Anyone seen these? (Mobile A64's)...

bcassell · Post by **bcassell** » Tue Jun 01, 2004 3:21 pm

Just saw that newegg now has a section for Mobile Athlon 64's:

Mobile A64s

They now have a variety of mobile A64s at both 1.4v and 1.2v. The 1.2v cpus are listed as taking 35W of power, and if that figure is anything like the other power figures AMD's been giving out for their A64's the real power consumption might be even lower. Seems like these cpus could be the new kings of quiet, high-performance computing. Hopefully they just drop into any old Socket 754 motherboard =).

So... who's going to be the first to try them out?

Bryan

Edward Ng · Post by **Edward Ng** » Tue Jun 01, 2004 7:07 pm

One will need to be extremely careful mounting a heatsink on this, because the Mobile is missing the heatspreader that is present on the desktop version! This means one or both of two things:

1) You will need to be careful with extremely tight heatsinks like the Hyper 6, because there is no heatspreader to take the pressure; the core on these mobile A64s is just as sensitive as that of the K7s.

2) If your heatsink is normally gapped so as to apply just some pressure when mounted on a desktop A64, then you will have issues of the sink not being tight enough on this heatspreader-less A64, because it does not reach as high.

-Ed

silvervarg · Post by **silvervarg** » Wed Jun 02, 2004 11:02 pm

But if it fits in your normal socket A then a normal heatsink for an Athlon XP CPU should fit perfectly and it should be just as sensitive (no more no less).

Seal · Post by **Seal** » Thu Jun 03, 2004 4:59 am

That looks pretty amazing 35W is very low considering my mobile barton 2500+ is rated at 45W! I guess you would be able to passively cool that chip with a big heatsink and good general case airflow.

Edward Ng · Post by **Edward Ng** » Thu Jun 03, 2004 5:23 am

silvervarg it's an Athlon 64; it's Socket754. It is not Socket A.

-Ed

Post by **NeilBlanchard** » Thu Jun 03, 2004 6:16 am

Hello:

...and apparently there is no heat spreader -- which is either a good thing or a bad thing, depending on how you look at it. Putting a "typical" Socket 754 HS might have issues because it is "thinner" and therfore might have less pressure and poorer contact with the HS.

OTOH, the direct contact will transfer heat better -- but OTOH, you will have to be much more careful...

AZBrandon · Post by **AZBrandon** » Thu Jun 03, 2004 9:13 am

NeilBlanchard wrote:OTOH, the direct contact will transfer heat better -- but OTOH, you will have to be much more careful...

Considering they put off very little heat in the first place, it shouldn't need the heat transfer to be better. Seems like a very odd decision on AMD's part.

Post by **Rusty075** » Thu Jun 03, 2004 10:45 am

Improving heat transfer probably wasn't the reason for deleting the "heat spreader" (I hate that term, BTW, heat spreading is not what that thing's purpose is at all. That's just more Intel marketing speak slipping into the universal jargon)

Since laptop CPU's are only expected to have the HS applied once in their lifetime, and since laptop boards use a completely different attachment mechanism, having the protective cover over the core isn't as important. So they deleted it, saving money and weight (albeit tiny amounts of each, but even a couple of pennies per CPU adds up), and improving the cooling as well.

Jan Kivar · Post by **Jan Kivar** » Sat Jun 05, 2004 11:55 pm

Rusty075 wrote:So they deleted it, saving money and weight (albeit tiny amounts of each, but even a couple of pennies per CPU adds up), and improving the cooling as well.

Not to mention that they shaved off one mm or so from the height...

Cheers,

Jan

aidanjm2004 · Post by **aidanjm2004** » Wed Jun 09, 2004 7:08 am

bcassell wrote:Just saw that newegg now has a section for Mobile Athlon 64's:

Mobile A64s

Article at xbitlabs.com:

"Even though AMD positions its Mobile Athlon 64 chips for the market of extremely powerful notebooks, thermal design power of Mobile AMD Athlon 64 processors is 62W - really a lot for mobile central processing units. Thanks to PowerNow! And Cool n Quiet technologies, the chips consume significantly less electricity under typical load.

***Nevertheless, AMD still decided to create a version of the Mobile Athlon 64 with thermal design power of about 35W that is likely to be used on truly mobile machines that require low power consumption and extended battery life amid high performance.

Intel's Pentium M processors specifically tailored for notebooks consume up to 24.5W at 1.70GHz. Intel's Pentium 4-M processors at 2.40GHz and 2.50GHz typically consume 30W and 35W respectively under maximum load. Mobile Pentium 4 processors that are designed for DTR laptops have TDP of 60W - 76W at clock-speeds from 2.40GHz to 3.20GHz."

http://www.xbitlabs.com/news/mobile/dis ... 51818.html

Anyone seen these? (Mobile A64's)...

Anyone seen these? (Mobile A64's)...

...and apparently there is no heat spreader...

Re: ...and apparently there is no heat spreader...

Re: Anyone seen these? (Mobile A64's)...