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  #1 (permalink)  
Old 7th April, 2003, 08:12 PM
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vdd mod cooling on 8rda+

hi guys,
today i also did the vdd mod! i read about the explosion of the chip u do the mod on or the chip similiar to it in juxta position. what did you do with them?
do u cool them or did you leave them alone??
i touched both and they are a little bit hot...
thx 4 replies

mal0
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Old 7th April, 2003, 09:42 PM
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If you can get a Vantech Iceburg kit, you put the cooling heatsink fan on the northbridge, and a heatsink on the southbridge, they go on perfectly, 12 dollars american, can you find that over there?
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Old 7th April, 2003, 09:59 PM
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anyone else think or know if the zalman with a 40mm fan would be a better choice for cooling the NB, or do u know for a fact the iceberq cools it better?
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Old 7th April, 2003, 10:53 PM
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I got the iceberg, and its copper unlike the zalman. Mr. Icee uses one, but it would be better if you epoxied a cheap small cpu heatsink on it. Thats the only problem with overzize coolers, the fitting is not standard (even though the board is designed to take a big heatsink).
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Old 8th April, 2003, 01:08 AM
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I don't think

mal0 is asking about the n or s bridge chips. He's asking about the voltage regulators or whatever that chip is that you perform the mod to, unfortunatley , I don't know the answer but I'm pretty sure not too many people attached heat sinks to those chips. I didn't.
HF
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Old 8th April, 2003, 02:51 AM
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I have the Vantec Copper heatsink on my Northbridge and the regular copper Passive heatsink on my Southbridge.

i have also put heatsinks on the Mosfets for better cooling.

if you look on this site Thermal pics then you will see why i put them there.

Everything is working great.
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Old 8th April, 2003, 03:07 AM
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Re: I don't think

Quote:
Originally posted by hocusfocus
mal0 is asking about the n or s bridge chips. He's asking about the voltage regulators or whatever that chip is that you perform the mod to, unfortunatley , I don't know the answer but I'm pretty sure not too many people attached heat sinks to those chips. I didn't.
HF
Yes I did realise what he meant but continued to talk about something else because the other reply was about it. Actually I have not done the Vdd mod, but have put a tiny piece of copper (an offcut from making the MOSFET cooling) on the second chip. I left the first chip clear so I could do a Vdd mod in the future.
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Old 8th April, 2003, 08:27 AM
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@ all: as masteratarms noted - i didn't ask about north or southbridge colling but about cooling the voltage regulator chips. therefore have a look on geekbyte's page on 'southbridge' in the smaller square u can see the chip i was talking about.
@ geekbyte - your page is really great stuff!

sorry - i didn't write anything about my sys, 'cause i put it in my signature and have forgotten to turn it on?? anyway, on my northbridge, there is working a zalman with a 40mm fan and on the southbridge there the zallman is working passively....
mal0
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Old 8th April, 2003, 06:40 PM
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I blew up the very chip you're talking about. The one right next to the vdd chip. My problem stemmed from hua. HeadUp A**. I used a potentiometer and instead of 1.000 my reading was 0.1000. Needless to say, a bit too much voltage was passed thru and the chip next to the vdd (to the left) popped and bubbled, or bubbled and popped. I am currently at 1.76 volts on the vdd on a new mobo and don't expect a problem. I think you need to stay below 2 volts and maybe a lot lower than that to be on the safe side. Does anyone know where I can get those regulators? I might try my hand at salvaging the mobo by replacing them.
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Old 8th April, 2003, 07:20 PM
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anyway - i fitted some small hs on both chips - hope this helps
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  #11 (permalink)  
Old 10th April, 2003, 08:38 AM
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Hey guys........
I have better solution to cool the NB. Vantec Iceberg is good but there is better solution, and cheaper also .
The monster is called TITAN CUV2AB (http://www.titan-cd.com/cuv2ab_n.htm) (6 US Dollars here in Bulgaria) and the specs are:
External appearance Length : 55.8 mm
Width : 55.8 mm
High : 14 mm
Copper color
Fan Dimensions : 50 x 50 x 10 mm
Rated Voltage : 12 V DC
Rated Current : 0.10 A
Power Consumption : 1.56 W
Rated Speed : 4,500 RPM
Max Air Flow : 10.25 CFM
Max Static Pressure : 2.88 mm-H2O
Noise Level : < 28 dBA
Tolerance : ± 10 %
Bearing Type : One Ball Bearing
Life Time : 50,000 Hours
Housing 3 Wires, 3 Pin Connector

The VANTEC ICEBERG has only 3.5 CFM airflow. http://vantecusa.com/iceberq_copper.html

I use the TITAN CUV2AB for my NB and it works exelent. With a little mod you can mount the TITAN on SB also.
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Old 10th April, 2003, 12:00 PM
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Quote:
Originally posted by VIPER_HWBG
Hey guys........
I have better solution to cool the NB. Vantec Iceberg is good but there is better solution, and cheaper also .
The monster is called TITAN CUV2AB (http://www.titan-cd.com/cuv2ab_n.htm) (6 US Dollars here in Bulgaria) and the specs are:
External appearance Length : 55.8 mm
Width : 55.8 mm
High : 14 mm
Copper color
Fan Dimensions : 50 x 50 x 10 mm
Rated Voltage : 12 V DC
Rated Current : 0.10 A
Power Consumption : 1.56 W
Rated Speed : 4,500 RPM
Max Air Flow : 10.25 CFM
Max Static Pressure : 2.88 mm-H2O
Noise Level : &lt; 28 dBA
Tolerance : ± 10 %
Bearing Type : One Ball Bearing
Life Time : 50,000 Hours
Housing 3 Wires, 3 Pin Connector

The VANTEC ICEBERG has only 3.5 CFM airflow. http://vantecusa.com/iceberq_copper.html

I use the TITAN CUV2AB for my NB and it works exelent. With a little mod you can mount the TITAN on SB also.
I've heard of a few people using these and apparently they get job done, but "copper color?" It might have more airflow (cheaper coolers usually have overrated airflows and underrated noise levels) but I wonder how it would compare with the vantec in actual cooling.
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Old 10th April, 2003, 12:22 PM
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Quote:
Originally posted by k1114


I've heard of a few people using these and apparently they get job done, but &quot;copper color?&quot; It might have more airflow (cheaper coolers usually have overrated airflows and underrated noise levels) but I wonder how it would compare with the vantec in actual cooling.
Ohh forgot to mention, the copper color is for the fan NOT the radiator. The radiator is made of copper. With the EPoX stock cooling and NB rev. A3 with my old 8RDA+ I was able to hit 198-200, when I mounted the TITAN i was able to hit 213 sync. with 1 stick TwinMOS and 207FSB with 2 sticks sync Dual Channel enabled.
It is good product and is cheaper than Vantec .
I have a smal 50mm fan which is rated at 10cfm also and when I put the Titan fan next to it I think the airflow is the same. And the fan of the Titan is very quiet.

P.S. The Titan is very heavy for such small gadget.

Edit: For cooling of the NB can be used a Socket A coller from AKASA the model 268. With a little mod you can prepare the AKASA to fit on the NB and it would be better from all chipset/vga coolers . And if you want maximum cooling you can mount a Thermalrigh SK6 for example or to watercool the NB .
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Last edited by VIPER_HWBG; 10th April, 2003 at 12:35 PM.
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Old 10th April, 2003, 01:39 PM
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An alternative to a sk7/slk700 could be Coolermaster HSC-V62 £12 in the UK, copper cpu HS 60mm/60mm (the NB sinks 50mm/50mm with 1/2cm of clearance either side) and a autoadjusting 60mm delta on it running at 3000RPM up2 30c and cranking its self up2 max RPM when it gets toasty, im tring to get the weight of it from scan right now

508g for that HSF is that too much of a strain to put on a AS epoxed 3.5mm NB core?

pretty heavy aint it.
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Last edited by Maelstrom2160; 10th April, 2003 at 02:28 PM.
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