I just want to say that I just installed the beta bios "13b" that was provided to me from Janus in Gigabyte Tech support for the GA-P35-DS4(rev2.0) and it works like a champ. with F12, and a barebones simple new XP Pro install, not even a soundcard installed, I was seeing regular speaks in the 700us range and occasionally some around 1500us. Installed F13b and now a "spike" is 40us, even when I am moving the mouse around like crazy...and often times it is under 10us.

I think Gigabyte is on top of the issue, whatever it is. Let's hope it makes it out into all of their board's production BIOS releases.

By the way, a Q6600 is in my board and its overclocked lightly to 3.01ghz and working fine with this bios, but I left the settings from the previous BIOS as suggested by Dan in order to retain the vcore settings.

Anyway, just wanted to report something positive.

Good to hear dewdman

Absolutely! kwild sent me the beta-bios (thanks!) and my system runs stable and with 128 samples latency until asio reaches 100%, then the first(!) klicks appear.



GA-P35-S3G
Q6600 G0
RME 9652 PCI
2x UAD-1 PCI
2x Powercore PCI
ATI HD3570 passive

average DPC is 12 µs

USB MIDI does it's own to the DPC: when having big MIDI traffic such as controllers DPC reaches 125 µs, bud did not affect audio at all until now.

I don't know how to help you. I actually used a flash drive this morning to do my Gigabyte bios and it was totally painless. My flash drive is an SD card kind of thing...and it showed up as HD in Q-flash, was totally painless. Not sure what is going on with you, but I'm pretty sure its an issue about the flash drive being formatted correctly. Check with gigabyte support or the TweakTown forum for more help on that.

Ok, finally got the board to flash. I believe the problem was with the Lexar Jump USB drive. I ended up making a small fat32 partition on one of my hard drives and flashed from there.

BUT!! the beta bios P35DS3L.F8n did not fix the problem. Still getting spikes -- in fact, the spikes were a bit worse, but still under 1000.

So, I tried the old f3 bios, and that DID get rid of the spikes.

But just curious, to those of you with this motherboard (ga-p35-ds3l), has anyone used the P35DS3L.F8n beta bios and if so, did it get rid of your spikes?

Thanks,
Mahlon

Hi guys! Just decided to purchase GA-P35-DS3R and sadly there is no this model in warehouse anymore :(
They offered me GIGABYTE GA-EP35-DS3R with this E before the chip set...
Any experience...?


Currently I'm with Asus P5K but I cant get rid of DPC spikes... Reading all the forums and disabling everything/new drivers, updates...etc.../
Also I've found that the PCI slots on P5K are shared and on the GB mobo the 1st one is dedicated. That's why I decided to move on Gigabyte.
EMU1212M here

Thanks!
Dimi

Wow, great! Just placed my order!! :)

repeating pattern and sometimes constant spiking...:(

Running the GA-P35-DS4 here with beta bios 13B, which also eliminated the DPC spiking. Running here at 3.2ghz also, no problems. Hopefully gigabyte will move these fixes into production, but I agree with Dan, you might want to consider that issues before you buy a gigabyte board.

ORIGINAL: dewdman42

Running the GA-P35-DS4 here with beta bios 13B, which also eliminated the DPC spiking. Running here at 3.2ghz also, no problems.

Dewdman,

Did the Xigmatek cooler work out for you?

Seems to be working good. Overclocked to 3.2ghz now and idle temps are around 32C while mousing around and surfing the net. Prime95 loads it up in the upper 40's. Using vcore 2.875.

I had it overclocked a little higher, but the temps were getting into the 50's, even approaching 60 and I had to go well over 1.3v, etc..I just decided that this is a nice compromise and the difference in performance between 3.2ghz and 3.4ghz is not that much. It runs cooler now at 3.2ghz with this cooler, then it did at 3.0ghz with the stock cooler. but it seems like moving up from here requires quite a few more volts, so I'm sticking with 3.2ghz for now.

I didn't end up using the backplate thing to mount it because I read about the copper plate on the back of my mobo. I didn't take it out of the case to find out. Anyway, I have an extra backplate if anyone needs it now. ha ha. but it seems to work fine without it.

One question, are you seeing as a pretty regular pattern that the first core always seems to be just a bit warmer than the other cores? The 2nd core also, but not as much as the first. ?? For example, right now while mostly idle, first core is 35 and the others are 32. That is pretty typical. Under load the difference is a little bigger.

On another note, I have spent the past couple weeks playing around with hackintosh OSX on this pc and I have to say, I am impressed. Everything works 100%. I even got several of my win32 VST plugins working using Wine and EnergyXT, together with JackOSX. Works very well. I can even run Reaper in wine. Sonar does not work on wine though and probably never will. I had Project5 working briefly, but I would need to spend more time to sort out the problems after I upgraded to 2.5, if possible at all. I even got prime95 running under wine on OSX. Wild.

Most likely I will change to OSX permanently to be honest. I am so impressed with that OS and I have lost faith in Microsoft for the future. ...the OSX desktop experience is WAY SUPERIOR than anything else. I'm really impressed. The "Spaces" feature alone is worth the price of admission.

Anyway, one thing I found out through this experiment is that our mobo is one of the most compatible ones to use with Kalyway hackintosh. Frankly, I will probably end up buying a real mac next, but for now, I am going to use this. Performance wise, I'm benchmarking numbers that come pretty close to MacPro performance levels and blow away all the iMac and MacBook numbers.

Kalyway 10.5.2

cool. I won't worry about it then.

It was bad DVD media...
GA-EP35-DS3R.
I have installed my mobo now and all seems to work fine.
updated the bios, some usb ports disabled.
EMU1212M sound card on 1st slot - no IRQ sharing.

I've noticed DPC spikes when I'm trying to access the video settings. It is Gigabyte 8500 512mb silence model.
DPC meter Jumps to 500 - 700 us also when open Easy Tune it makes some bad spikes.

What video card model or brand do you suggest me for better compatibility with my new motherboard GA-EP35-DS3R.

With new beta BIOS DPC spikes are occasional.
I'm getting some around 500-800 when access the video settings or access EasyTune. The Dynamic Energy Saving software is not installed.