also cleaned and the fan is running. I have little idea what else to check or look out for and hope somebody can give me a gentle push in the right direction-thanks for that in advance

 

[sm625]

Can you verify that the heatsink is getting hot enough to reflect that sort of temperature? Also, have you removed the heatsink to see how your "rice grain" of thermal paste has spread out? That will tell you if you're making good contact. It is the only way to know for sure.

 

[MordredVienna]

Can you verify that the heatsink is getting hot enough to reflect that sort of temperature? Also, have you removed the heatsink to see how your "rice grain" of thermal paste has spread out? That will tell you if you're making good contact. It is the only way to know for sure.

The heat sink is definitely sufficiently hot. I would guess 60-70 degrees at least.
I have applied thermal paste before, but I will verify if it properly spread, just to make sure its not that(plus if the heat sink seating was improper it would show too...but the temperature it has kind of eliminates that hope for me). Thanks for your help.

I just checked.
The thermal paste amount was fine, and the spread, in theory, good, but not symetric.
Upon further examination, one of the sockets of the heat sink seems to not work identical to the other 3. (Rather hard to describe, it clicks in just fine and gets locked down but the feel is different...the feeling is subtle enough i did not realize anything was wrong when i first reseated it).

Unless anybody else has ideas, i will assume my stock fan seating is faulty and maybe got slightly dislodged when i installed the power supply, and try with a new one.

 

[MordredVienna]

alas, i was not logged in, meant to edit upper post. sorry for doubleposting.

 

[Deders]

they can be tricky, has one of the tabs that grip the boar in snapped off?

 

[MordredVienna]

they can be tricky, has one of the tabs that grip the boar in snapped off?

nope, all still there, as said, they also click in nicely, and from the backside of the board it looks perfectly.
However one of the pins that affix them seems to have too much "wiggle room" meaning while the connection on the board is fine and the connection on the heatsink is fine, the piece in between has too much "free room" and doesn't fully hold down the heatsink in that corner. Again sorry, but its very hard to describe. That free room is maybe 1-2 millimeters, not really noticeable, but the spread pattern of the thermal paste showed, and subsequent more accurate testing reinforced my belief that this corner connecting piece is the culprit.

 

[aigomorla]

buy a new sink..

the stock heat sink is very poor for a Bloomfield.
They made better paper weights then heat sinks.

If your on a budget, even a Coolermaster Hyper 212 will do a far better job then the stock heat sink, and wont break u more then 20 dollars.

 

[MordredVienna]

buy a new sink..

the stock heat sink is very poor for a Bloomfield.
They made better paper weights then heat sinks.

If your on a budget, even a Coolermaster Hyper 212 will do a far better job then the stock heat sink, and wont break u more then 20 dollars.

new sink is ordered.
I kept the stock sink because i expected it to be sufficient due to not having planned to overclock this system.
Somewhat on a budget, but already placed my order before reading your recommendation, and took an ARCTIC Freezer 13, which according to user reviews on amazon seemed to do a fine job at cooling while staying very silent.
I could still cancel the order though(not in shipping yet) and change it if you think I should (gonna trust you guys on that one).

Thanks a lot for the continued support.