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Asus P5N32-E Overclocking Guide - Page 109

post #1081 of 5659
Quote:
Originally Posted by t4ct1c47 View Post
I'm useing a Nocuta NU-06 on my NorthBridge and the stock cooler on the SouthBridge. As far as I'm concerned, the Northbridge is the main chip that needs uprated cooling as it sees the biggest increase in vCore as you raise FSB. There's very little need to increase the Southbridge vCore and I'm able to run 3.6Ghz 24/7 without any problems. However, I do have a chassis fan blowing air over the area where the SouthBridge is located to improve the cooling.

The stock vCore for the Southbridge is 1.50v and I currently have it running at 1.55v with my FSB at 1600Mhz. The NothBridge is running at 1.55v aswell, though its stock vCore is only 1.25v.
Thanks. I think I'll probably start out with a Noctua on the NB (do you have a fan on it or is it just being cooled by the airflow spilling from the CPU cooler/exhaust fan?) and leave the SB alone for a while.

Did you put any little heatsinks onto the VRMs or have you left them bare? Could you give me a guestimate as to their size? I was planning on going to the local electronics store and just having a look for small cheapy sinks rather than ordering anything specific but I need to know how big I'm looking for.

Thank you for the information.
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post #1082 of 5659
Quote:
Originally Posted by draxlondon View Post
Thanks. I think I'll probably start out with a Noctua on the NB (do you have a fan on it or is it just being cooled by the airflow spilling from the CPU cooler/exhaust fan?) and leave the SB alone for a while.
It's possible to attach a small fan to the Noctua but I don't use one. I'm replaceing the window on my chassis side panel with some mesh so I can permanently secure a fan to it to blow over the Southbrdge.

Quote:
Originally Posted by draxlondon View Post
Did you put any little heatsinks onto the VRMs or have you left them bare?
I'm using the same heatsinks to cool my MOSFET's as Robilar, the Swifttech MC-21. I strongly recomment purchaseing a set of coolers for the MOSFET's as I hear cognoscenti killed her last board by leaveing them bare.

Quote:
Originally Posted by draxlondon View Post
Could you give me a guestimate as to their size?
You'll want four that are each about 1.5 cm long and 1cm wide to cool the eight MOSFET's. Eight if you end up replaceing the Southbridge cooler too.
post #1083 of 5659
Thread Starter 
Quote:
Originally Posted by mba2dna View Post
I've built at least 5 rigs on my own without major issue. But this time.... Built a rig almost a month without completion yet. May be I am very bad luck this time...

I bought the mobo, cpu, psu brand new and got raptors, sound card, ram from 2nd hand market. It took me 2 weeks to gather essential parts and built the system a month ago.

Very happy that the system could boot when it was first assembled naked (one 8800GTX,2G ram and my old Enermax 600W). When installing the windows, the system could not post after reset (a process in window setup). I suspect it was the mobo problem as I tried swap another 8800GTX, another 2G ram, another psu, it could not post as well. Took the mobo to the shop and tested, no problem. OK, it should be cpu problem then. However, the office hour of Intel agent is exactly the same as mine, such that I did not have time to go for RMA. I bought a 2nd hand E6300 as workaround next day after work. OK, plugged the cpu it and the mobo could post. So, I went to sleep.

I bought the rest of the part next day after work - a 1000W psu (it was out of stock before) and prepared for the SLI connection. Rush back home and connect everything. Power on the new psu... oh my god, it screamed better than my girlfriend. I checked everything alright except that rpm sensor did not give voltage. The psu was actually functioning, it just alerted me the fan (sensor) did not work! It screamed everytime the pc reset until I pressed that red button at the psu. Took the psu to the shop next day and exchanged a new one. The new psu worked fine at my rig and intended to continue the setup next day...

Next day, I was happy again..... until I install the forceware. After finished the installation, it required reboot, but could not post again. Swap everything again, should not be the problem of RAM, psu, video card card. This time it should be cpu or mobo problem? Borrow another E6420 from my friend next day and plug to my mobo, it could not boot. So mobo was dead this time.

Next day lunch time, I took the mobo to Asus service center, they tested the mobo and agreed to give me a new one. However, they did not have stock, and I have to wait for a week.

I got the new mobo a week later together with the rma E6420. Reconnect everything, the process seems smooth - it post'ed. Then I have time to complete the windows, drivers installation with few benchmark s/w. Tweaked the system about a week and finalize few settings. Another day I decided to put all the parts into the case, spent me about 2 hours (the case is small for 2 super long video cards). Connect the ac plug, it could not post... took out everything and power on again naked, no problem. Put them in the case again, no post. Took them out again, post! I don't know why.. should not be the case the the screw of cpu heatsink touch the case, this should not create the problem. Anyway, I sticked a tape underneath the mobo. This time it posted. I then ran the ortho 1 days to test the stability and observed the system temperature when they were in the case. Fine, idle at 34C and full load at 53C (room temp about 28C). Happy again...

Yesterday I tried to oc my 8800gtx pair. They could go up to 630/2000 without artifact. But I could only gain 200 in 3dmark06. I did not know why. I would investigate this later as it was quite late. Return all the settings to default. Before went to sleep, I checked email and surfed for few minutes. The system sudden hang! Could not post after reset! No time to check why as it was 4:00am.... time to bed (to be continued)
I've had this kind of adventure before as well but not with this board. You have had so many separate issues, I can't figure out what the common thread would be. The chance that you have had two bad boards is very unlikely. Is there a common element to the various build configs?
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post #1084 of 5659
Thread Starter 
Quote:
Originally Posted by draxlondon View Post
Thanks. I think I'll probably start out with a Noctua on the NB (do you have a fan on it or is it just being cooled by the airflow spilling from the CPU cooler/exhaust fan?) and leave the SB alone for a while.

Did you put any little heatsinks onto the VRMs or have you left them bare? Could you give me a guestimate as to their size? I was planning on going to the local electronics store and just having a look for small cheapy sinks rather than ordering anything specific but I need to know how big I'm looking for.

Thank you for the information.
Get two sets of the Swiftech MCP21 sinks. They fit exactly to the VRM's. About 30 pages back in this thread I posted pics
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post #1085 of 5659
hi again guys, do you think the cut down radiator thingies on my board will cool it ok or will i need to install some specialist cooling on them, if so which do i use and are they hard to install? (pic attached)

Also i just put my finger on the extreme spirit 2 cooler next to my cpu (northbridge is it?) and it almost burnt my finger, is this normal? In pc probe it has a red light on my NB core saying 1.52v is too much, but its set to auto so im wondering what to do?

Thanks guys??!!!!!
    
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post #1086 of 5659
Quote:
Originally Posted by Robilar View Post
Get two sets of the Swiftech MCP21 sinks. They fit exactly to the VRM's. About 30 pages back in this thread I posted pics
I was looking into the sinks since I live in the UK and they're reasonably difficult to find with a £ sign next to them. Then I looked at Maplin (UK Radio Shack equivalent) and they sell every shape and size of anodized aluminium sinks for about 50p each - perfect
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post #1087 of 5659
Quote:
Originally Posted by draxlondon View Post
I was looking into the sinks since I live in the UK and they're reasonably difficult to find with a £ sign next to them. The I looked at Maplin (UK Radio Shack equivalent) and they sell every shape and size of anodized aluminium sinks for about 50p each - perfect
why not just chop off the nb and sb cooling from ur stock coolers, i did works great! there goes the warranty lol
    
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post #1088 of 5659
Quote:
Originally Posted by overclockerbiggsy View Post
why not just chop off the nb and sb cooling from ur stock coolers, i did works great! there goes the warranty lol
That's kinda the issue

I'm actually slightly concerned about the sinks being adhered to the VRMs since it'll be difficult to get them off without damaging them. Obviously I hope not have to RMA the board but...
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post #1089 of 5659
Quote:
Originally Posted by overclockerbiggsy View Post
hi again guys, do you think the cut down radiator thingies on my board will cool it ok or will i need to install some specialist cooling on them, if so which do i use and are they hard to install? (pic attached)
I guess you could always cut of the small radiator on the stock Northbridge cooler to keep your MOSFET's cool. Its going to look mighty suspect if you ever have to RMA your board though.

Quote:
Originally Posted by overclockerbiggsy View Post
Also i just put my finger on the extreme spirit 2 cooler next to my cpu (northbridge is it?) and it almost burnt my finger, is this normal? In pc probe it has a red light on my NB core saying 1.52v is too much, but its set to auto so im wondering what to do?
The Northbridge only needs up to 1.55v when the system is running at 1600FSB. If AUTO is setting it to 1.52v at default FSB then I would highly recommend setting your vCore to 1.3v in the BIOS so that it runs at 1.25v which is the Northbridge's normal vCore.
post #1090 of 5659
Quote:
Originally Posted by draxlondon View Post
That's kinda the issue

I'm actually slightly concerned about the sinks being adhered to the VRMs since it'll be difficult to get them off without damaging them. Obviously I hope not have to RMA the board but...
I pulled both off with no force is not adhered in any way dude. Just pull em off and chop the radiators stick those back on and add Extreme spirit 2's to the bridges like in my pic.

Plus if u kill the board thru overclocking i doubt u will get a replacement anyways.

I have to admit i was scared too before i took mine off but after id done it i dunno what i was worried about tbh it was very easy and i never did anything like this before those mini heatsinks robilar used dont look anywhere as good as the stock radiators.
    
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