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 Post subject: Nvidia 790i Ultra chipset cooling
PostPosted: Thu Mar 05, 2009 1:04 am 
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Joined: Tue Jul 08, 2008 4:27 am
Posts: 10
Location: Walton on Thames, Surrey
Hi all
I'm investigating the possibility of implementing a quiet water cooling system just to cool my motherboard chipset.

I've got excellent CPU cooling and good airflow through the case.. my two GPU's rarely ramp up their fan speed (basically when playing Crysis).

The problem is after 30mins of playing the aforementioned game, the computer will generally freeze (no pun intended!).

On reseting the machine and inspecting the bios hardware readings... the Northbridge temperate reads 80C or more (currently set to 1.44v for Prime Stability).

The board chipset is a Fusion system with 3/8 connectors...

Any ideas?

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 Post subject:
PostPosted: Thu Mar 05, 2009 1:56 am 
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Joined: Tue Nov 04, 2008 6:03 am
Posts: 364
Location: Sweden
Your first action should be to re-seat the current cooler, making sure its got good thermal connection to the chip.

If you've got a good airflow through the case the original cooler should be sufficient.

BTW, what mobo model do you have?

Cheers
Olle


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PostPosted: Thu Mar 05, 2009 2:08 am 
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Joined: Tue Jul 08, 2008 4:27 am
Posts: 10
Location: Walton on Thames, Surrey
As it says in my sig... Asus Striker II Extreme.

That is a good point actually, I now recall people saying that the whole heatsink/pipe assembly should be removed, cleaned up and decent thermal paste applied.

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Q9450@3.2, Thermalright Ultra 120 Extreme + Scythe Kama PWM 120, G.Skill Ripjaw PC3-16000C9 (4x2GB), Asus Striker II Extreme nVIDIA nForce 790i Ultra, 2 X Zotac 8800GT (680/950), Enermax Pro82+ 625W PSU, WD6400AAKS RAID 1, VelociRaptor 150 & Antec P182 with Noctua NF-S12 1200RPM throughout.


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 Post subject:
PostPosted: Thu Mar 05, 2009 3:22 am 
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Joined: Tue Jul 08, 2008 4:27 am
Posts: 10
Location: Walton on Thames, Surrey
I've ordered some TIM remover. I'll remove the heatsinks, clean them up and apply my AS5.

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Q9450@3.2, Thermalright Ultra 120 Extreme + Scythe Kama PWM 120, G.Skill Ripjaw PC3-16000C9 (4x2GB), Asus Striker II Extreme nVIDIA nForce 790i Ultra, 2 X Zotac 8800GT (680/950), Enermax Pro82+ 625W PSU, WD6400AAKS RAID 1, VelociRaptor 150 & Antec P182 with Noctua NF-S12 1200RPM throughout.


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 Post subject:
PostPosted: Thu Mar 05, 2009 7:46 am 
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Joined: Tue Dec 23, 2008 11:15 pm
Posts: 194
Location: *-Home-*
hi!

I have posted this topic in here:

http://www.silentpcreview.com/forums/vi ... hp?t=52612

Take a look! I am building a watercooling for my 790i ultra

Thank you

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