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i7 3820 - 4820 Overclock Club - Page 103

post #1021 of 6499
Nothing else required, just being able to get into windows, open cpu-z , get & save the validation (for a cpu-z validation). Viss also ran wprime 1024m at the same clockspeed, that one does need some stability to last a couple minutes.
    
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post #1022 of 6499
Hit 5.1 last night but my internet wasent plugged in so no validation doh.gif

51.png

full loop with raystorm block and ambient temps of 30c

not sure how much higher i wanna go...


cheers.gif
post #1023 of 6499
passed 5GHz mark finally but at expense of drastic temps and 1.46 voltage, probably reached limits of effective h100 cooling

4.8 GHz is very stable with temps around 73C and 1.4 voltage, using 4.3 GHz/65C/1.3v as 24/7 though

great versatile cpu

589
post #1024 of 6499
Quote:
Originally Posted by SneakyBushNinja View Post

5ghz is where my H100 totally becomes incapable. My temps climb above 90c on a linpack. I did some bench runs at 4.3 vs 4.75 with Crysis 2, I got 0.1fps higher on a single run with 4.75, that's what made my mind up to drop to 4.3 for my 24/7.
264
I've considered going for a per core setup, but it didn't work out within 15min of testing so I gave up on the idea.

IDK what is up with that cause my H100 with Artic Silver @4.750 stays at about 65-68 full load....even linpacks
Quote:
Originally Posted by tsm106 View Post

I suppose you need more cooling, well if you wanted to clock it at 5ghz? I wondered previously if the H100 could handle the onslaught of 5ghz. It seems it may not be enough? In comparison my full loop keeps this 3820 running 5ghz @ 70c or under, give or take.

i defiantly think that it can handle 5Ghz, especially if you do the separate tank mod mod

Quote:
Originally Posted by tsm106 View Post

Hmm, I've got 5.1ghz prime stable now, temps are excellent at 73c but voltage is getting up there at 1.512v. I shudder to think what 5.2ghz is going to require.

WOW that is still a pretty good temp for that clock
post #1025 of 6499
Hey Guys.... Just read through this entire thread.... that took a while. Anyways I tried my first OC you can check out my sig for parts. Here are the pictures. I'm pretty sure my bottleneck is my RAM because of the low frequencies and its about 2.5 years old. Here are the pictures. The max temps was when I was running prime95 for 2 hours but on IBT none of my cores really got over 70 C. 338

338

This thread is awesome and a wealth of information. Anyways besides my RAM I need to fix my vcore because I manually set it at 1.4 but the vdroop set it to 1.38 during the testing so I figure I can safely allow it to go down. When I have more time I will mess around getting the best vcore.


PS: my computer is used for rendering so I figure I need to run Prime95 hour about 18 hours to be satisfied. So let me know what you guys think!!

thumb.gif
post #1026 of 6499
^Pretty good OC for a first time!
On 12hr P95 runs though, expect high temps tongue.gif
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post #1027 of 6499
Currently I'm watercooled with the XSPC RX240 so I'm hoping not to exceed mid 70s plus I need to get that vcore down as much as possible =D
post #1028 of 6499
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post #1029 of 6499
5309 is awesome !
post #1030 of 6499
Brought a new i7 3820 off of eBay, only got it up to like 4.875. I tried 5, but the voltage of 1.53 overwhelmed my water loop. I wasn't satisfied when I looked at the leaderboards on OCN and saw alot of people with 5s. So I picked up a i7 3820 with a newer batch number and luckily hit 5.0 at 1.48 vcore. Guess I'll have to sell that eBay one, it was $30 cheaper than Fry's. Sometimes trying to skimp isn't worth it biggrin.gif. 336
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