[Project] Loricatus Draco (Armored Dragon) {ever evolving} - Page 4 - Overclock.net

blitz6804 · 03-23-09

The spec for DDR2-800 single-channel mode is 6400 MBps. Dual-channel could be upwards of 12,800 MBps in a perfect world. In theory, you cannot exceed 6400 MBps for single-channel or 12,800 MBps for dual-channel.

**thlnk3r** · 03-23-09

Quote:

Originally Posted by blitz6804

The spec for DDR2-800 single-channel mode is 6400 MBps. Dual-channel could be upwards of 12,800 MBps in a perfect world. In theory, you cannot exceed 6400 MBps for single-channel or 12,800 MBps for dual-channel.

Blitz, in that case you are running way below the "theoretical" speed of 12,800MB/s

I guess it's safe to say we can't always assume memory will calculate at each clock cycle.

Good luck

blitz6804 · 03-23-09

Aside of Skt 939, I have never seen a system reach the theoretical dual-channel rate. DDR-500 has a theoretical rate of 4000 MBps, dual-channel of 8000 MBps. I have seen as high as 7900 MBps, which is darned close. My Brisbane rig had a theoretical of 13,008 MBps, but brought in 9400 MBps, which is darned good compared to my contemporaries. My friend's Skt T (LGA 775) has a theoretical bandwidth of 16,000 MBps but it actually pulls in 7500 MBps.

blitz6804 · 04-06-09

My RAM was delivered to the leasing office while I was out of town. My new CPU cooler (NH-C12P) was held at the post office because I had a hold. I think the hold expires today, so I should have the RAM installed tonight, and the cooler installed tomorrow.

blitz6804 · 04-06-09

I now have the RAM installed. It made 8 passes of Memtest86+ without a single error.

I also received my Noctua NH-C12P, although I have yet to install it. Unlike the NH-U12P, which comes with standard brackets and 90º brackets, the NH-C12P only comes with standard brackets. With my motherboard, this means the pipes will face right or face left. I have emailed Noctua to see if they will send me some 90º brackets so I can point the pipes up.

blitz6804 · 04-07-09

It seems the NH-C12P has a different base than the NH-U12P. In the words of Noctua:

Quote:

Originally Posted by Andreas Karner of Noctua

Dear Mr. <Censored to comply with OCN rules>,

first of all many thanks for choosing a Noctua product.

Unfortunately even if I send you a pair of these brackets they won't be of much use,
because you can't install them on the heatsink. The base-section of the NH-C12P is
quite different from our tower coolers, for which the 90° brackets were originally
designed. I'm sorry that we can't help you in this regard.

--
Best regards,
Andreas Karner

I have replied asking if there will ever be 90º in future as to permit all K8s/K10s a vertical heatpipe orientation. I will get back to you when they reply. However, I am likely installing the cooler this afternoon; we will see how it does.

The biggest thing I am looking forward to: Once I install the mounting bracket, I will not have to remove the motherboard anymore! Yes, this cooler has a mounting bracket you attach to the board, and then the cooler screws into the bracket, with the end result that you can reseat the cooler while in the case like I could with my Zalman CNPS9500LED.

blitz6804 · 04-07-09

Well, that answers that:

Quote:

Originally Posted by Andreas Karner of Noctua

Hello again,

we've discussed this topic a few times but it's not so easy, especially if we don't want to change the heatsink itself, which would generate additional costs.

We are aware that this limits the possible options on AMD mainboards but regaring performance our internal tests showed that installing the heatsink in a tower case, with the heatpipe ends facing sidewards reduced cooling performance only by 1°C.
Furthermore having the chipset heating up the bents of the heatpipes can have a negative impact as well so having the ends of the heatpipes facing upwards isn't always the best option.

--
Best regards,
Andreas Karner

Noctua technical support

**thlnk3r** · 04-07-09

Quote:

Originally Posted by Andreas Karner of Noctua

our internal tests showed that installing the heatsink in a tower case, with the heatpipe ends facing sidewards reduced cooling performance only by 1°C.
Furthermore having the chipset heating up the bents of the heatpipes can have a negative impact as well so having the ends of the heatpipes facing upwards isn't always the best option.

Blitz, that is interesting

If you have a friend that works in a machine shop or know someone quite well in that area I wonder if you could get some brackets fabricated...

Good luck

PS. Am I the only one following your build?

blitz6804 · 04-07-09

It seems that way at times. I think you are the only one operating in the AM.

HothBase · 04-07-09

I'm following your progress too, just haven't said anything

Nice to hear that you've got working RAM now. Too bad about the HS though, is it possible for you to use it anyway or is something in the way preventing you to mount it?

		Overclock.net - Overclocking.net > AMD > AMD - General > AMD Build Logs
[Project] Loricatus Draco (Armored Dragon) {ever evolving}

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)