Will my 2600K stock heatsink work on an 8700K?

Toggle sidebar Toggle sidebar
S

sebastianpalm7

Prominent
Nov 15, 2017
15
0
520
I'm currently running an i7-2600K with a lightly used original heatsink+fan unit (I had a Corsair H100 where the pump crashed earlier this year, so I dug the old stock cooler out of its box as a stopgap so it's only been used for eight months or so).

I was planning on upgrading to an i7-8700 this month, but noticed that I have *just* enough room in my budget for an i7-8700K instead... but no cooler until Christmas.

According to previous answers, the cooler should physically fit, and according to ark.intel.com, the TDP of the two units are the same 95W - do I dare use the old cooler for a month or so?

(edit: clarified some things to avoid humorous misunderstandings)
 
Sort by date Sort by votes
mcmahoon12

mcmahoon12

Prominent
Nov 13, 2017
24
0
520
I don't think it be a wise idea to run the i7-8700K processor using only a lightly used heat sink, right? Sure a heat sink is essential to any PC cooling system, but, in my opinion, it should be used in tandem with a CPU fan. Why risk overheating the new CPU? I'd say wait until Christmas. However, if you're comfortable with the temps, as stated by the above user, go right ahead!
 
Upvote 0 Downvote
S

sebastianpalm7

Prominent
Nov 15, 2017
15
0
520


What's a good temperature range, then? Ambient temperatures will be on the low side, it's winter and my cat likes it a little drafty, so I'm looking at 18-20 C...



'Doh. I mean that it's a heatsink+fan cooling unit, the one that came stock with the 2600K. I wouldn't try to run anything much bigger than an Atom CPU without active cooling unless the heatsink was huge.
 
Upvote 0 Downvote
theonerm2

theonerm2

Splendid
Dec 28, 2009
4,113
81
25,140


I knew you meant heatsink and fan. Or at least I assumed you had a fan. That CPU with a heatsink only would last only a few minutes before shutting down. You may need to underclock/undervolt a bit to get things just right so I'm certain that we can make it work if the temps are too hot to begin with.
 
Upvote 0 Downvote
S

sebastianpalm7

Prominent
Nov 15, 2017
15
0
520


I downloaded CoreTemp to figure out how hot my current CPU is running - it's idling around 40 C, and the most strenous thing I'm planning on doing with my system in the first month (until I get a decent cooler) is quick renders in Bluerender (for LEGO Digital Designer), which pushed the temp up to 77 C in about a minute before finishing.

I'm assuming that with the same TDP, the temps will be similar for the new chip and cooler? Or will I be looking at even higher temps?
 
Upvote 0 Downvote
S

sebastianpalm7

Prominent
Nov 15, 2017
15
0
520


Ugh. Well, I'll see what happens with availability first of all, if I can't get my hands on a chip before I can afford the cooler as well, the point is kind of moot... Thanks for the help though!
 
Upvote 0 Downvote
S

sebastianpalm7

Prominent
Nov 15, 2017
15
0
520
Mainboard and CPU arrived today, already had the RAM. YOLO-mode was engaged and...

The 8700K idles *a lot* cooler than the 2600K. As in, sub-30 C, where the 2600K went to 40 degrees with the same amount of background stuff. And it didn't go higher than 70 during my quick benchmark, though it might just take a while to heat up full.

I'm thinking the reason why my 2600K was running way hotter is down to "too much thermal paste", as there was rather a lot of goo under the heatsink after I took it off the old board.
 
Upvote 0 Downvote
theonerm2

theonerm2

Splendid
Dec 28, 2009
4,113
81
25,140


I'm surprised that it runs that cool after hearing from other people about how hot the CPU runs. You may have gotten lucky with that CPU. It might be one heck of an overclocker.
 
Upvote 0 Downvote
S

sebastianpalm7

Prominent
Nov 15, 2017
15
0
520


Maybe, maybe not. I tried a render in Lightwave (traditional CPU renderer) and it went up to 95 C in about as many seconds before I cancelled it. Not trying that again until I have a more beefy cooling solution. Really really don't want one of those mining trojans at the moment.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom