Gigabyte P35 motherboards and DPC

For the GA-P35-DS4 rev2.0 is nothing change. I guess lucky people is "rev 2.1" and DS3 users.

In windows 7 X64, i can't play simple MP3 for God Sake. Before and after driver installation, naked windows.

By brother has 2 children, his old Asus computer runs windows XP. Interesting part is he has viruses and they avare. Everytime turn on the computer winlogon.exe (or similar) will warn and will restart if you click "OK"... So that message must stay with you. Children at least 30 stupid games installed. Here is his DPC check with sick virus computer




And my Gigabyte GA-P35-DS4 Rev 2.0... I have tried all versions. 3 different display card ati one of them.

You have tried all bios versions? If you have the right bios, it should fix the problem.

Bios versions until F8 to F14. I have tried F8, 10, 11,12,13,14

I am told F14 should fix the problem. Also from this topic someone mention bios9 had a bug for my rev and model number

if there is earlier bios's still available, it is worth a try. I know on my gigabyte board, I had to use version F5 and all was well. At this point though I have a different board and Im not sure if the latest bios on my board is also good or not.

Again, I can only think maybe you should try even earlier bios.

Also, maybe, just to see, try resinstalling the latest drivers for the motherboard, video card you have, and anything else that might cause a problem... maybe event he audio iinterface drivers.

Thats what I would probably do...

I do these with naked windows (nothing installed, no pci card, no usb, nothing) and after drivers etc installed :) And every other install i go and check DPC checker. Disabled everything including mouse i am holding.

Regarding your F5 suggestion i am not very sure if there is any for my revision (2.0) The site shows F8 to F14 and support tech would ask me to try or send me one. They told me F14 would fix, and disable something on the bios setting, i forgat right now but i did. Its peaks to 4000 right now.


I won't buy Gigabyte for sure. But i heard Gigabyte bought 51% of Asus :) What else i can buy now? Abit? MSI?

I would like to see picture of other boards DPC checks. I can't find any

Updating my BIOS from F12 to F14 eliminated the latency I observed using DPC Latency Checker. At F12 I had regular spikes at about 750 when idle, now on average it stays below 10 with max in the low 20's - basically a straight line at the bottom of the graph :)
 
Thanks to all that contributed to this thread.
 
Gigabyte GA-P35-DS4 rev2.0 F14
XP Pro 32 bit SP3
Sonar Producer 8.5.2

Just found you guys here after getting the E-Mu 0404 USB for DAW work this week and noticing 'snap-crackle-pop'.  Getting DPC spikes up to 4000us correlated with sound degradation.  May try downgrading BIOS if no other solution :-(.

Has anyone with the P35-DS3L ever get a beta BIOS to try from Gigabyte?  I just sent them a request 10 minutes ago.

It's no big deal, at least I don't think it is.  I'm still able to go into Hyper-Production.   www.sellmorebeats.com  
 

I was having similar DPC issues.  I have tried with and without overclocking, no help.  Upgraded to F14 bios, some improvement, but not great, any mouse activity triggered DPC spikes. Then a support person at m-audio suggested to disable the CPU Enhanced Halt (C1E) and CPU EIST. And boom - DPC is very stable.  Once in a while when opening an application it spikes all the way to 16ms (prior to disabling the switches it did not go up that far), but at least it only spikes once and then stays low all other time.  So to summarize, my setup GA-p35-DS4, intel 6600 overclocked to 3gz (just set the multiplier to 333), F14 bios and with the CPU Enhanced Halt (C1E) and CPU EIST switches disabled, windows 7 64bit. 
Hope this helps.

frakevich


I was having similar DPC issues.  I have tried with and without overclocking, no help.  Upgraded to F14 bios, some improvement, but not great, any mouse activity triggered DPC spikes. Then a support person at m-audio suggested to disable the CPU Enhanced Halt (C1E) and CPU EIST. And boom - DPC is very stable.  Once in a while when opening an application it spikes all the way to 16ms (prior to disabling the switches it did not go up that far), but at least it only spikes once and then stays low all other time.  So to summarize, my setup GA-p35-DS4, intel 6600 overclocked to 3gz (just set the multiplier to 333), F14 bios and with the CPU Enhanced Halt (C1E) and CPU EIST switches disabled, windows 7 64bit. 
Hope this helps.

Yes! This was a big help (along with a similar post by "PeteG@Scan" on the Hexus website.)
 
I was reading through the 100s of posts here and on Tweaktown and your solution works.
 
I have a Gigabyte P35-DS4 ver 2.0 with a Q6600 processor running at normal speed. The bios version has been F14 for a few months now. I'd never noticed a problem or checked DPC latency until I recently tried using a TC Electronics Studio Konnekt 48 with Windows 7 x64 (installed as a test). The SK48 seemed to work ok with the first win7 x64 public beta driver but the newer public beta would barely run. I thought the driver was problem but when I checked the DPC Latency and I saw lots of yellow and red spikes, I thought I'd try to resolve that before I blame the beta drivers.
 
PeteG@scan's post on the hexus forum said 
*****************************************************************************************
 "Just a couple of pointers on the Gigabyte boards because honestly a lot of them can be awkward to configure for DPC issues.
  First of all disable all power saving features in the bios.
  EIST
  C1E
  C3/C6/C7
  Speedstep
  all need to be turned off.
  Virtualization if you’re not using it in win7 needs to be turned off.
  Turboboost on i7's/i5's also need turning off."
******************************************************************************
 
First I disabled EIST and C1E in the bios and it worked great. It brought everything into the green. It averaged in the 150s and peaked at about 200.  Audio playback worked fine.
 
I decided to tweak some more:
I couldn't find a Speedstep or C3/C6/C7 setting.
Disabling virtualization and setting Turbo mode to standard had no noticeable effect.
But Disabling HPET cut the latency in half. Now it was averaging in the 50s and peaked at 86.
I'll have to look up what HPET does in case it's important.

I got a new processor and used EasyTune6 to sort out some teething troubles. After this my soundcard started popping and dropping out like crazy. I thought the soundcard was dead but used the DPC checker and found a horrible latency problem with my Gigabyte motherboard, in the form of very regular spikes every 3 seconds, of about 13000 microseconds! While I was convinced for a day that it was a hardware problem, it was solved when I turned off Gigabyte's own EasyTune 6 program, which had installed itself to run in the background and sample all sorts of info about the hardware on a regular basis. THe program is great for checking CPU temps and overclocking etc, but it is also evil... Uninstall it after use!

good job ;)

I suggest:
http://www.cpuid.com/softwares/hwmonitor.html
http://www.cpuid.com/softwares/cpu-z.html
when you want to check things-

Usually extra software besides drivers that comes with a motherboard aren't necessary and can be a pain.