H80 fans change them or keep them

bakes0310

bakes0310

bakes0310

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22 Oct 2004
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As title really, im gonna get a H80 to cool my cpu. And i was wondering is the 2x 120mm good enough or should i upgrade them.

I dont care about noise as i wear headphones and i rather have the cooling performance so spec away:D
 
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I replaced mine with:-

2 x Akasa AK-FN059 120mm Ultra Quiet Viper Cool Fan

which I found quieter and dropped my temps.
 
I've got a H70 and with a I7 2600K @4.5Ghz (1.35v) running Prime95 for 4 hours my average temps are about 70 degrees.
 
This is in a Fractal Design Define XL, for me it was much better having the fans "suck" air into the case than "blow" it out.
 
Gonna hit the order button (maybe) in a min on the following items:
Corsair Obsidian 650D
Corsair Hydro H80
Corsair Vengeance 8GB (2x4GB) DDR3 PC3-15000C9 1866MHz Dual Channel Kit
2X Akasa AK-FN059 120mm Ultra Quiet Viper Cool Fan - 3/4 Pin
Akasa AK-CB002 PWM Fan Splitter Cable

I changed my mind on the fans im going with the ones you got, them see really good. Now im sitting here thinking should i press the order button or not:p
 
You plug one into CPU Fan MOBO header, one into a MOLEX, then you have 3 spare connections for fans.

Looks good to me, BUY :)
 
Put 2 vipers on my H80 yesterday, here is how my fan connection layout is at the moment if it helps:

Pump - Molex, 3pin plugged into case fan header (so I can check the pump is working fine, it will report a fan speed of ~2000rpm if its fine)
P/P Vipers - Plugged into CPU_FAN and CPU_FAN_OPT full PWM control
Xigmatek Exhaust - 3pin into H80 block, so exhaust increases in sync with PWM (40c water temp).

Overall my temps have dropped a good 3-4c with the vipers in, before a prime load would give about ~64c now its sitting around ~60c @ 4.7ghz 2600k.

Forgot to mention too, the noise difference between the vipers and stock corsair fans is huge, granted the vipers aren't exactly silent fans above 1300rpm but still a huge improvement over the corsair jet fighter fans.
 
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While im waiting for the gear i thought id ask about the overclocking. Im pretty new to it, ive only oc my current amd system and never tried it with intel. Ive done some research basically i do the following:
1. Press the autoclock button and bam instant overclock or to do it yourself increase the multiplier and the vcore (never higher than 1.35-1.38) when you need to.
2.Check temps (coretemp program) run a stresstest program (intelburn or prime95)
3. keep going till stable and temps are ok

Is that right?

Also with running the stress test programs how long should i run them for. Ive read some members run prime95 for 4 hrs or 8.
And some members use intelburn and run it 5 times in a row.
What should i do?
 
Leaving the vcore on auto will be fine for the majority of sandybridge overclocks, so just increase the multi. But how high are you planning on taking the chip? as 4.8ghz and above is really where you need to start setting a manual vcore.

Also what vcore is required for a set speed changes from chip to chip, example at 4.8 I'm nearly stable (requires a few more hours prime) at 1.312v, while leeroy on here can only get stable at 1.46v. Luck of the draw
 
I posted this in it's own thread but no reply yet, you guys might be able to answer as the Khuler 920 has similar performance to the H80:

tommybhoy said:
I have a lapped True 120 Ultra and was considering to get an Antec KUHLER H2O 920 for £64 delivered, would it be an improvement over the True, or not?

I'm planning to get the new FX-8150 and overclocking it, will the Kuhler cool it better than the True or not with respectable noise levels.

Noise will be an issue and the fans will be getting turned to their lowest settings when in stock mode.

As my True has a single fan with an exhaust on the P180, with the the Kuhler having two fans, I will be replacing these fans with the two apache's currently being used.

Any help?
Click to expand...

The price goes back to normal on Monday so that's why I'm pushing for any info.
 
pgi947 said:
Leaving the vcore on auto will be fine for the majority of sandybridge overclocks, so just increase the multi. But how high are you planning on taking the chip? as 4.8ghz and above is really where you need to start setting a manual vcore.

Also what vcore is required for a set speed changes from chip to chip, example at 4.8 I'm nearly stable (requires a few more hours prime) at 1.312v, while leeroy on here can only get stable at 1.46v. Luck of the draw
Click to expand...

As high as i can get it aslong as the vcore goes no higher than 1.35-1.38. I would like 4.6Ghz-4.8Ghz which i hope i can get too.
 
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