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Thread ID: 140401 2015-10-05 19:10:00 PCIE Controller failed? kioti (17360) Press F1
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1409459 2015-10-05 19:10:00 Posting new thread to the one I posted titled Dead PCIE2 slot on mobo?
No Graphics card works when used in PCIE2 slot. Have onboard graphics I can use.
After having done some research into how signal gets to the Graphics card it would seem that the lack of input to a graphics card in the PCIE2 slot is because the Northbridge chip of the mobo has failed. Therefore I need a new mobo. Are there any discreet components in the path from the Chipset to the PCIE2 slot that I can check for failure? Putting the mobo in for professional repair/service does not seem worthwhile costwise.
Anyone have a ciscuit diagram for the mobo ?

Gigabyte GA MA74GM-S2 rev4 AMD Athlon II x4 630 4GB Adata DDR2 800Mhz W7x64 Ultimate
kioti (17360)
1409460 2015-10-05 20:02:00 Just a couple of points.
Did you disable the on board VGA?
Did you have your monitor connected to the PCI card?
Driftwood (5551)
1409461 2015-10-05 20:16:00 Driftwood, hi. I didn't disable VGA and the the monitor was connected to the PCIE2 graphics card. That card is failed now and no other card i use will produce output to monitor. Only the VGA out works, using the ATI Radeon 2100 (Microsoft Corporation WDDM) driver kioti (17360)
1409462 2015-10-05 20:39:00 I would try a known to be good graphics card & disable on board VGA in the bios, before you condem your motherboard Driftwood (5551)
1409463 2015-10-05 20:41:00 Just to mention, PCIE2x16 graphics cards I use that are known working cards ans have cooling fans that are powered from the card and not a pin header, the fans do not spin, so there is no power getting to the cards. kioti (17360)
1409464 2015-10-05 20:43:00 I have tried 3 cards that I have and none will work in the motherboard I have, but do work in the computers from where I take them. kioti (17360)
1409465 2015-10-05 20:52:00 Anyone have a circuit diagram for the mobo ?


mate, youre dreaming if you think you can repair this board . Dont even waste your time thinking about it.
Just replace it. Or use it as is.

How old is it, some gigabyte boards have/had 2 year warranty .
1101 (13337)
1409466 2015-10-05 21:07:00 I'm away to town now for the day and will not be home til 20:00 hrs. I think I will buy a new mobo and use the existing hardware I have to get it running. Also buying a new Graphics card. I will buy an Asus M5A97 R2 motherboard for $NZ170.00. I was going to build new computer and considering changing to Intel based hardware, either
ASUS H170M-PLUS INTEL H170, DDR4, MATX, LGA1151 $229 (6 Sata)
Asus Z170 Pro gaming INTEL Z170, DDR4, ATX, LGA1151 $350 (4 Sata)
Gigabyte GA-Z170XP-SLI INTEL Z170, LGA1151, DDR4, USB3.1, ATX, SLI/ $310 (6 Sata)
and getting either Intel Skylake CORE I5-6600 3.30GHZ, 6MB, LGA1151 PROCESSOR $NZ390
Intel Skylake CORE I5-6600K 3.50GHZ, 6MB, LGA1151, UNLOCKED PROCESSOR, NO FANS $NZ410
Graphics card: ASUS STRIX-GTX970-DC2OC-4GD5 ....$630
For now I will get the Asus Asus M5A97 R2

Thanks Driftwood. I honestly do think the mobo I have is failed in the Northbridge supply to PCIEx16. It will be ok for a internet browser medium game player but no use at all for digital media video/DVD work. Cheers
kioti (17360)
1409467 2015-10-05 21:08:00 1101, my sentiments entirely. I have had the board/rig I have for 6-7 years and it has served me well. Thanks kioti (17360)
1409468 2015-10-07 07:53:00 Have got replacement mobo. Good deal from TradeMe..Combo Motherboard Gigabyte GA78LMT-S2P socket AM3+ rev4, with AMD Athlon II X2 260 @ 3.2 Ghz,. Yes I know the equipment is old, the mobo is 2011 release. But ii is newer than one I have and was a cheap step forward to DDR3, 1333Mhz RAM. Cost was $NZ60 and $15 shipping. Cool. I could get an AMD FX 8350 to run in it but I won't. Will fit my AMD Athlonx4 630 to it and run the Athlon II x2 in the board I have. Chap I know does computer repairs/sales has DDR3 RAM he will give me, just have to take it to shop once I have it fitted out with hardware I have and he will do tests for compatibility as he said some of the RAM is from servers. I'm happy enough for now with what I am getting. Now, I have to try find a post here that I think waihuitech advised a person getting a new mobo and wanted to know if he can use existing HDD with OS etc on his new board without having to do a complete reinstal of everything. From memory, wainuitech explained that it can be done and how to achieve it.
Thanks to all who responded with advice/suggestions.
kioti (17360)
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