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[Official] Gigabyte GA-990XA/970A-Series Owners' Club & Help Thread - FX-8350 support added - Page 66

post #651 of 3278
Has anyone ran SLI on this board yet?

I just ordered my second MSI GTX 560 ti Hawk to run in SLI.

Wondering if any of you guys are running sli and how does it perform.
post #652 of 3278
Quote:
Originally Posted by theonejrs View Post
Nephrahim,

This seems to be the popular consensus.

SYS = TMPIN0 = Motherboard = 32C
CPU = TMPIN1 = CPU = 33C
MCH = TMPIN2 = VRM = 39C
Corrected . I just got my temperature probe up and working... yet its so frigging cold in my room, that I cant get any difference in temps between VRM/northbridge/CPU. Northbridge is not hot though on the finger test. VRM is much hotter. Will let you know concrete numbers once I can load the system with moar voltage / Gaming / OCin.

kevinf,

My apologies, but I have to correct it from VRM back to Northbridge. MCH is an Intel term. It stands for Memory Controller Hub, which is what Intel used to call the NorthBridge. Read here:

http://www.techterms.com/definition/northbridge

Additionally, I spoke to GigaByte earlier today and there is no temperature sensor for the VRMs, so I'm now 100% certain that the TMPIN2 is the NorthBridge. MCH = TMPIN2 = NorthBridge = 39C

Respectfully,
Russ
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post #653 of 3278
If TMPIN2 is NB, how to explain that it drastically rises with overcloking as NB only controls PCI-e links, nothing more?
I also tried to change that thermal paste on NB with Noctua NT-H1. That stock TIM is like ******* chewing gum, it demands much efforts to remove it. Sadly, under overclock, my NB with NT-H1 is as hot as with stock thermal paste (touching with fingers).
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post #654 of 3278
Quote:
Originally Posted by Matas View Post
If TMPIN2 is NB, how to explain that it drastically rises with overcloking as NB only controls PCI-e links, nothing more?
I also tried to change that thermal paste on NB with Noctua NT-H1. That stock TIM is like ******* chewing gum, it demands much efforts to remove it. Sadly, under overclock, my NB with NT-H1 is as hot as with stock thermal paste (touching with fingers).
Better thermal paste won't make the heatsink any cooler. Good thermal paste means it has a better thermal connection to the heatsink , so gets transfered faster, so if anything if it's getting hotter that's a good thing.

That said, if you want to make it cooler, I guess you'll need a dedicated fan or something.

Oh, and rep for answering our age old question.
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post #655 of 3278
Quote:
Originally Posted by Matas View Post
If TMPIN2 is NB, how to explain that it drastically rises with overcloking as NB only controls PCI-e links, nothing more?
I also tried to change that thermal paste on NB with Noctua NT-H1. That stock TIM is like ******* chewing gum, it demands much efforts to remove it. Sadly, under overclock, my NB with NT-H1 is as hot as with stock thermal paste (touching with fingers).
Matas,

Generally that is caused by the close proximity to the CPU and the short direct connections to it. Some P35 chipsets had problems caused by that. It also does a great deal more than control PCIe links, as it is also the link between the memory controller in the CPU and the memory. USB3 and Sata 6.0 are also run through as many as 6 of the PCIe lanes, 4 for the Sata 6.0 and 2 dedicated to USB3. The NorthBridge is the workhorse of both the 800 and 900 series motherboards. The 900 series has the upper hand over the 800 series because it has 42 Gen 2 PCIe lanes, while the 800 series is limited to 36.

Best Regards,
Russ
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post #656 of 3278
Nephrahim,
you are absolutely right about heatsink, but even TMPIN2 is NB, I don't get lower temps with NT-H1. Try to OC your 1090T (@4GHz, 1,45v) and post some TMPIN2 results under Prime95, please.
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post #657 of 3278
running 100% cpu usage prime95.
temps reported by OCCT
TMP0: 35 (motherboard)
TMP1: 43 (cpu socket)
TMP2: 59 (VRM or northbridge?)

Using temperature probe:
VRMs near the mobo, touching the chokes, 57C.
NB, between the fins, touching heatsink 44C.
RAM, touching the heatspreaders, 40C.
I also tried measuring the CPU, but the airflow, even with fans on low, would only get 35C at the bottom, between the heatpipes... I bet I could run my computer without a fan on my heatsink...

VRM (touched) felt hotter then NB, which felt hotter then RAM, which felt hotter then CPU heatsink near base.

Tmp2 always scales with cpu usage and overclocking, because it is directly connected to the current used by CPU.... NB usage would not increase when you turn on prime95 with small FFT....

@theonejrs
Im pretty sure that the CPU is directly connected to RAM via IMC. Not CPU>NB[chip]>RAM
Edited by kevinf - 10/27/11 at 7:58am
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Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
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post #658 of 3278
kevinf,
I think the same as you about NB and CPU usage. What is your CPU voltage?
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Corsair Force F60 + WD 1TB RE3 Optiarc AD-7263S Thermalright Silver Arrow (2x Xigmatek XAF-F1454) Windows 7 x64 
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My System
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CPUMotherboardGraphicsRAM
Ph II X4 955BE @4.263GHz 1.504v/ CPU NB 2.842GH... GigaByte GA-990XA-UD3 (F10f) Club3D HD6950 2GB @ 990/6300 Kingston HyperX Blue 2x2GB @ 1624 7-9-7-20 1.65v 
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Corsair Force F60 + WD 1TB RE3 Optiarc AD-7263S Thermalright Silver Arrow (2x Xigmatek XAF-F1454) Windows 7 x64 
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Dell U2311H Microsoft Reclusa Enermax Revo85+ 850W Bitfenix Colossus Window 
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post #659 of 3278
i have a problem? i have a motherboard 990XA-UD3 with a FX-4100 cpu and 2x2 GB DDR3 1866mhz Kingstone Hyper X memory, and in the bios the memory speed, when i start the computer show just 1600mhz, i try to put manual to 1866 and save but after the restart, on bios the same thing - 1600mhz, what is the problem? i know this motherboard suport native 1866mhz with a fx cpu.
post #660 of 3278
Thread Starter 
^ Try updating the BIOS. If you have to, initiate a small bus clock overclock to 233MHz.
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