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Onboard LAN not recognized

By CoreyX64 ·
Ok im running Windows 7 RC x64 and my computer is a microATX mini tower. The card i bought had a full bracket for ATX, so it didnt fit. i modified it yesterday, but all that time before the card was just plugged into the PCI slot just laying there doing its job with the antenna out the back.

yesterday after modding the bracket i put the card in like it is supposed to be, mounted to the case with the bracket. when i booted up, my onboard LAN didnt work. drivers are fine, it wasnt even loaded in dev mgr. i think this might be an IRQ issue, as ive had this happen b4, but with a PCI video card.

so my question is, if all this time (several months) i had wifi and lan both working, and now it doesnt because of the bracket, what could be causing it? could it possibly be that before, the card may have not been plugged in the slot all the way?

PLZ help me i need my gigabit lan back. FYI my board is a gigabyte eg45m-ds2h. the lan chip is onboard, MFG realtek. the wifi card is a ralink RT61 turbo wireless lan card. Here are pictures if it helps, but i doubt it:
http://www.mediafire.com/imageview.php?quickkey=yixy0ddwoji&thumb=4

Thnaks in advance for all tips/help suggested.

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All Answers

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There's an easy fix for BOOTMGR missing

by Jacky Howe In reply to tinkering

http://www.howtogeek.com/howto/windows-vista/fixing-bootmgr-is-missing-error-while-trying-to-boot-windows-vista/

Windows Boot Manager (Bootmgr.exe)

http://msdn.microsoft.com/en-us/library/aa468626.aspx

What is the Wattage and the age of the PSU in that System as I've seen a few that have taken out the Onboard LAN.

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fixed it

by CoreyX64 In reply to There's an easy fix for B ...

its a 300W PSU, never had ANY problems since i built this system. just randomly stopped working after wifi card install.

anyway i did fix the bootmgr issue by inserting the W7 disc in and it said boot problms detected CLICK REPAIR TO FIX THEM.

coundnt be easier.

it boots, but it only worked when i disconnected my slave HDD, which is there only for TV recording storage --- its not involved in booting at all.

ill try reconnecting and seeing if it still works.

The reason i started this question chain is because

a) wanted to fix the problem
b) wanted to know how the problem was caused

weve gotten thru a. but what i need to understand is how/why did this happen out of NOWHERE? if its unexplainable, just say so. i understand how iffy windows can be, considering the millions of HW configs it has to run on. and also this is not an Official release so that is also a factor.


thanks for the tips.

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SuperGrub

by tstreich In reply to tinkering

This is an incredible utility. Boot it up and it will bring up a menu (which has some pretty dang funny items on it) and choose which OS you want to boot which I believe will show up as "X: Windows-why would you want to do this??". You should be good to go after that...

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tried that

by CoreyX64 In reply to SuperGrub

well i tried a linux live cd and confirmed the lan chip is bad. now everything else on the board is dead (audio, keyboard port, hdmi, dvi, front panel, ODD, firewire, etc. basically everything but power and usb and vga. im getting a new board anyway so im hoping to return this if gigabyte has the 3yr warranty that i read up on.

thanks anyway,
corey

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tried that

by CoreyX64 In reply to SuperGrub

well i tried a linux live cd and confirmed the lan chip is bad. now everything else on the board is dead (audio, keyboard port, hdmi, dvi, front panel, ODD, firewire, etc. basically everything but power and usb and vga. im getting a new board anyway so im hoping to return this if gigabyte has the 3yr warranty that i read up on.

thanks anyway,
corey

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You could try the Ultimate Boot CD as well here

by OH Smeg In reply to MORE BAD NEWS

To test all of your Hardware.

http://www.ultimatebootcd.com/download.html

If that shows that everything is OK you can try the Emergency Boot CD to repair the Partition/HDD or whatever.

http://download.cnet.com/Emergency-Boot-CD/3000-2242_4-10868**9.html

Col

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ive used UBCD b4

by CoreyX64 In reply to You could try the Ultimat ...

but never with this issue. last time it was very helpful. ill give it another shot. however the BIOS ITSELF says theres no LAN.

soooooooooooooooo... if i am correct

bios determines what devices OS's see (like if there disabled, etc.)

LAN isnt even an option anywhere

it says onboard LAN enabled but the LAN check utility within the BIOS says "NO LAN CARD INSTALLED. INSTALL LAN CARD AND REBOOT."

its quite obvious its toast but i still want to twiddle with UBCD for fun. just so i know how to use it to diagnose crap like this in the future.

thanks,
- Corey -

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BOOTMGR issue

by CoreyX64 In reply to MORE BAD NEWS

what i did was insert the install disc into another computer and copy bootmgr right from there onto the root of the source HDD. im going to boot it from the original system and see if that fixed it...

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The 64 dollar question

by Jacky Howe In reply to Onboard LAN not recognize ...

I think that the PSU could be at fault here as it is only 300W and it's not booting with the second drive attached. As I said in my last post I have seen Onboard devices malfunction due to the PSU failing.

I would purchase a more adequate Power Supply if you are replacing the Motherboard. Get one in the 600W-700W range. Do a Google for Antec brand PSU's as they are by far the best quality.

You can test your PSU using the instructions below:

testing your psu with a multimeter

http://www.driverheaven.net/guides/testingPSU/

http://www.ochardware.com/articles/psuvolt/psuvolt.html

http://www.journeysystems.com/?powercalc

This is also an interesting Article

Getting to know your power supply by Faithe Wempen

http://articles.techrepublic.com.com/5100-6349-1046822.html

Someone else may chip in with their thoughts but that's where I would start.

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I have a 500w to test with...

by CoreyX64 In reply to The 64 dollar question

I can't use any other psu other that re one that came with it. I can always get the same one though. The board and case (when I purchased it) but the case has an extremly rare psu only made by the case mfr. By looking at it, it looks just like a server psu, but the dimensions are theholdback here. I've seen other server psus that look like they fit, but they are longer than this one, and it would not clear the case fan. Rite now the psu is TOUCHING up against the case fan. Ill test with the regular high watt psu and see what happens. If it always worked with this 300w, does thatmean the psu is weaker than it originally was at time of purchase?

Also, is it weakened if USB devices stay connected to charge while the system is off? It still outputs to the USB when it's off so I thoguht that waswat it was for.

I'll try that and see what happens.
Thanks

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