Gigabyte GA-X58A-UD7 Excessive DPC Latency

[Dark Mantis]

what do you mean by pb exactly?

[plop28]

sorry im french pb means problem (the sound crackling and a huge DPC latency)

[Dark Mantis]

Thanks for clarifying that. Normally the problems occur when either the northbridge is too hot or there is some other program in the background that is conflicting. As an example I downloaded CloudOC and ran that, now I never have any problems with latency at all, but suddenly my readings hit the roof. As soon as I killed the progream they returned to normal. It was set to load at startup and it wasn't untill I went through what was running in Task Manager that I found it. I would suggest looking to see if you can find anything.

[plop28]

yes, i try to install DES ET6, it appear some DPC latency when i use it but return to normal when i close it.

it's really the same graph as eastley, a huge dpc latency sometimes and return to normal.

i will try this evening to arrange my sata/power cable in the case, and put an additionnal fan on my graphic card which cooling the NB

in any case, thank you for your help

Is eastley found a solution for that ?

[Dark Mantis]

I haven't any more information than what has been posted in this thread. Anyway let us know how you get on.

[plop28]

ok thanks, ill be back for the great news (hoping)

[plop28]

Hi,

I think i found it.. It seems to be the NB and  ICH10 chip wich are too hot.

[Dark Mantis]

Good, well not good but at least you have an answer to your problem. Now it is just a case of finding the best fix for it.

[plop28]

for low cost -> replace the intel stock fan

[Dark Mantis]

for low cost -> replace the intel stock fan

Ok so far as it goes but it isn't going to impact the temperatures on the North and South bridges a great deal.

[plop28]

the intel stock fan is apparently able to ventilate de NB. On another post, a guy have the intel fan, and he have 48°C on the NB against 75°C for me.

the ICH Chip is just connected by a caleoduc. If the NB is not ventilate, the ICH Chip is very hot (add 10°C) so 85°C for me.

[Dark Mantis]

Whilst I would agree that the choice of fan  has a bearing on the Northbridge temperature(Some fan/heatsink assemblies being higher than others) I wouldn't have expected such a difference in temperature. As far as the ICH10 chip goes thta is too far away form the processor to be affected by nay CPU cooler. In fairness the Southbridge is not usually subject to so much heat anyway. It is easy enough to make up a bracket to hold a small dedicated fan over the Northbridge anyway.

[plop28]

According to this guy, i put a temp probe near the NB and near the ICH Chip. Temp measured are around 5°C lower than HWMonitor show up.
And the ICH is warmer than the NB.


In addition, ICH Chip is just below my 5970 that is very hot (85-95°C)


Orignal Post (In french of course :

""
*

a l'instant je viens de poser une sonde thermique sur le X58 entre les ailettes

j'ai environ 5 degrés de moins que ce que me donne Everest ce qui me semble nomal car la sonde est juste coincée pour qu'elle tienne toute seule

*

je refais la meme chose mais la sonde sous le radiateur de l ICH10 et j'ai pratiquement 10 degrés de plus que précédemment , ce qui voudrait bien dire que l ICH est bien a une température plus élevée que le X58

*

Pierre

""

[Dark Mantis]

Thanks for the translation(you know how crap we Brits are at other languages ). I can't say I am surprised at your findings, the software temperature readings are often unreliable so a difference of 5 degrees is not unusual. As you said your southbridge chip is probably warmer because of its proximity to your hot graphics card. A lot will depend on the amount and type of use it is getting at the time.

[pnode]

Hey guys,

I've been fiddling with this one all night, but have finally figured out a temporary fix:

Here are my specs:

Win7 x64
Intel i7 930 processor
Gigabyte X58A-UD7 motherboard
EVGA GeForce 460GTX video

I found that the combination of disabling the CPU Enhanced Halt (C1E)  and Adjusting my power plan (within power options) in Windows 7 to "High Performance" solved the problem on my end. Before this, i was experiencing (almost steady) DPC latency's that were > 16000us when playing audio from my computer (resulting in a static/crackle noise). After the above changes I'm averaging around ~120us with no audio crackling or side effects.

Finding the C1E setting may be tricky in the bios:

M.I.T Intelligent Tweaker -> Advanced Frequency Settings -> Advanced CPU Core Settings -> CPU Enhanced Halt (C1E)  [Disabled]


I hope this works on your end as well!