Upgrading M18x CPU to the 2920 xm

[Shaden]

Hey Shaden , did you order the dual heatsink for your upgrade ? , if so is there a direct number to contact them to order parts , and whats involved in taking these beautys apart, knowing me i will have a few screws left over , but is it a major job or quite straightforward ? , and just check your score , how the hell did u get 8k with your setup did you do a volt mod and put it in the fridge when u benched lol , anyway any links would be helpful , the cpu should be here hopefuly in a week so just need to order up the heatsink and paste , and where i live there is no winter its 40 degrees as we talk .

Mine came with a dual piped HS yes but I didn't order through dell

Lol. There is a guide up here and on T/I that is super helpful. So is Aikimox's video for action shots. My suggestion is to use Post it notes, put the screws head down on the sticky part and label where they are from underneath. very easy to keep track of that way.

And no, there is no overvolt or anything. I happen to have very good 6990s, and pushed and worked them incrementally to get them where they are, also used Hwinfo for fan control. I OC'd my 2630 by playing with the power durations to max turbo boost and increased my Bclk to 107.48



Can't wait to get some new records with this 2920, but its goign to have to wait til next week. I am away for the weekend.

I bought a 2920XM QS (D1) and already installed it into my m18x. Currently I am using a single pipe heatsink. The temp. seems pretty good. around 85c fully loaded, and 42c IDLE with room temp. 25c (withou oc). I ordered a dual pipes cpu heatsink but it takes 4~6 week to deliver to me (dell said they don't have that part in stock at that moment). Dell sent me a picture of the heatsink, it has "FCN 1-2" on the surface. And all the other dual pipes heatsinks i saw is "FCN 1-1". It seems like i am going to get a new version of heatsink. ^ ^

here are the picture of FCN1-1 and FCN 1-2 (can't see the difference):

It Looks like the grill on the second heatsink is a little bigger ...

The main difference that i could see aside from the 2 pipes on the dual pipe HS ... is that the Grill on the single pipe looks/feels like aluminum ... not copper ... and the dual pipe the grill is copper.

[Aikimox]

That is correct, it's alum vs copper but the size of the grills is the same.

[Shaden]

Yea I meant the difference btween the 2 pics ... the 1-1 and the 1-2 heat sinks... the 1-2 looks like a slightly deeper heatsink ... BUT ... that might just be the angle and lighting of the shots ...

PS ... I would recommend anyone ordering a Non-Xm CPU to ask if dell will put in the 2piped HS ... I must imagine this would make a nice temp difference with a normal CPU but would also cool overall GPUS temps as well.

[Aikimox]

with the 2-piped HS my 2630QM was around 67C in Prime95

[Shaden]

Did you notice drops in your GPU temps as well ? or did you not establish a baseline enough before ?

[Aikimox]

Haven't noticed any changes there.

[Shaden]

hrm ... thought just by adding the extra copper and that heat grate there would be a difference in dispersion ... esp on GPU 1

[electrosoft]

The one shipped in my current M18x extreme heatsink is a FCM 1-3. All others were 1-1, 1-2.

Not sure what bearing that has on anything. It did weigh ~2 grams more on the scale (47g vs. 44-45 for the others and felt more bottom heavy towards the exhaust then the others.

One thing I noticed about the 1-1 was the dual copper pipes have a noticeable space between them (in the pic above and in one I saw physically). You will also notice the 1-1 where
the dual pipes are connected to the copper exhaust they are not flush to the edge but pushed back a bit.

Here is my M18x CPU heatsink FCM 1-3:

[mharidas]

Their triple piped HS is very similar in heat transfer efficiency to the 2-piped one and thus won't help much.

I was interested in knowing their price. So I could compare how much more I will be spending on my Heatsink mod project.

Do you know the cost by any chance?

[joesipzhou]

I was interested in knowing their price. So I could compare how much more I will be spending on my Heatsink mod project.

Do you know the cost by any chance?

In Australia, I bought it for 63.80AUD includes tax and delivery. (dell told me it was 90 something in the fist place, but I lied to they said I called earlier and the price they gave me was 50 something. The staff looked again and give me 63.80 for the lowest she could offer). In USA, I think I saw someone saying that is lower 50 USD.