Gigabyte P35 motherboards and DPC

Re:Gigabyte P35 motherboards and DPC (Lanceindastudio)

Thu, 30 Dec 2010 18:43:44 GMT

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.

Re:Gigabyte P35 motherboards and DPC (Earthmusician)

Thu, 30 Dec 2010 15:45:44 GMT

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!

Re:Gigabyte P35 motherboards and DPC (geobrick)

Sat, 20 Feb 2010 04:48:04 GMT

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.

Re:Gigabyte P35 motherboards and DPC (frakevich)

Wed, 27 Jan 2010 15:19:55 GMT

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.

Re:Gigabyte P35 motherboards and DPC (ernboogie)

Thu, 21 Jan 2010 02:03:41 GMT

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

Re:Gigabyte P35 motherboards and DPC (Archimago)

Sat, 16 Jan 2010 18:55:46 GMT

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.

Re:Gigabyte P35 motherboards and DPC (rcklln)

Wed, 13 Jan 2010 23:37:56 GMT

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

Re: RE: Gigabyte P35 motherboards and DPC (My Favorites)

Sun, 06 Dec 2009 05:17:47 GMT

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

Re: RE: Gigabyte P35 motherboards and DPC (Lanceindastudio)

Sun, 06 Dec 2009 04:13:21 GMT

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...

Re: RE: Gigabyte P35 motherboards and DPC (My Favorites)

Sun, 06 Dec 2009 04:02:39 GMT

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

Re: RE: Gigabyte P35 motherboards and DPC (Lanceindastudio)

Sat, 05 Dec 2009 17:21:42 GMT

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

Re: RE: Gigabyte P35 motherboards and DPC (My Favorites)

Sat, 05 Dec 2009 03:57:26 GMT

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.

Re: RE: Gigabyte P35 motherboards and DPC (infinity2009)

Fri, 31 Jul 2009 16:15:48 GMT

haha, no probs, thanks for taking the time. i havent done the msconfig thing, trying it now, anything i should look out for?
cheers again

Re: RE: Gigabyte P35 motherboards and DPC (rstollen)

Fri, 31 Jul 2009 13:50:48 GMT

Well the last thing I can think of are applications that may be running. Maybe anti-virus, or drive indexing, etc. I'm assuming you've already used msconfig and disabled everything that's not absolutely necessary.

If that's not it, then I have no idea also.

Re: RE: Gigabyte P35 motherboards and DPC (infinity2009)

Fri, 31 Jul 2009 08:51:07 GMT

yes its texas intruments

Re: RE: Gigabyte P35 motherboards and DPC (rstollen)

Thu, 30 Jul 2009 23:57:25 GMT

Mike - I'm assuming you already checked which chipset your motherboard's firewire interface is using. Is it Texas Instruments (TI)?

Re: RE: Gigabyte P35 motherboards and DPC (infinity2009)

Thu, 30 Jul 2009 23:41:21 GMT

using motu asio drivers, yeah adjusted all latency buffers (on both sound cards)
same results when using mini mbox with digidesign asio drivers also

cheers

Re: RE: Gigabyte P35 motherboards and DPC (rstollen)

Thu, 30 Jul 2009 16:38:47 GMT

Mike - Are you using ASIO or WDM drivers? Assuming you are, did you already go though the routine of adjusting your latency buffers?

Re: RE: Gigabyte P35 motherboards and DPC (infinity2009)

Thu, 30 Jul 2009 12:42:24 GMT

Hi rstollen,
thanks for the quick reply and welcome :-)
Im running a pentium (R) D
2.81GHZ
3gig of ram
Windows xp sp 3
internal esata 500g Western Dig drive for audio
smaller ide drive for apps and os etc

Im using a firewire motu traveler but have also experienced the same problem when i use the computer with my mbox mini.
ive disabled and enabled numerous bits and pieces in the device manager over time, testing them out to see if anything affects anything (firewire,dvd,network adaptors, on board audio, usb hubs, internal modem, etc etc!) but again no dice.

Ive used the DPC latency checker and before having flashed the bios and disabled a few things i was getting red spikes quite often whereas now the max seems to be around 519 which is better than before aobviously but the audio latency is still absolutley unbearable on sessions with say 5 vst insts (nothing mega heavy) and a few instances of waves eq's and basic compressors etc.
i dont get it! :-)

hope that helps....
any advice would be fantastic, ive been banging my head against the wall for months now until i camre across other people having the same problem.

thanks!

Re: RE: Gigabyte P35 motherboards and DPC (rstollen)

Wed, 29 Jul 2009 20:03:05 GMT

infinity2009

Hi,
ive been reading here with a lot of interest as i have had pretty much the same problems with my GA-81945G Pro - awful latency issues. ive tried flashing the bios with various versions available through Gigabyte but no joy.
Is there a Beta Bios available or some advice someone can give me to sort this out on a GA-81945G Pro ? driving me mental.
many thanks in advance

mike

Welcome to the forum, Mike.

It would help if you told us more about your system, like which audio interface are you using. You're problems could turn out to not be your motherboard/BIOS at all. Also, if you're using the built-in sound chips instead of a real audio interface, you should expect latency problems.

Re: RE: Gigabyte P35 motherboards and DPC (infinity2009)

Wed, 29 Jul 2009 14:30:23 GMT

Hi,
ive been reading here with a lot of interest as i have had pretty much the same problems with my GA-81945G Pro - awful latency issues. ive tried flashing the bios with various versions available through Gigabyte but no joy.
Is there a Beta Bios available or some advice someone can give me to sort this out on a GA-81945G Pro ? driving me mental.
many thanks in advance

mike

RE: Gigabyte P35 motherboards and DPC (bin68)

Wed, 10 Sep 2008 08:10:56 GMT

New BIOS F6a for EP35-DS4 (rev. 2.1) is out. The website says it's a beta version.

It can be downloaded at http://www.gigabyte.com.tw/Support/Motherboard/BIOS_DownloadFile.aspx?FileType=BIOS&FileID=13926.

RE: Gigabyte P35 motherboards and DPC (Dan DAmico)

Mon, 28 Jul 2008 21:55:52 GMT

Thanks for the heads up on the F5 BIOS for the EP35-DS4. I installed it yesterday - no problems yet.

RE: Gigabyte P35 motherboards and DPC (bin68)

Sat, 26 Jul 2008 23:23:16 GMT

Installed the official BIOS F4 and then the latest F5. Everything seems to work fine with the DPC latency now staying at 5-10us most of the time (when there is no disk activity).

The latest F5 is available at http://www.gigabyte.com.tw/Support/Motherboard/BIOS_Model.aspx?ProductID=2744.

This was F2:

This is F5:

RE: Gigabyte P35 motherboards and DPC (Dan DAmico)

Wed, 23 Jul 2008 00:51:00 GMT

Hi Dewdman,

Maybe I spoke too soon. They released an official version for my motherboard, the GA-EP35-DS4, which I downloaded here

If they haven't released the new one for your board, they probably will very soon.

RE: Gigabyte P35 motherboards and DPC (dewdman42)

Wed, 23 Jul 2008 00:05:22 GMT

Thanks for letting us know Dan! can't wait to try it, but I can't seem to find it. Where did you find it?

RE: Gigabyte P35 motherboards and DPC (Dan DAmico)

Tue, 22 Jul 2008 09:13:42 GMT

It looks like Gigabyte has finally released official versions of the new BIOS. I've been testing it for the past two days and everything seems fine. It allows voltage to be changed, so overclocking works, and the DPC latency spikes are gone. Standby (S3) works, too.

Thanks to all that contacted Gigabyte requesting a fix to the problem. They listened and stood behind their product. That wins big points in my opinion.

RE: Gigabyte P35 motherboards and DPC (vojx)

Mon, 21 Jul 2008 05:14:52 GMT

Sorry if this is a repost, too busy using the DAW now that my DPC spiking is fixed.

Thanks to Janus, and the Tweaktown forum, the fix for the GA-P35C-DS3R was BIOS F11.

Everything i got from the GB website (F1, 2, 4, 6, 9, 11e) gave 500-800Âµs at idle with spikes to 1000-1200Âµs every 5 secs. Removing Easytune helped a bit, but the F11 BIOS got me down to an even 5-6Âµs at idle, 20-30Âµs with a project running in Sonar.

Hope it works for you too. If anyone needs the file, PM me.

Regards

RE: Gigabyte P35 motherboards and DPC (Dan DAmico)

Thu, 03 Jul 2008 08:34:08 GMT

Thanks for posting the 4H BIOS for the EP35-DS4. I hadn't been notified by Gigabyte.

I ran some quick tests, and it does indeed allow you to change the CPU voltage, and it will hold the settings. The max DPC latency was 15us, and most of the time it was between 4us and 6us. I'll post again after running it for a while to try to uncover any problems.

I'm glad to see Gigabyte is still working on this.

RE: Gigabyte P35 motherboards and DPC (fimpenb)

Thu, 03 Jul 2008 07:38:34 GMT

Beta BIOS v. F4h for GA-EP35-DS4 rev. 2.1: EP35DS4.F4H
Same results as F4b regarding the DPC latency. I don't really know what this version fixes. Maybe the problem of not being able to change CPU voltage, haven't checked.