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Thread: P35 Motherboards and DPC Latency Spiking




  1. #161
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    Default Re: P35 Motherboards and DPC Latency Spiking

    I installed the Nvidia 175.19 drivers too but no improvement. I managed to locate the spikes though. When I open e.g Outlook 2007 I get a huge spike (around 2000 us). Someone got any idea what that's about? Suppose it got something to do with the graphics... Huge difference though with the new BIOS but not perfect...
    Last edited by fimpen_b; 06-30-2008 at 10:32 PM.
    EP35-DS4 rev. 2.1
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  2. #162
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Quote Originally Posted by Moba View Post
    Edit: Nevermind, the spikes are back on my system...no idea why - sigh :(

  3. #163
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Quote Originally Posted by Lsdmeasap View Post
    Hey, reading all of your posts I see you have EP35-DS4. Correct?

    If so I do not know where you see a rev 1 BIOS at, as there is NO rev 1 EP35-DS4, ONLY Rev. 2.1.


    *EDIT*
    I see now, That post by Mumid MUST be for a Rev. 1 P35-DS4

    I will open it up and see what I can find inside to be sure

    But yeah, that for sure would not work for you being that is a Rev 1 BIOS. Now a P35-DS4 Rev 1 might, it would be risky but it might. A Rev 1 for sure would not.

    That is why EP35-DS4 is the same rev as the last P35-DS4, as I said in that one post above same board. But still not sure you should even flash with a P35-DS4 rev 2.1 BIOS. But for sure you cannot use what Mumid posted as I think it is P35 Rev 1
    It is for a rev2.0 board mate. I have upgraded to an Asus P5Q Deluxe P45 board now anyway and that has no DPC issues but as I say that bios did completely fix my DPC latency issues on the Gigabyte. All I can say is there are other things that can cause latency issues and but I think Gigabyte are working hard on the bios problem anyway. There were also other fixes in that bios e.g. i could now select 'Extreme' memory performance enhancement. That F13e beta bios was the best bios I used for P35-DS4 and like i say it totally fixed the latency issue.

  4. #164
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Thanks kpo....I found those threads (inc the cakewalk one) through this thread (you may have posted those too so thanks again).

    I have decided to let my wallet do my talking for now on (ie, I won't touch a Creative Labs product anymore for me or systems I build for others) but I am at a loss as what I should do here in this case; wait for the P45 boards to mature a bit and give Gigabyte another chance (I like their DQ6 boards) or get an Asus board (my last two from them were problematic which was a reason I tried Gigabyte this time).

    Seems that Gigabyte tends to EOL their boards fairly quickly but I cannot back that up(edit: the 680i Asus board has gotten an update for support new cpus May 08, while the last update from Gigabyte for that board was last December 07 End edit)...anybody else notice this or should I be corrected?
    Last edited by chriskwarren; 07-01-2008 at 01:29 AM. Reason: Found some new info
    EP35 DS3P (F4 bios), Q6600 @3.0GHZ, Zalman 9700, 4GB Mushkin 6400 EP, Corsair 620HX, Antec Nine Hundred (2 intake front, rear and top exhaust), Sapphire HD4870 512MB, 2X Raptor 150GB RAID 0, Xonar DX, 2X DVD Drives, Dual Boot XP Home and Vista Ultimate 64-bit

  5. #165
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Quote Originally Posted by chriskwarren View Post
    Thanks kpo....I found those threads (inc the cakewalk one) through this thread (you may have posted those too so thanks again).

    I have decided to let my wallet do my talking for now on (ie, I won't touch a Creative Labs product anymore for me or systems I build for others) but I am at a loss as what I should do here in this case; wait for the P45 boards to mature a bit and give Gigabyte another chance (I like their DQ6 boards) or get an Asus board (my last two from them were problematic which was a reason I tried Gigabyte this time).

    Seems that Gigabyte tends to EOL their boards fairly quickly but I cannot back that up...anybody else notice this or should I be corrected?
    I agree totally on both accounts:
    1. Zonar will be my next card, after being a Creative customer for almost 20 years. The old SB Live was the best card out of all of them.
    2. Depends on how much $ it costs at initial purchase. Life expectency seems to corralate with initial $ outlay.
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  6. #166
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Quote Originally Posted by Mumid View Post
    It is for a rev2.0 board mate. I have upgraded to an Asus P5Q Deluxe P45 board now anyway and that has no DPC issues but as I say that bios did completely fix my DPC latency issues on the Gigabyte. All I can say is there are other things that can cause latency issues and but I think Gigabyte are working hard on the bios problem anyway. There were also other fixes in that bios e.g. i could now select 'Extreme' memory performance enhancement. That F13e beta bios was the best bios I used for P35-DS4 and like i say it totally fixed the latency issue.
    Ahh cool, well thanks. Either way he should not use it anyhow as he has 2.1 board.

  7. #167
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Anyone know if the X48-DQ6 has this issue? Or is it just the P35 boards?
    EP35 DS3P (F4 bios), Q6600 @3.0GHZ, Zalman 9700, 4GB Mushkin 6400 EP, Corsair 620HX, Antec Nine Hundred (2 intake front, rear and top exhaust), Sapphire HD4870 512MB, 2X Raptor 150GB RAID 0, Xonar DX, 2X DVD Drives, Dual Boot XP Home and Vista Ultimate 64-bit

  8. #168
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  9. #169
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Quote Originally Posted by Lsdmeasap View Post
    I believe just the P35 boards

    Thanks LSD...IF I stick with Gigabyte it will be in part to the work you do here. Keep up with the posts
    EP35 DS3P (F4 bios), Q6600 @3.0GHZ, Zalman 9700, 4GB Mushkin 6400 EP, Corsair 620HX, Antec Nine Hundred (2 intake front, rear and top exhaust), Sapphire HD4870 512MB, 2X Raptor 150GB RAID 0, Xonar DX, 2X DVD Drives, Dual Boot XP Home and Vista Ultimate 64-bit

  10. #170
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    Default Re: P35 Motherboards and DPC Latency Spiking

    Thanks for your support. I myself plan to pickup a P45, if you plan to go the X route, you should wait and get a X58

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