Message boards :
Number crunching :
Haswell Temps???
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Author | Message |
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Cruncher-American Send message Joined: 25 Mar 02 Posts: 1513 Credit: 370,893,186 RAC: 340 |
I just got an I7-4771 (84 watts) to replace my Phenom II x6 1090T. Testing as Keplerbox using Seti, I noticed that it runs a lot hotter than my Sandy Bridge - E I7-3820, which draws a LOT more power - 130 watts. Running SETI on 7 of 8 virtual cores on both, I find the 4771 running perhaps 10-15 C higher using CPU Meter, which gives temps for all cores separately. They both have adequate cooling, so what's up with that? Is my Haswell going to have a significantly shorter life than the SB-E because of this? |
spitfire_mk_2 Send message Joined: 14 Apr 00 Posts: 563 Credit: 27,306,885 RAC: 0 |
Is my Haswell going to have a significantly shorter life than the SB-E because of this? Ask this question in ten years or so. |
Cliff Harding Send message Joined: 18 Aug 99 Posts: 1432 Credit: 110,967,840 RAC: 67 |
I will ask the first very important question -- What are you using for cooling the CPU on both machines, air or LQS and are they sitting on the same level? Case size and fans are another factor. I have 2 i7s a 950 & a 930, both use a LQS for CPU cooling, have the same case and fan configuration. The biggest difference in the temps between the two is that the 930 runs cooler because it's sitting on the floor as opposed to the 950 machine which sits on my desk, a difference of 29 inches and a temp rise of 10 -15c depending on the weather. I don't buy computers, I build them!! |
Lionel Send message Joined: 25 Mar 00 Posts: 680 Credit: 563,640,304 RAC: 597 |
http://www.bit-tech.net/news/hardware/2013/06/06/haswell-heat/ http://www.extremetech.com/computing/157337-the-haswell-paradox-the-best-cpu-in-the-world-unless-youre-a-pc-enthusiast Suggest you have a look at these. There are more articles around if you search. cheers |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
http://www.bit-tech.net/news/hardware/2013/06/06/haswell-heat/ That first link dose'nt look good for Haswell at all. And Intels response is lame. [/quote] Old James |
shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
I didn't have a look at Lionel's link (I'm sure they say everything I'm about to say) but general consensus (I have no personal experience with Haswell) from articles and comments around the web is that this is 'normal'. Haswell was a huge disappointment for enthusiasts unfortunately. You'll have to search this 'cause I don't remember well but I think Intel cheaped out on the way they cover the chip*. Instead of solder they're using a fancy glue? I seem to remember some crazies stripping the casing and cooling the actual chip directly... Edit: Another link Intel Core i7-4770K CPU Review. Intel Haswell for Desktops: Ruin of Our Hopes? (page 11 of a 13-page article) *this may have happened/started on Ivy Bridge? |
Cruncher-American Send message Joined: 25 Mar 02 Posts: 1513 Credit: 370,893,186 RAC: 340 |
Actually, I think my MB has a defective socket - if I use a straightedge, I find that at the end near the hinge, the sides of the socket are (just barely) higher than the top of the processor. So the H50 I used first (that ran near 100C at full load) wasn't making full contact with the CPU. When I used a more robustly mounted air cooler (which squeezed the socket some when tightened) I got temps in the low 80s, still too high. Obviously not making strong contact with the CPU. EDIT - DELETE: I will RMA the MB at Newegg and see if I get a better socket. EDIT - ADD: Looking at the stock HSF that came with the CPU, it has a large flat aluminum base with a round copper insert to make contact with the CPU. That insert a) is smaller than the hole in the socket and b) sticks out a small fraction of an inch. So it fits within the socket, unlike almost any other HSF, which would have a larger contact surface than the hole in the 1150 socket. So maybe that is by design? Maybe I will add a copper shim between the HSF and the CPU (with TIM on both sides, of course). Is that a good idea? /EDIT |
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
I dry my laundry in my computer room... To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
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