Gigabyte P35 motherboards and DPC

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Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/08 12:32:14 (permalink)
Unfortunately, all the BIOS for my motherboard (GA-EP35-DS4) suffer from this problem.. I have an email into the Gigabyte tech support to see if I could use an early BIOS from a Ga-P35-DS4 rev 1, but so far haven't heard back. I'm not planning to switch to Vista anytime soon.
#31
F@KKER
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RE: Gigabyte P35 motherboards and DPC 2008/04/08 21:19:55 (permalink)
Just to update who ever may want to know, I reformatted my laptop, re-installed XP Home w/sp1 and DPClat shows the same latency spikes.

F@KKER

Someone said:
I've had more time to play with this, and am withdrawing the bug remarks.
This appears to work as designed and is actually a pretty cool feature.
#32
Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/08 22:30:27 (permalink)

ORIGINAL: F@KKER

Just to update who ever may want to know, I reformatted my laptop, re-installed XP Home w/sp1 and DPClat shows the same latency spikes.

F@KKER


Bummer. Sorry to hear that.
#33
timboe
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RE: Gigabyte P35 motherboards and DPC 2008/04/09 04:00:31 (permalink)
Hi Losguy

Yep, I tried disabling HPET before "downgrading" the BIOS

It does reduce spiking BUT it results in a much higher [although more steady] DPC reading.

From memory, with HPET disabled, I got a steady 35us <-> 40us reading [with a few peaks].

If you can roll back your BIOS, dont hesitate - I was running BIOS F10 on my rig and went back to F1 and F2 - both were just as good.

Apart from fixing my Vista DAW DPC issue, I noticed zero difference in my DAW performance from going from F10 to F1 or F2.

Hope this helps,
Timboe
#34
Featherlight
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RE: Gigabyte P35 motherboards and DPC 2008/04/09 05:24:36 (permalink)
timboe,

So, just to clarify, you went down to BIOS F1 or F2 and were able to reduce the spiking you were experiencing? And this was on Windows Vista only?

Curious to see if any XP ( SP2) users were able to reduce this problem by droping down to a lower BIOS.
We are using the P35-DS3R as well as Win XP Pro and experiencing the same spiking problem here as well. Currently using F9 BIOS.

Steve H.
post edited by Featherlight - 2008/04/09 05:47:06

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#35
Lanceindastudio
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RE: Gigabyte P35 motherboards and DPC 2008/04/09 05:38:04 (permalink)

ORIGINAL: Dan DAmico


ORIGINAL: Lanceindastudio

Im getting some spikes as well, biggest one just past 500.



Lance,

Could you send an email to Gigabyte tech support requesting that they address the problem? I'm hoping to get a few people besides me to contact them and get them to look for a fix.

I agree the performance is really good on these boards, but I believe it could be even better if they fix the problem.




Yes I will email gigabyte about this tomorrow as Im very tired! Thanx for all the efforts here.

My board runs amazing, but I would love to help those that may not have the same situation, and as well, maybe improve my system!

Cheers, Lance

Asus P8Z77-V LE PLUS Motherboard   
i7 3770k CPU
32 gigs RAM
Presonus AudioBox iTwo
Windows 10 64 bit, SONAR PLATINUM 64 bit
Lots of plugins and softsynths and one shot samples, loops
Gauge ECM-87, MCA SP-1, Alesis AM51
Presonus Eureka
Mackie HR824's and matching subwoofer
#36
timboe
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RE: Gigabyte P35 motherboards and DPC 2008/04/09 07:40:13 (permalink)
" ....... So, just to clarify, you went down to BIOS F1 or F2 and were able to reduce the spiking you were experiencing? And this was on Windows Vista only?...."

Yes - either F1 or F2 - both were identical in terms of elimination the DPC spikes - also, keep HPET "Enabled" in the BIOS

" ...... We are using the P35-DS3R as well as Win XP Pro and experiencing the same spiking problem here as well. Currently using F9 BIOS ..... "

My MB is a P35C-DS3R Revision 1.x.

My MB is identical to your non-C model, provided you MB is a Revision 1.0 or 2.0.

Go here for the Revision 1.0 for your MB and grab F2 [there is no F1]

http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2543

and go here for Revision 2.0 of your MB and grab F2 [there is no F1]

http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2626

If you have a Revsion 2.1 of your MB, you cannot flash back - either stick with XP X32 or find a Revsion 1.0 or 2.0 and swap them over.

Hope this helps,
Tim
PS: the Sticker on the side of the MB box will tell you which revision your MB is
post edited by timboe - 2008/04/09 08:01:03
#37
Featherlight
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RE: Gigabyte P35 motherboards and DPC 2008/04/10 00:56:04 (permalink)
timboe,

We have ver 2.1 and with XP 32, the spikes are peeking into the 700's.
Odd thing is...the board is a ver 2.1 ( indicated on the circuit board ) but the mobo shipped with BIOS f9. Updated to F11 with the same results. Dissapointing. Will send off and e-mail to Gigabyte in hopes of a resolution.

Steve H.

post edited by Featherlight - 2008/04/10 01:22:20

http://www.featherlightstudio.com/studio
 
Computer: Intel i7 Quad, Intel P7P55D mobo, 16gig Corsair, Nvidia 8600gs Fanless
OS: Windows 7 Professional 64 bit
-----------------------------------------------------
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#38
sessionthree
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RE: Gigabyte P35 motherboards and DPC 2008/04/10 01:02:02 (permalink)
Who cares? I get the same spikes on my gigabyte mobo and run at 2ms latency with no dropouts whatsoever.

#39
Featherlight
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RE: Gigabyte P35 motherboards and DPC 2008/04/10 01:23:21 (permalink)
sessionthree,

Thats great!
On some systems however, the more complicated the projects gets and the more crouded the data streams become, the over all throughput and efficiency of the motherboard becomes paramount. Several of our projects that have in excess of 20+ tracks recording simultaneously while streaming 100+ from disk with effects are showing signs of problems that the Asus boards did not have. Add to that ANY type of external sync ( ADAT, AES, SPDIF ) to the projects as well as hardcard DSP processors and things get bogged down fast. Low latency operation simply exposes the problem faster with the real problem being at the mix end of the project when everything in the system has to play nice with each other and hand back all those remote calls to the CPU in a timely fashion.

Steve H.

http://www.featherlightstudio.com/studio
 
Computer: Intel i7 Quad, Intel P7P55D mobo, 16gig Corsair, Nvidia 8600gs Fanless
OS: Windows 7 Professional 64 bit
-----------------------------------------------------
Computer: Mac Mini i7 Quad Core Server, Intel mobo, 16 gig DDR3, 2-USB3 Audio Drvs, Mavericks
-----------------------------------------------------
Audio Interface: Mackie 1640i Firewire Mixer on a 1394 400 TI Chip
Peripherals: 3 UAD-1 PCie, Ilok 2, MIDI'd Yamaha Motif xs,
#40
bofeni
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RE: Gigabyte P35 motherboards and DPC 2008/04/13 11:25:23 (permalink)
Hi All,

I'm in the same boat as Featherlight, recently had my dead ga-p35-ds3p replaced with a rev 2.1 ga-ep35-ds3p and now dpc latency shows near exactly the same screen shots as on the first page :(
I was wondering if it's at all possible to flash the bios with an early (F4 I think is the earliest) version of the ga-p35-ds3p rev 2.0 bios? Would that even work, and if I tried and it didn't would I end up with a dead m/b?

Thanks for your help!

Glenn
#41
KWILD
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 06:26:05 (permalink)
Any news from Gigabyte?Someone get replys?
#42
Roflcopter
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 07:36:06 (permalink)

ORIGINAL: Featherlight

sessionthree,

Thats great!
On some systems however, the more complicated the projects gets and the more crouded the data streams become, the over all throughput and efficiency of the motherboard becomes paramount. Several of our projects that have in excess of 20+ tracks recording simultaneously while streaming 100+ from disk with effects are showing signs of problems that the Asus boards did not have. Add to that ANY type of external sync ( ADAT, AES, SPDIF ) to the projects as well as hardcard DSP processors and things get bogged down fast. Low latency operation simply exposes the problem faster with the real problem being at the mix end of the project when everything in the system has to play nice with each other and hand back all those remote calls to the CPU in a timely fashion.

Steve H.


QFT. Excellent answer.

I'm a perfectionist, and perfect is a skinned knee.
#43
Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 08:42:56 (permalink)

ORIGINAL: KWILD

Any news from Gigabyte?Someone get replys?


It's been a week since I emailed Gigabyte, and still no reply. My tech support page says my emails are being processed.

I have run many tests and found some surprising results. I get much better performance with the WDM drivers in Sonar than the ASIO. I'm using a Delta 66 and a Delta 2496. I can go down to 64 samples in the Delta control panel with the WDM drivers, but only 128 samples with the ASIO drivers. I ran the Sonar benchmark test and wasn't able to run any multiband compressors at 64 samples with ASIO without pops and clicks, even though CPU usage was below 10%. But I was able to run 55 multiband compressors at 64 samples with WDM.
#44
bofeni
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 09:43:09 (permalink)

ORIGINAL: KWILD

Any news from Gigabyte?Someone get replys?


There's been a few new posts at http://www.tomshardware.com/forum/247210-30-audio-latency-problem-ds3r
If I understood correctly one of their users got a beta bios for a rev 2.1 ep35-dsr board which fixed the problem, things are looking promising!

Glenn
#45
Roflcopter
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 09:55:54 (permalink)
Interesting. One poster there reported that one fix he found suddenly introduced memory errors in *good* memory modules.

When he changed BIOS version the memory problems were solved, but his audio latency problem returned.

This would seem to indicate there is some BIOS problem with *another* latency factor, namely cas latency (CL 2 etc) in the memchips.

Apparently there's some internal timing conflict trying to satisfy both customers at the same time.

I'm a perfectionist, and perfect is a skinned knee.
#46
bapu
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 14:55:50 (permalink)
Dan,

Where exactly did you email Gigabyte support?

My P35-DS4 Rev 2.1 acts pretty much like yours (all bars ~20% higher).
#47
Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 15:12:40 (permalink)
Hi Ed,

I was wondering if you had the same issue with your board.

You can email them here: Gigabyte Tech Support
post edited by Dan DAmico - 2008/04/15 15:31:01
#48
dewdman42
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 15:17:26 (permalink)
This is somewhat disappointing thread to read since I just built a machine using the GA-P35-DS4(rev2.0). I don't have it setup for audio work yet, but when I do I will try a lot of tests with it and watch the DPC. I hope Gigabyte resolves it. the Main reason I selected this mobo is because its one of the few modern mobo's that still supports an LPT port, which I need for my trustee old school MOTU midi interface. Ironically, something tells me that very midi interface is going to make my DPC results even worse. ha ha.. Yikes.
#49
Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 15:27:28 (permalink)
Hey Dewdman,

If you are so inclined, I think it might help goose Gigabyte a little if they got a few emails asking them to fix it. I posted a link to tech support a few entries up.

Dan

#50
bapu
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 15:39:00 (permalink)
Just sent an email to them.

I might just do it every week.

BTW, this has not affected my performance yet. FWIW, I hav not pushed this machine either.
#51
bapu
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 15:42:12 (permalink)
I was wondering if you had the same issue with your board.


I'll post a sceenshot of my DPC Latency Checker tonight.
#52
HighestOlive
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 20:00:32 (permalink)
When I perform this test my read out it almost exactly the same as this one. I have a GIGABYTE GA-P35-DS3L.

Just a note for all of you the software that came with the motherboar EasyTuner5, if you have the running my Latency was solid over 500us. When I close that program back to what you see below.

The cd that came with my board says version 1.05 how do I know what F# I have to change to an earlier version to fix this problem.

I must say though that when i turned off the EasyTuner I was able to drop all my latencies to achieve below 4.4 ms and a 60 track audio song.
Much much better than I could do before.


ORIGINAL: Dan DAmico

Has anyone else using a Gigabyte P35 motherboard experienced spikes in DPC Latency Checker? A web search has shown that this seems to be a widespread problem, and Gigabyte doesn't seem to want to address it. It doesn't affect Asus P35 boards, so it must not be a problem with the chipset. Here is what I'm referring to:



#53
John
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 20:09:57 (permalink)
The cd that came with my board says version 1.05 how do I know what F# I have to change to an earlier version to fix this problem.

F# is a BIOS version number.

Best
John
#54
bapu
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 20:17:10 (permalink)
How do I get an image directly into a reply?
#55
Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 20:47:05 (permalink)
You have to upload it to a website or file server and link to it via the image button.
#56
mr. moon
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 21:43:13 (permalink)

ORIGINAL: Dan DAmico

Has anyone else using a Gigabyte P35 motherboard experienced spikes in DPC Latency Checker? A web search has shown that this seems to be a widespread problem, and Gigabyte doesn't seem to want to address it. It doesn't affect Asus P35 boards, so it must not be a problem with the chipset. Here is what I'm referring to:




I'm seeing the same exact thing, same pattern and everything! (see my sig below for system specs).

However, this doesn't seem to impact my performance at all. Maybe the DPC latency checker is not accurate on this config?

-mr moon


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"...Think outside the box as you mix within!" -mrmoon

#57
Lanceindastudio
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 21:47:05 (permalink)
I emailed them about it, but for me as well no apparent performance hit

Asus P8Z77-V LE PLUS Motherboard   
i7 3770k CPU
32 gigs RAM
Presonus AudioBox iTwo
Windows 10 64 bit, SONAR PLATINUM 64 bit
Lots of plugins and softsynths and one shot samples, loops
Gauge ECM-87, MCA SP-1, Alesis AM51
Presonus Eureka
Mackie HR824's and matching subwoofer
#58
Dan DAmico
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 21:49:56 (permalink)
That thought has crossed my mind, too. But I don't really know if it's impacting the performance. I mean, I get good performance and low latency, but it seems that maybe even better performance can be achieved if the spikes didn't occur.
#59
mr. moon
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RE: Gigabyte P35 motherboards and DPC 2008/04/15 21:53:09 (permalink)

ORIGINAL: Dan DAmico

That thought has crossed my mind, too. But I don't really know if it's impacting the performance. I mean, I get good performance and low latency, but it seems that maybe even better performance can be achieved if the spikes didn't occur.


My system is overclocked; is everyone else's as well?

...Probably not.

Anything else common? I'm using F2 BIOS. All SATA II drives, Nvidia-based video.

Any other ideas?

-mr moon

Intel Core 2 QUAD Q6600
4 GB 800MHz DDR2
RME FireFace 800
Windows 64 Pro

"...Think outside the box as you mix within!" -mrmoon

#60
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