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Insanely cheap socket 775 cooling solution

post #1 of 17
Thread Starter 
As you may know, nationwide, CompUSAs are closing. I just happened to stop by one today, and spotted a $7 all copper HS for socket 775s.

I just got an e8400 and it came with an all aluminum HS, less an inch tall, and the fan on top of it was unprotected, and as such could suck air from all around instead of ducting it in (which helps a little). Anyway, for $7 I decided to give it a try, here's some pics and the results.

New $7 copper HS on the left, stock HS on the right.





Ambient temps 75F:
Stock aluminum HS -
Idle core1/core2: 40C/43C
Load core1/core2: 62C/65C

$7 Copper HS -
Idle core1/core2: 38C/42C
Load core1/core2: 56C/60C
See post #8 for update, temps much lower

Idle temps don't benefit much, but load temps are down around 5C, which isn't bad for $7. If you like lapping your HS this one is probably not for you though, the clamps around the outside come down further than the HS bottom, which makes it impossible to lap on a flat surface unless that surface is about 2"x2" in size.

Not an insanely great cooling solution, but if you're not looking to do extreme overclocks then this might be good enough to keep your temps down while giving you some overclocking room. Good budget cooler I'd say. And I like the fact you don't need to remove the entire motherboard to clamp it on. It's not too heavy either so it doesn't pull down under its own weight, the clips seem to hold it on just fine.

These were originally $20, so get them while they last, CompUSA is clearing them out. And also keep in mind my case is extremly cramped and gets very little airflow. So temps are a bit high across the board. The main point is that they dropped 5C though .
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post #2 of 17
For $7 thats not a bad drop in load temps, looks a little like the bigger Intel cooler
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post #3 of 17
Aftermarket cooling is really the way to go stock coolers just make for good paperweights LOL cool exp.
post #4 of 17
I remember they reviewed that at frozencpu or someplace. I read about it. They said it was absolutely awful.
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post #5 of 17
You could make a duct for the stock cooler if you really wanted to.
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post #6 of 17
Now take two of those heatsinks, solder them together and get even better cooling
post #7 of 17
Thread Starter 
The duct may cost more than the $7 I paid for the copper HS P

$7 for 5C drop is ok in my book. In about a year, when I can find a game that drops me below 60fps at max settings, I'll consider a higher OC, for now this should get me to 4Ghz.
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post #8 of 17
Thread Starter 
Wow, AS5 realllly set in over night. My new load temps are 52C/56C. So I'm now seeing 9C drops over the stock HS.

In fact, at 1.36v I only get to around 62C load at 75F ambient temps. 1.36v represents the maximum voltage recommended for the e8400. This means (for me) a $7 HS will keep my chip within proper temps at the highest voltage I ever plan on giving it.

Only thing left to do is to get my stupid mobo to run mem or CPU stable past 1610fsb so that I can actually get to 4.0Ghz with this HS.
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post #9 of 17
Quote:
Originally Posted by lordikon View Post
The duct may cost more than the $7 I paid for the copper HS P

$7 for 5C drop is ok in my book. In about a year, when I can find a game that drops me below 60fps at max settings, I'll consider a higher OC, for now this should get me to 4Ghz.
one word. Crysis.
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post #10 of 17
I don't get it. That stock HSF looks like one from a Celery. Back in January, I started a thread comparing stock Intel HSFs - one from a C2D and the other from a Celeron 430. Here's the link:

http://www.overclock.net/intel-cpus/...stock-c2d.html

The one from the 8400 seems the same size as the one from the Celery - do 8400s really run that cool? I knew the 8400 would be better than my 6550, but I didn't know it would run THAT much cooler. Maybe I'll have to pick one up...
    
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