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RE: A new type of mobo: Intel Server Mobo

219.79.25.241

In Reply to: RE: A new type of mobo: Intel Server Mobo posted by cics on May 30, 2010 at 03:21:36

For stability, Intel MBs do not usually provide low voltage setting in BIOS and may not be a good candidate for CMP^2.

With a view to improving current consumption and SQ, I tried and successfully removed the sound and network chips together with some regulators on board my GA-G31M-S2C and an older Intel MB. I found that despite the devices are being turned off in BIOS, the regulators are still running. The chips were removed by using a hot air gun and solder iron. The important thing is that after removal of the chips, the MBs boot up without any problem.

I believe the BIOS setting is crucial and I like the flexiblity and stability of the GA H55M UD2H. Next step, I will try to remove unnecessary chips from this MB.

Follow Ups:

Very interesting... - theob 09:59:28 05/30/10 (9)
...is it possible to take some pics and show us which chips you removed?
- RE: Very interesting... - Mihaylov 13:22:11 05/30/10 (8)
  I support the request. It is very interesting.
  - RE: Very interesting...SOUND & LAN CHIPS REMOVED - jackwong96 05:03:45 05/31/10 (7)
    See photos. Haven't got time yet to test the performace and current.
    
    Edits: 05/31/10 05/31/10
    - Quote: "devices are being turned off in BIOS, the regulators are still running". Could this explain 5V load? - cics 23:29:14 05/31/10 (6)
      You measured 2.34A on 5V which is surprisingly high. Would be keen to see new load after these changes?
      - Devices still draw current when being turned off in BIOS - jackwong96 06:41:43 06/01/10 (5)
        
        In Reply to: RE: Quote: "devices are being turned off in BIOS, the regulators are still running". Could this explain 5V load? posted by cics on May 31, 2010 at 23:29:14
        
        I'm going to build a CMP machine for another friend so I bought him a H55M-S2H for my experiment. I removed everything around the sound and network Chip, including regulators and transistors. See photo.
        
        Current Consumption decreased by about 0.1A after such removal. Capacitor leakage current should also be taken into account. The 5V is now drawing 2.25A @96K. Sound quality slightly improved.
        I can go on to remove the Jmicron IDE controller but I'd better stop here as this MB belong to my friend.
        
        Edits: 06/01/10
        
        RE: Devices still draw current when being turned off in BIOS - theob 07:29:16 06/01/10 (4)
        
        In Reply to: RE: Devices still draw current when being turned off in BIOS posted by jackwong96 on June 01, 2010 at 06:41:43
        
        can you please point out where the chips are removed? hard to see.
        
        RE: Devices still draw current when being turned off in BIOS - jackwong96 07:55:52 06/01/10 (3)
        
        In Reply to: RE: Devices still draw current when being turned off in BIOS posted by theob on June 01, 2010 at 07:29:16
        
        Photo.
        
        RE: Devices still draw current when being turned off in BIOS - jackwong96 09:50:00 06/01/10 (1)
        
        In Reply to: RE: Devices still draw current when being turned off in BIOS posted by jackwong96 on June 01, 2010 at 07:55:52
        
        The optical output and an OP amp were removed.
        The CPU fan and System fan PS was cut off.
        
        Edits: 06/01/10 06/01/10
        
        Bold Move : DVI to HDMI Convertor Removed - jackwong96 06:45:28 06/02/10 (0)
        
        In Reply to: RE: Devices still draw current when being turned off in BIOS posted by jackwong96 on June 01, 2010 at 09:50:00
        
        Two more chips, the DVI to HDMI Convertor chips for the DVI and HMDI output, were removed from the MB, with much hardship.
        
        Not sure about any reduction in current consumption, that's not the point. The importance lies with the good improvement in SQ brought about by the risky but worthwhile surgical operation. As you can image, two noisy video chips were severed.
        
        The last thing left, I belive, are a regulator and the Jmicron368 IDE controller. See pix below.
        
        Edits: 06/02/10 06/02/10 06/02/10
        
        RE: Devices still draw current when being turned off in BIOS - theob 08:35:48 06/01/10 (0)
        
        In Reply to: RE: Devices still draw current when being turned off in BIOS posted by jackwong96 on June 01, 2010 at 07:55:52
        
        thank you

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