OS not detecting temperatures properly on 1055T + 790XT-UD4P

[xd_1771]

My temperatures as detected by CoreTemp and EVEREST show my processor to idle at 20 degrees and load at around 30; the BIOS CPU temp shows idle temp of 32 which would appear much more accurate especially compared to idle and load temps of my previous x4 965.  I'm worried that this temperature error may cause my CPU's fan speed to not raise high enough and cause my processor to overheat (my CPU fan only run at 1015RPM when running a Sony Vegas render; with my 965 it ran at around 1800RPM load and can run up to 2200RPM [it's the 120mm Xigmatek fan included with the Dark Knight]).

Also, enabling AMD TurboCore causes voltage to show incorrectly at 1.472v on the BIOS page and from the OS.  Is it like this on purpose due to the nature of TurboCore or is that an error?

 I'm using the F8D BIOS on the 790XT-UD4P.  Also, my OS is Windows 7 Ultimate x64.
Is there a newer BIOS with better support?  Other people I know on overclock.net have seen problems such as voltage spikes and hissing when overclocked to 4GHz running that latest F8D BIOS on the same board I use.

-xd_1771

[ranger1]

U R not alone! BIOS problems all over the place.

If I don't get an update to the 790fxta-UD5 f3f bios soon I am going to have to swap it out. I have temp problems, USB problems and Fluctuating vcore even after turning everything off.

lets see what happens.

[xd_1771]

U R not alone! BIOS problems all over the place.

If I don't get an update to the 790fxta-UD5 f3f bios soon I am going to have to swap it out. I have temp problems, USB problems and Fluctuating vcore even after turning everything off.

lets see what happens.

Ouch.  I appear to be getting temp problems only; in fact I believe there are a few users alongside me who have gotten 1055T working in a 790XT-UD4P without any huge problems at all.
Does enabling "AMD C1E support" in the BIOS do anything for this board and CPU by the way?  Maybe that's somehow causing the problem...

[nangu]

Well, I'm having weird readings from Temps and fan RPM on a MA-790XTA Bios F2 and AMD Phenom II X4 945 C2 stepping 95 Watts CPU

This same processor on an Asus motherboard at the same VID shows temps idle-load at 34°C/50°C and stock heatsink and fan at 3000/4500RPM

On my brand new MA790XTA board, temps are 40°C/65°C and the same stock heatsink/fan at 1800/3000RPM. No matter what I can do about enabling/disabling Smart Fan on BIOS, the fan topes at 3000RPM (I know i'ts a 5000+ RPM fan, but for some weird reason the Gigabyte max out at 3000 RPM). On both boards I'm testing at 1.225 Vcore, because the default 1.325 runs very hot (70+ °C load)

By the way, on both motherboards CoreTemp reads 34/50 (idle/load), so which reading I need to trust in order to not overheat the processor?

[xd_1771]

Well, I'm having weird readings from Temps and fan RPM on a MA-790XTA Bios F2 and AMD Phenom II X4 945 C2 stepping 95 Watts CPU

This same processor on an Asus motherboard at the same VID shows temps idle-load at 34°C/50°C and stock heatsink and fan at 3000/4500RPM

On my brand new MA790XTA board, temps are 40°C/65°C and the same stock heatsink/fan at 1800/3000RPM. No matter what I can do about enabling/disabling Smart Fan on BIOS, the fan topes at 3000RPM (I know i'ts a 5000+ RPM fan, but for some weird reason the Gigabyte max out at 3000 RPM). On both boards I'm testing at 1.225 Vcore, because the default 1.325 runs very hot (70+ °C load)

By the way, on both motherboards CoreTemp reads 34/50 (idle/load), so which reading I need to trust in order to not overheat the processor?

Indeed my fans don't top full speed, my Dark Knight fan can top 2200RPM but the motherboard only allows around 1800RPM if set to PWM control; if set to Auto or Voltage, the RPM only goes up to around 1000 which is unacceptable and makes the CPU run too hot.  It's been like this both before and after I got my 1055T.  Not a big problem I guess since at 1800RPM my fan can keep up with CPU temperatures at just over 4Ghz right now (max temp is 55 degrees), assuming the OS detects temperatures 10 degrees lower than BIOS which should be around correct.

Also, if I try to bring the northbridge anywhere above 1800mhz (yes, with voltage boosts), I get a continuous string of restarts after exiting the BIOS that stop after I turn the system off and cold boot.  It's the same thing restarting from the OS.  This doesn't happen on cold boots.  Someone I asked on Overclock.net said that this is likely to be a faulty BIOS problem.  With my old 965 I could overclock my NB just fine.

[nangu]

I also think it's a bios problem. I checked at several forums and this borads seems to have problems with fan control. Some people complain about the fans always performs at full speed (the other way than mine).

I asked Gigabyte support, and their response was not satisfactory and contradictory.

This is my first Gigabyte motherboard (come from Asus) and I'm a little dissapointed whit it because this BIOS weird problems. After that, the board is working as expected, but I don't want to overclock yet while this problems persists.

[Ghosty]

I know this is an old topic and sorry for digging it up but i thought you guy/gals  (not sure on either) could use some closure on this.

I've found that having a 790XT-UD4P is really good they can overclock really well apart from when it comes to the new X6 chips with system lock ups etc; but im thinking its not so much to do with the BIOS, but to do with the chipset well NB and as for fan speed read outs most fans now days are automatically controlled not only by the mainboard but they also have there own in built fan controller, the fan maybe rated at a certain speed but is limited to help prevent noise.

I myself have a 1090T X6, cooled by a Corsair H50, I have had the CPU upto 4.2 GHz, but ive found that the RAM i have is 1.8v and this mainboard recommends 1.65v (which kinda sucks, didn't realise at the time of purchase of the RAM), and having 8 Gb DDR3 RAM 1333 MHz was downclocked to 1066 MHz so it didn't cause any issues, but when i overclocked the FSB to 246 MHz it bridged the gap to 1332 and put the voltage upto 1.8v this worked for sometime, never bothere over volting the NB seeing as i was already high on voltage in RAM which could have caused further issues, and my temps were;
Core temp: 18C/32C (IDLE/MAX LOAD)
CPU  temp: 30c/50c
NB temp: 33c/41c
But after a few months this started to cause errors BSOD  and even trouble with the USB not 100% if linked but now ive stuck everything on to stock settings FSB 200, ram voltage down to 1.65 and clocked in at 1066MHz but the only thing i have changed is the cpu multiplier to 17.5 to make a half decent overclock to 3.5GHz and works flawlessly so lets not forget people overclocking is a bonus not a given right.
If im wrong please feel free to shout back but im just saying that you maybe expecting too much from this Chipset, and as for the X4 chips i think even with 965 the top end you could expect is about 4 GHz maybe just slightly over and the person with a 945 what speed is it clocked in at if thats stock speed you may need to clean the bottom of your cooler and and reapply  thermal compund/paste to your cooler and if its overclocked i suggest you downclck it its an engergy effcient chip of 95 Watts unless you got one of the first one which were 125 Watts but if my memory serves me correctly these are not the best overclockable CPUs right im gunna shut up now peace out

[Dark Mantis]

the only thing i have changed is the cpu multiplier to 17.5 to make a half decent overclock to 3.5GHz and works flawlessly so lets not forget people overclocking is a bonus not a given right.

Absolutely right. I often think that people feel that they have to overclock even if they don't need to especially at the moment when the hardware is driving the software as far as speed goes. Most standard systems are quite powerful enough without any overclock and they have less heat problems to go along with it.

[absic]

Hi and thanks for your post. It is always interesting to see what others are able to do.

I was interested to note that you were able to obtain a good O/C for a while but then started having BSOD's. This could tie in with the information that I got from AMD Technical Support regarding the Memory Controllers on the AM3 CPU's not being that happy if things are pushed to far. In fact the guy at AMD told me one of their own technicians had a couple of CPU's fall over when he was doing some intensive numbering crunching that pushed the CPU too far with 1600 Mhz RAM.

I have the 1090T on a GA-790XTA-UD4 and have been able to get it stable at 4.2Ghz although I now run it only at stock speeds. It just goes to show that some of the CPU's are better at O/C'ing than others in the same range. This was also proved in the recent Overclocking Championships Euro Finals run by Gigabyte using Intel Chips. If you wern't aware of this competition check here: http://forum.giga-byte.co.uk/index.php/topic,2294.0.html