Hi all. After reading more than half this thread for info on this board I feel like I should share my experiences whit this board as well.
My system consists off these parts:
Motherboard: Gigabyte GA-MA78GM-S2H rev 1.0
CPU: AMD Phenom X4 9750 2.4Ghz@1.125v (original 1.3v)
Memory: Corsair TWIN2X4096-6400C4DHX (2x2Gb ( 800Mhz@email@example.com))
Graphics normally: 780G/HD3200
Graphics temporary: ATI HIS X850XT Ice-Q ITurbo (120mm ghetto/orginal Ice-Q fan broke) (installed because I needed tv-out for tv)
Monitor normally: LG L245WP-BN 24" (off on repairs at moment)
Monitor temporary: IBM G72 16" crt(11+ years old? still going strong :P ) & Tandberg 21" TV (crt)
PSU: Corsair HX620Watt
Case: Lian-Li PC-A01B (first weeks I had the system in a Cooler Master Centurion 5 case)
CD/DVD-burner: Pioneer DVR-215BK SATA
HDD: 1x Maxtor 10 200Gb SATA, 2x Seagate Barracuda 7200.10 320Gb SATA2
Cooling: AMD stock cpu-cooler, 1x Nexus 80mm fan, 1x Cooler Master 80mm fan, 1x Cooler Master 120mm fan for X850XT.
Silencing: Be Quiet! PC Noise Absorber Kit (universal big tower kit)
Keyboard: Logitech Media Keyboard
Mouse: Logitech G5 Laser Mouse
Headphones: Plantronics Audio 370 Gaming Headset (these are GOD in comfort!)
Well where to start? Lets start at the beginning.
Bought this board whit a Phenom 9750 as soon as it was clear it was supported, had planned a 9850BE at first but as it was not officially supported I went for a 9750 instead(I think I got a OEM PIB 9750 whit 95W actually...). Took some Corsair 2x2gb CL4 memory and they have not given any problems yet.
I started the whole system off whit installing the memory in slot 0 and 2 for single channel configuration though I thought it would be dual-channel at first. The Motherboard Manual was "f%¤/(d" so I made a chance. Well booted first time system seems to start but all is black on my monitor and I wait and stuff seem to happen whit the comp but as I get nothing on my LG L245WP-BN I shut down. Made a quick check of the stuff and saw no problems so I start her up again and now I see stuff. I go into bios and check things and all seem ok. Go off to next install Windows XP pro Sp2 and that gives no problems at all(IDE mode). My Maxtor(system) was connected to sata0, whit Seagate's to sata1 & 2 whit burner on the top port sata4? Installed the cd-drivers. All work stable! I install various stuff and notice the single channel memory setup, cranking the case open and put them in memory banks 0 & 1. Comp starts up instantly after and I change memory timings to the 220.127.116.11 whit 2.1volts. Standard SPD timings for these memory is firstname.lastname@example.org so you have to set them manually to the correct tighter CL4@2.1v they are specified for. Seems stable and give no problems. I test some stress testing etc and notice those high temperatures on my cpu and the TMPIN3 when running OverDrive stability test. I also notice my cpu getting 1.4volts when at 100% load and 1.32volts in idle... So the motherboard overvolts quite alot... the 9750 is specified for 1.3volts. Whit bios F3 normal was reported as 1.25volts but as I got 1.32v in windows I figure that was incorrect but whit that overvolting under load I got some higher temps on cpu at reaching 60C. Then noticing I can't undervolt the cpu in bios... >_>; I notice I can do that atleast in AMD OverDrive. But that was left for later until I got my new Lian-Li PC-A01B case which run quite a bit hotter overall and really needed that undervolting to keep temps below 60C under 100% load.
I had problems whit the NIC on the motherboard. I would not get a proper working connection whit my router and internet so I did not get internet connection or it didn't work at all sometimes. had to disable the NIC and reactivate and reboots etc to get it working sometimes. It was a hell! Nothing worked until I removed my cheap tekComm 5port 10/100M Ethernet Mini Switch between the router and the computer... all problems vanished like they never existed in the first place... so I no longer use that switch, well at least not whit this comp connected to it. The switch worked perfectly whit my old computer and had no problems whit my laptop either so I have no idea what the problem is.
TMPIN3 can reach whole 127C whit my computer... but it gives no problems. idle lies currently at 87C. I have installed some gpu memory heatsinks on all the mosfett's on the motherboard, had to cut them to right sizes to fitt them at the various areas. Didn't notice a difference but those heatsinks around the cpu get burning hot whitin seconds of a cold computer booting up.
I have not tried to check if I had gotten HWAcc. to work whit video yet because my computer has chewed through every video I have thrown on it this far all smooth. That includes some 1080P MKV's. Just installed CCCP and using a newer MPC(the one in CCCP is old...) and I only updated the FDDShow video codec to latest whit multicore support as the one in CCCP was old and only used 1 core which wasn't enough for 1080P mkv but the newer FDDShow whit multicore support works all smooth.
Audio... well as I have no speakers but these headphones I haven't needed to do much... But I gotta note a small problem whit Audio. I get these half second lags or something time to time. A spot repeats like 3-5 times whitin a fraction of a second but you notice it and it irritates. Don't know where it comes from... Well I notice it the most when I'm typing or such. but just watching movies or listening to music doing nothing else I don't seem to notice such things. Anyone have a idea about that? I have the audio drivers from the CD installed so they aren't the latest. I have the newest on hdd just haven't bothered to update yet.
I have done stress testing now and then and stuff seems fairly stable this far. Haven't tested enough if the 1.125volts is enough for stability but there are quite a few hours there allready and it hasn't caused problems. I only sometimes get a freeze soon after I've started the comp up. but if it doesn't come whitin the first minutes all are stable for the rest off the day. The freeze comes whit the 1.3volts original aswell, so seems to relate to something else. Sometimes the graphics gets all distorted so I figure it may be the on-board graphics.
The temporary X850XT will be in use as long as my LG is in repairs and I need to use the 16" IBM screen and the tv in combo for video. As graphics goes I will buy a HD4850/70 later so I can play HD whit this comp later.
I love my new computer! It's a sneaky silent compact red-blue eyed fursting aluminium beast in heat wanting to kill something
I have XP SP3 now and F4 bios whit ATI 8.5 graphics drivers and latest motherboard drivers except the audio ones.
Well whatever reason or setup this motherboard is all ok for it's price. It's killer for the right circumstances actually! Could not have gotten a better motherboard for my current setup really either.
It's sad to read about whit the compatibility issues some people have whit their tv's but I hope that will be fixed soon.