Is there a problem with my H70?

[Castroman]

Hello all,

 

I recently did a bit of an overhaul to my system and one of the additions was a H70.

 

When everything was first up and running my idle temps at stock 2.63ghz were 38ish and then under full Prime 95 load 58 - 62.

 

Didn't think that was bad at all.

 

Well today I went on a quest to join ranks of those who have oc'd to a nice and stable 4ghz.

 

Well on my first try I was stable no issues sitting right at 4.2ghz.

 

My idle temps are now 58 - 63. I thought it was high but I still wanted to see what thing would be like under full load.....

 

Well here's how that went.

 

Immediately after starting Prime 95 my temps were off to the races. Real temp started to look like the spedo on some drag racing sports car, and before i could even manage to close prime 95 I experience a thermal shutdown.

 

That last temp I saw in real temp before the shutdown was 99.

 

This was literally seconds after i started Prime 95 there was no time to react.

 

 

 

What can i do to fix this?

 

 

 

My h70 is push pull into the case.

 

Ambient is 66 F

 

Fans and pump are at 100%

 

Water block is securely fastened down.

[djmorgan]

Something definately wrong here! go back to stock and see what your temps are. If they are back to normal then I would suspect in order to get your OC you have ramped up the volts/amps which equal heat and a lot of it.

 

If that is the case then you need to consider a different path to your OC, many are running fast machines with only marginally higher temps than stock, however you are ambitious in your OC I'm surprised it stayed stable.

 

David

[Castroman]

Something definately wrong here! go back to stock and see what your temps are. If they are back to normal then I would suspect in order to get your OC you have ramped up the volts/amps which equal heat and a lot of it.

 

If that is the case then you need to consider a different path to your OC, many are running fast machines with only marginally higher temps than stock, however you are ambitious in your OC I'm surprised it stayed stable.

 

David

 

Thanks for the reply

 

When I went back to stock my temps at idle were 38 - 41, and then under full prime 95 load for 1 hour 58 - 63 so pretty much the same as before.

 

Here is the guid i used for the OC all of the settings were identicle.

 

http://www.evga.com/forums/tm.aspx?m=20028

 

Wasn't really a huge power increase.

 

 

Any other ideas?

[djmorgan]

I don't believe it is cooler related, there is just too much heat, you do realise your pushing to a 60% OC! it makes no sense that the cooler would stop cooling on an OC, suggest you check your settings again, this might be difficult if you can't get it stable to check whilst running!

 

The best bet, rather than following a guide, is to gather your own knowledge, and then to move up your OC gradually and test at each step, go first for something like 3.0Ghz, then 3.2Ghz etc.

 

You should always test your OC using the appropriate tools to ensure you have stability, not all memory, cpus' or motherboards are created equal.

 

David

[Castroman]

I don't believe it is cooler related, there is just too much heat, you do realise your pushing to a 60% OC! it makes no sense that the cooler would stop cooling on an OC, suggest you check your settings again, this might be difficult if you can't get it stable to check whilst running!

 

The best bet, rather than following a guide, is to gather your own knowledge, and then to move up your OC gradually and test at each step, go first for something like 3.0Ghz, then 3.2Ghz etc.

 

You should always test your OC using the appropriate tools to ensure you have stability, not all memory, cpus' or motherboards are created equal.

 

David

 

 

Well I really don't think that's its to much heat for the cooler. I mean there are a bunch of other people with the same hardware that are stable at 4ghz and running at 61 - 68 under full load.

 

I understand that even identicle components are different from each other but this just makes no sense thae my equipment would run hotter than any other I7 920 setup on the planet lol.

[djmorgan]

I can't help anymore! as suggested gradually increase your clock speeds and monitor the results, it's the only way you will identify any problems.

 

David

[Carlos68]

Thanks for the reply

 

When I went back to stock my temps at idle were 38 - 41, and then under full prime 95 load for 1 hour 58 - 63 so pretty much the same as before.

 

Here is the guid i used for the OC all of the settings were identicle.

 

http://www.evga.com/forums/tm.aspx?m=20028

 

Wasn't really a huge power increase.

 

 

Any other ideas?

 

Firstly you can't use someone elses setting as every CPU is different and need different voltages to achieve a certain OC, you need to use the setting as a base and then try different voltages.

 

Second, the voltages used in the OC you have linked to are very high for a i7 920 so i would start at a much lower core voltage and then run prime 95 to see if its stable, if its not then go back and increase the voltage slowly until you do get a stable OC.

 

And thirdly you may find that your CPU is just not a good enough example to achieve a 4.2Ghz OC so you may need to be less ambitious !

[Archaea]

I found those settings in the default guide to be too hot for the cooling in my Coolermaster Cosmos case.

 

I used these settings for a 4.0ghz overclock and it works fine. The original problem was solved by moving my fans and H70 orientation around.

 

http://www.evga.com/forums/tm.aspx?m=679492&high=