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Fan Control with Dell XPS 730x with upgraded Motherboard

post #1 of 5
Thread Starter 
I've recently upgraded my Dell XPS 730x's motherboard to the MSI Big Bang XPower so that I could use more than 6GB of Ram. In doing so, I've pretty much lost control of my fans. All the fans are connected to a master control board that worked with the Dell Software for control. Based on what I've found online, the only way to regain control over the other fans through the master control board is to install an NVidia card and then I'll be able to use Nvidia System Tools program. Apparently any Nvidia card will do, but I'm not sure what's the cheapest card I can buy that is compatible with my system.

When I use SpeedFan, I can set it up to monitor and adjust for the CPU temperatures and it will adjust the CPU fan accordingly. My temperature readings seem to be relatively consistent through CPUID HW Monitor, Core Temp, and Speccy. However, when I check the CPU temp using the OC Dashboard that came with the MB it always shows approx 5 degrees cooler. No biggy for now.

From what I've read, all the fans have the proprietary Dell 5-pin (4 wire) connectors. Would it be easier to rewire the fans to use 3-pin connectors and connect to the motherboard directly? Is there a potential danger in doing this? Will I be able to vary the speeds? If I connect it to the mobo can I leave all the fan regulation to the BIOS? Should I just get a cheap Nvidia card (specific suggestions more than welcome) just for fan control? Is the CPU fan the only one that needs to really be regulated based on what I'm working on and should just get a fan controller for the other three fans and only connect the CPU fan directly to the motherboard? Just buy new fans to connect to the mobo/fan controller?

There is a FB group dedicated to XPS 730x owners and upgrading motherboards. The fan control issue is a known issue, and getting an Nvidia card is sort of the accepted solution. I thought I'd check here for a second opinion, if you will. smile.gif
http://www.facebook.com/topic.php?uid=93963126733&topic=15967 (In case I'm not being clear enough about my issue(s), please see the second paragraph #4 and you'll see what I'm trying to describe in greater detail.)
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
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IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
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post #2 of 5
Thread Starter 
I guess since I am asking for more than a yes or no answer and seeking suggestions, I should ask if it'd be worthwhile for me to replace the stock CPU heatsink with something like the Noctua NH-D14. I couldn't really find any rating or reviews on the Dell stock heatsink but this seems like it would make a noticeable difference based on reviews. Thanks again!
Edited by IceBoy109 - 2/22/11 at 11:52pm
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
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Reply
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
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post #3 of 5
ditch the dell case, most have poor airflow and proprietary connectors (fp/fan/usb ect..)

you can get a good case from newegg or microcenter for $40-50

if your using the stock cooler, the 212+ is a great budget upgrade
post #4 of 5
Thread Starter 
Thanks for the response, ffejrxx. I was really hoping to avoid just getting a new case. One of the 730x's most praised feature was in the case design and have read pretty decent reviews about it (aside from it's weight). That being said though, if getting a new case would resolve my fan control issues, it's worth considering. Thanks! =)
Edited by IceBoy109 - 2/23/11 at 3:13pm
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
  hide details  
Reply
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
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Reply
post #5 of 5
Thread Starter 
I recently upgraded my RAM to what is listed in my profile. Other than that no changes have been made to my system yet in terms of cooling. It's been about 3 days since I reseated my cpu heatsink and using Core Temp, Speccy, Hardware Monitor, and SpeedFan I can see that my average temperature has actually increased about 7C-10C on average when idling and under load. I suppose the larger ram modules could have blocked some of the airflow, but it seems a bit extreme.

I was just wondering if this is indicative of anything. From what I've read, using AS5 usually ends up with a lower temperature as time passes, whereas I'm having an increase even though room temperature is still the same.

Thanks in advance.

(Maybe I should make a new thread for this question?)
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
  hide details  
Reply
IceBoy's System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 2.93 GHz MSI Big Bang-XPower (MS-7666) ATI Radeon HD 4850 (x2) Crossfire G.SKILL Ripjaws Series 12GB (3 x 4GB) 
OSMonitorCase
Windows 7 Pro 64-bit 2x Dell 2405 Dell XPS 730x 
  hide details  
Reply
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