intel i7 4790K and intel's warranty

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Profile Cliff Harding
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Message 1591321 - Posted: 24 Oct 2014, 11:48:02 UTC
Last modified: 24 Oct 2014, 12:06:07 UTC

When I first installed my 4770K in May, using the stock cooler, I couldn't run any BOINC apps because the CPU temps immediately went to the high 80c - mid 90c. Installed a Corsair H75 LCS and the temps very rarely get above 60c, even when crunching @ 100% and the ambient temps on the east coast reach mid - high 90c. At the time of this post, I looking at <50c with ambient temp at 56F. I would think that a H75 or greater type of LCS would lower your temps even lower and I don't have the fan sound.

I would have installed an existing H70 LCS, but the back plate & mountings wouldn't allow for it on the new board. I've used a LCS approach for several years and will not go back to an air cooled approach, even though others swear by them. Too bulky and I have had issues with the placement on the CPU and clearance with the memory sticks. With the LCS I have a cleaner air flow to the top exhaust.

[edit]If and whenever Corsair finally releases their HG10 LCS for GPUs, I'll install them on the twin GTX750TI FTW to decrease fan sound even more. At the moment I get more fan noise from the side fan on my Cooler Master HAF32 - full tower then I get on the GPU or LCS fans.[/edit]


I don't buy computers, I build them!!
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Message 1591328 - Posted: 24 Oct 2014, 12:43:07 UTC

In all the time that I've been building PC's and running SETI I've yet to come across a stock HSF that will handle the heat. ;-)

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merle van osdol

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Message 1591339 - Posted: 24 Oct 2014, 13:11:37 UTC - in response to Message 1591328.  

Wiggo,
Do you use the liquid or air coolers?

In all the time that I've been building PC's and running SETI I've yet to come across a stock HSF that will handle the heat. ;-)

Cheers.

merle - vote yes for freedom of speech
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Message 1591344 - Posted: 24 Oct 2014, 13:35:45 UTC

I've only ever used air cooling here as I've never felt the need for water cooling, but I always make sure that I have a well ventilated case to go along with my rigs. ;-)

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Profile HAL9000
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Message 1591361 - Posted: 24 Oct 2014, 14:24:49 UTC - in response to Message 1591312.  

Thanks Ivan,

I just installed my cooler master. The temps went from (today) 79-86C to 58-68C.
Wow! Thanks everybody.

The noise. Well it is a bit louder but not as bad as the old rig so I can live with it.

Shame on intel for not putting a big black and yellow sticker attached to that fan and cooler explaining what is what. People putting together a rig without the benefit of a group like this are gonna make big mistakes. [Even the ones with common sense]

The stock heatsink is more than adequate probably around 99.5% of machines.

Much like system in your car. If you were to load it up to its maximum load weight & then drive at full speed. You would then find the limits of its cooling capacity fairly quickly. Most people never do that. Do the factory cooling system is designed for most normal use cases. Then the aftermarket takes over for those with higher demands.
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Message 1591449 - Posted: 24 Oct 2014, 16:56:09 UTC - in response to Message 1591361.  

Hal,
What scared me more than anything was your saying you had to replace 2 mb's before you discovered it was the cpu. No thanks - too much work for me.


Thanks Ivan,

I just installed my cooler master. The temps went from (today) 79-86C to 58-68C.
Wow! Thanks everybody.

The noise. Well it is a bit louder but not as bad as the old rig so I can live with it.

Shame on intel for not putting a big black and yellow sticker attached to that fan and cooler explaining what is what. People putting together a rig without the benefit of a group like this are gonna make big mistakes. [Even the ones with common sense]

The stock heatsink is more than adequate probably around 99.5% of machines.

Much like system in your car. If you were to load it up to its maximum load weight & then drive at full speed. You would then find the limits of its cooling capacity fairly quickly. Most people never do that. Do the factory cooling system is designed for most normal use cases. Then the aftermarket takes over for those with higher demands.

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Message 1591459 - Posted: 24 Oct 2014, 17:23:31 UTC - in response to Message 1591449.  

[quote]Hal,
What scared me more than anything was your saying you had to replace 2 mb's before you discovered it was the cpu. No thanks - too much work for me.
[quote]
I went through so many sets of memory & MBs because I didn't even consider it was the CPU. As memory & MB issues are infinitely more common than an actual faulty CPU.

Despite building my own computers for a few decades & never having such an issue before. I am still not 100% sure that I didn't do something to cause the issue I was having with the CPU. That seems more likely to me than a failed chip getting though multiple quality screenings, or there being a faulty batch due to failed test equipment.
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Message 1591463 - Posted: 24 Oct 2014, 17:37:01 UTC - in response to Message 1591459.  

If I had known that I may have kept with the quieter intel HSF. I cleaned the intel off and put it in the drawer for possible use here or in my old dell which also has an intel HSF and has done a good job for about 5 years now.

I know something else. It's easier to get paste off that is only a week old than paste that is 4 years old. Alcohol is great!

Here's to ya.
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Message 1591473 - Posted: 24 Oct 2014, 18:07:25 UTC - in response to Message 1591463.  

Alcohol is always good.... ;)
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Message 1591482 - Posted: 24 Oct 2014, 18:32:06 UTC - in response to Message 1591463.  

If I had known that I may have kept with the quieter intel HSF. I cleaned the intel off and put it in the drawer for possible use here or in my old dell which also has an intel HSF and has done a good job for about 5 years now.

I know something else. It's easier to get paste off that is only a week old than paste that is 4 years old. Alcohol is great!

Here's to ya.

I just use paper towels and rub the gunk off until it comes back clean.

I hold onto the stock coolers. I'm not sure why, but I do. I have a box just for old heatsinks and fans.
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Message 1591571 - Posted: 24 Oct 2014, 21:52:47 UTC - in response to Message 1591482.  

...
I hold onto the stock coolers. I'm not sure why, but I do. I have a box just for old heatsinks and fans.

An Intel stock cooler for a 65 watt CPU might be excellent if it could be mounted on a 20 watt CPU. I'm in favor of repurposing NOS items.
                                                                   Joe
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Message 1591604 - Posted: 24 Oct 2014, 22:51:32 UTC - in response to Message 1591459.  

There is a line on SIV64 across from L1 Data Cache that says 47C. I think that is the temp on the reverse side of the MB behind the CPU. I guess that would be the number I should always check. Right? Rather than the cpu core #'s.

[quote]Hal,
What scared me more than anything was your saying you had to replace 2 mb's before you discovered it was the cpu. No thanks - too much work for me.
[quote]
I went through so many sets of memory & MBs because I didn't even consider it was the CPU. As memory & MB issues are infinitely more common than an actual faulty CPU.

Despite building my own computers for a few decades & never having such an issue before. I am still not 100% sure that I didn't do something to cause the issue I was having with the CPU. That seems more likely to me than a failed chip getting though multiple quality screenings, or there being a faulty batch due to failed test equipment.

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Message 1591633 - Posted: 24 Oct 2014, 23:38:53 UTC - in response to Message 1591604.  

There is a line on SIV64 across from L1 Data Cache that says 47C. I think that is the temp on the reverse side of the MB behind the CPU. I guess that would be the number I should always check. Right? Rather than the cpu core #'s.

[quote]Hal,
What scared me more than anything was your saying you had to replace 2 mb's before you discovered it was the cpu. No thanks - too much work for me.
[quote]
I went through so many sets of memory & MBs because I didn't even consider it was the CPU. As memory & MB issues are infinitely more common than an actual faulty CPU.

Despite building my own computers for a few decades & never having such an issue before. I am still not 100% sure that I didn't do something to cause the issue I was having with the CPU. That seems more likely to me than a failed chip getting though multiple quality screenings, or there being a faulty batch due to failed test equipment.

I'm not sure what the value in SIV is as I don't use it to monitor my temps. It could very well be the external CPU temp. To me 47ºC seems like a reasonable temp to be reading.
With my thermostat telling me it is 75ºF in the living room. My HTPC with an i5-4670K is reading:
49ºC external CPU temp
57-58ºC core temps
34ºC MB/case temp
39ºC PCH (chipset) temp

All of the values are good to monitor. I focus more on the CPU core temps rather than the external temp. As the core temps are really the important part. It doesn't matter how cool the outside of the CPU is if the cores are melting. If you are reading 20ºC for the external CPU temp, but the cores are at 95ºC you are probably going to have a bad time.
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Message 1591637 - Posted: 24 Oct 2014, 23:42:55 UTC - in response to Message 1591571.  

...
I hold onto the stock coolers. I'm not sure why, but I do. I have a box just for old heatsinks and fans.

An Intel stock cooler for a 65 watt CPU might be excellent if it could be mounted on a 20 watt CPU. I'm in favor of repurposing NOS items.
                                                                   Joe

Yeah I always figure I might be able to use them on another project sometime. I have a heatsink at work I rest my phone on while charging to help dissipate the heat. Then some of my old stock P4 heatsinks I am thinking of using on a solar panel inverter I'm designing.
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Message 1591690 - Posted: 25 Oct 2014, 1:56:25 UTC
Last modified: 25 Oct 2014, 2:53:42 UTC

I had to help keep my cpu happy also. The hsf was going into overdrive too often. I found the the solution was to remove the factory paste and put a good smear of "Antec Formula 7 Nano Diamond" on.

I am running:
3x MB
1x AP
1x data set for climate prediction

All on my AMD FX 4170 cpu. System tracker reports the cpu temp is 58ºC-62ºC.

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Message boards : Number crunching : intel i7 4790K and intel's warranty


 
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