Intel D875PBZLK

[TQ]

Originally Posted by wallijonn

I seem to remember where the 1T/2T "myth" was exploded at hardforum.com. ( http://www.hardforum.com/showthread.php?t=917047 ) Basically the author / testor said that it was useful as a benchmark but had no affect in the real world.

Which setting in the BIOS controls the choice of 1T/2T?

[feddup]

I'm not sure if anyone is interested but zipzoomfly has a few of the D875PBZLKs in stock. Options for socket 478 owners are getting scarce. I know Asus's P4C800-e Deluxe has been discontinued. I ordered one of these just to make sure I could run my 3.2Cs. Better Hurry!

[wallijonn]

Originally Posted by TQ

Which setting in the BIOS controls the choice of 1T/2T?

There is non. (But you knew that.)

Intel basically works at 1T (i875, at least. DDR2 is another story) until 4 DS sticks are thrown in. Then the 3% loss of 2T is made up by PAT to bring it back to 1T specs.Besides, what difference will it really make? By going to 4 DS sticks you increase mem throughput by 25%, so losing 3% will still give you about a 21% increase over what you had before. (Not that you'd notice if you're benching with Sandra in buffered).

If mem numbers were the end all I'd just buy the newest AMDs and Intels - then you'd be hitting the 6000 (and above) numbers instead of 4990 at 3-3-3-8.

Now, about having a swap space more than 1.5G... hardforum has a nice little article...

[Sandog]

Good post. I know Intel stated they were not making these boards any longer and that was at the end of last year so these must have been found left over from a warehouse somewhere. It is probably a very limited supply. They bad part is about the only processor you can buy for 478pin sockets any more are Prescotts and if I'm not mistaken it is the hotter .13nm Prescotts at that.

[wallijonn]

Which is why I'd rather pick up the DFI 875-T which has the i875, agp and 775. (But then DRM rears its ugly head. )

nVidia NF4: http://www.neoseeker.com/Articles/Ha...e4intel/3.html Just something to whet our appetites.

1T address timing is achieved when the address and commands are placed on the address bus by the memory controller and latched in by the DRAM devices, all in one clock cycle. The other alternative is 2T address timing, where the memory controller places the address and commands on the address bus in one clock cycle and the DRAM devices latch them in the next clock cycle. 2T address timing is used to ensure adequate setup and hold times for the address and command. This is necessary when the address bus is heavily loaded, which usually occurs when the address bus is shared by multiple DIMMs.

In essence, 1T timing reduces memory latency and the design of the nForce 4 memory controller allows for this whereas the current Intel chipsets do not. To take advantage of 1T timing, NVIDIA also uses a shorter burst length - with a 2T system this will increase latency further.

http://xtremesystems.org/forums/showthread.php?t=44785 6GHz.

[Sandog]

Originally Posted by wallijonn

There is non. (But you knew that.)

Intel basically works at 1T until 4 DS sticks are thrown in. Then the 3% loss of 2T is made up by PAT to bring it back to 1T specs.Besides, what difference will it really make? By going to 4 DS sticks you increase mem throughput by 25%, so losing 3% will still give you about a 21% increase over what you had before. (Not that you'd notice if you're benching with Sandra in buffered).

If mem numbers were the end all I'd just by the newest AMDs and Intels - then you'd be hitting the 6000 (and above) numbers instead of 4990 at 3-3-3-8.

Now, about having a swap space more than 1.5G... hardforum has a nice little article...

Chipset Configuration:

CPC Override

• Auto (default)

• Enabled

• Disabled

Controls the CPC/1n rule mode. Enabled allows the DRAM controller to attempt chip select assertions in two consecutive common clocks.

This looks bad because I cut and pasted from the D875PBZ technical document but I am pretty sure this is the 1T/2T thingy. Enabled is 2T which it will basically have to be set to for 4 sticks or else you will have problems.

[wallijonn]

I'd figure I'd go looking for the CPC "thingy"... I knew there was a reason why I shouldn't try and set it to 2.5-2-2-5... I had the usual lockup. Time to pull the battery... Yep, back up again and loving my standard settings of 3-3-3-8.

btw, I looked at the DFI website and it says that the max it supports is 512MB DS sticks. hmmm.

'night y'all.

[TQ]

Originally Posted by wallijonn

There is non. (But you knew that.)

Truly, I didn't. I've only very recently become aware of it and really had no idea what it was.
You're explanation has been very informative.

You also reminded me that I forgot to consider my pagefile size now that both of my machines are running 2GB. It's fixed at a static 1024.

[TQ]

By the way, my love affair with the X-Fi continues to grow. This card was so easy to setup exactly the way I wanted.
I ran my active sub/main speakers information from the X-Fi line-out to the CD input on my Denon, the X-Fi breakout box handles my headphone output.
With this configuration I can mute the mains and still have the sub's audio available. Or Mrs.TQ can run with mains+sub and not have to mess her hair up with those icky headphone things.

I can't say enough about the sound of this card. It may well be the single, most significant component that I have ever added to a PC gaming system.
I was running Doom III:RoE and it sounded like I was in the middle of an action film. One of the most impressive aspects of the card (well, along with the astounding CMSS surround headphone upmix) is how tight and powerful the low end is on my sub.
The X-Fi isn't hyperbole...it's real. I pity those knee-jerk Creative Labs haters (no one in this thread, of course) who will sit on their current cards and never know the glory of what is within their reach.
The audio is the cleanest I have ever heard and that's with my fifty-two year old ears that have spent decades under headphones and, in my younger years, at hundreds of concerts.
I'm really sensitive to distortion and grunge (heh, I deliberately insert distortion and grunge into audio mixes on a daily basis) and the X-Fi simply has none. It is a thing of beauty.

[jpbug]

Hi all,

I've been experiencing some issues with my D875PBZ rev. 303 / bios P34 (with a 3.0GHz Northwood, a X800 Pro, Audigy2...).

I had previously 2x512 MB of Kingston PC3200 (Value RAM) running just fine. I tried to add 2x512 MB more and my windows XP (SP1) hangs during the XP boot screen (the black one with the green progress bar), when this screen flickers (the video is initializing?).

I thought this Kingston RAM was defective and I tried a Corsair 2x1GB 3200C2 kit I got running in another rig, and the result is the same - even with very conservative memory timings.

I was a little overwhelmed by the thousands of post on this thread, and I did not turn up anything useful during my search.

Help appreciated !

Thx,

jpbug

[Brian]

Originally Posted by feddup

I'm not sure if anyone is interested but zipzoomfly has a few of the D875PBZLKs in stock. Options for socket 478 owners are getting scarce. I know Asus's P4C800-e Deluxe has been discontinued. I ordered one of these just to make sure I could run my 3.2Cs. Better Hurry!

These are green, stripped-down, OEM versions of the D875PBZLK. these are not retail boards. I know, I bought one. You will notice that you have to endure the great pleasure of putting the CPU retention bracket in yourself and that there are some headers for fans missing and connections for front panel LED's missing as well.

I wanted a retail version so I sold the D875 to a friend and got myself a D865PERLL as a backup to my current D865PERLK.

If anyone is interested, I did send an email to TigerDirect asking if the D875PBZLK's they are selling are retail or OEM and they responded a day later saying it was, in fact, the retail box version. (But this was over a month ago so you should call/email them yourself if you want to verify their current stock.)

Intel D875PBZLK At TigerDirect.com

[Brian]

Originally Posted by TQ

By the way, my love affair with the X-Fi continues to grow. This card was so easy to setup exactly the way I wanted.
I ran my active sub/main speakers information from the X-Fi line-out to the CD input on my Denon, the X-Fi breakout box handles my headphone output.
With this configuration I can mute the mains and still have the sub's audio available. Or Mrs.TQ can run with mains+sub and not have to mess her hair up with those icky headphone things.

I can't say enough about the sound of this card. It may well be the single, most significant component that I have ever added to a PC gaming system.
I was running Doom III:RoE and it sounded like I was in the middle of an action film. One of the most impressive aspects of the card (well, along with the astounding CMSS surround headphone upmix) is how tight and powerful the low end is on my sub.
The X-Fi isn't hyperbole...it's real. I pity those knee-jerk Creative Labs haters (no one in this thread, of course) who will sit on their current cards and never know the glory of what is within their reach.
The audio is the cleanest I have ever heard and that's with my fifty-two year old ears that have spent decades under headphones and, in my younger years, at hundreds of concerts.
I'm really sensitive to distortion and grunge (heh, I deliberately insert distortion and grunge into audio mixes on a daily basis) and the X-Fi simply has none. It is a thing of beauty.

SOLD!





Where did I put that credit card...

[GFORCE100]

Originally Posted by Sandog

Good post. I know Intel stated they were not making these boards any longer and that was at the end of last year so these must have been found left over from a warehouse somewhere. It is probably a very limited supply. They bad part is about the only processor you can buy for 478pin sockets any more are Prescotts and if I'm not mistaken it is the hotter .13nm Prescotts at that.

There never was a thing such as 0.13 micron Prescott's but there were early stepping versions used in socket 478 platforms that were hot hot hot.

[TQ]

Tell you something funny that happened last night while I was playing DSII...Mrs.TQ was off to dog training class with baby Halo (no, she wasn't named after the game, God I get that a lot ) and big sister Belle and I were home alone.
My lightning mage was electrocuting dozens of nasties in an indoor environment. When there was a break in the action I kept hearing some odd sounds that I thought could be something moving around in the house. I got up to investigate, thinking that Belle was up (she hurt a foreleg night before last catching the frisbee and she needs to rest and heal). I found her asleep in the front room chair and I dismissed the noises. Probably the Oliver the cat doing whatever. I went back to playing the game. Same thing after a while...noises in the house. I took off my 'phones and looked around again. Nothing.
It turns out that "noises" were ambient sounds in DSII. The superb CMSS surround headphone upmix had "positioned" the audio so that it sounded outside of my headphone space.

I love my X-Fi.

[Ralf Hutter]

Originally Posted by Sandog

I've been following your posts TQ, way to keep us updated. There are still questions I have about the D875PBZLK and they relate to how and if it can run 2GB of RAM. If you can run 2GB at 2.5-3-2-5 then that is excellent.

I'll letchya know pretty soon. I have a 2GB dual pack of the 1024MB Mushkin HP3200 (rated at 2-3-2-6 @ 2.6 to 2.8V) coming to try on my rev303.

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BTW, a bit OT, but my spellchecker flags "sandog" and suggests "sandhog" as being correct. Perhaps you should ask the ABX Queso Grande if you can change your username.

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