Dell :: Studio XPS 1647: PM55, HM55 And Switchable Graphics

Mar 22, 2010

I have been asked to start this thread by a Dell representative so this issue can be cleared up. It will also serve as a thread where future information relating to the 1647 chipsets (and ultimately switchable graphics) can be posted. This has been talked about in the owner's lounge but I'm sure most owners agree that this issue is of enough importance to merit its own thread.

As most 1647 owners are aware, the 1647 is not being shipped with the HM55 chipset, despite Dell's website claiming it would be:

Instead it is being shipped with the slightly older PM55 chipset which was introduced back in September 09' with the quad-core mobile i7's, and is the chipset used on the 1645. This has been confirmed here, here and here.Why would you want the HM55 instead of the PM55? For most, it's one simple reason. The HM55 chipset supports utilisation of the on-die IGP on the new Arrandale range of CPU's. The PM55 unfortunately does not; it cannot transfer the IGP data to the laptop screen, due to the lack of Intel's FDI bus capability (Flexible Display Interface).What does this mean? As the PM55 can't utilise the graphics processor built-in to the new Arrandale CPU's, then switchable graphics is not possible.So if we had the HM55, would we have switchable graphics? At the moment, no. Basically something like NVIDIA's Optimus software is required. Currently ATI do not offer a switchable graphics software solution. BIOS support would also be required from Dell.But, if software and BIOS support is eventually offered, I won't be able to utilise SG anyway, as I have the PM55, right? Correct. This is what we need Dell to clear up. Most owners (not all) purchased the 1647 on the premise that they would receive the HM55.For those interested, some further information on the PM55/HM55 chipsets and switchable graphics can be found here. Chipset information can be found below.

Mobile Intelģ PM55 Express Chipset
Mobile Intelģ HM55 Express Chipset

There is however one "flaw" that would be present if Dell actually went by the chipset and CPU listings on their website. The flaw is the i7-620M. It's a dual-core 32nm Arrandale CPU with an IGP. In other words, it's far more like the i5-520M and i5-540M than the quad-core 45nm i7 CPU's. So, according to Dell's website listing, the i7-620M (as it's an i7) is to be shipped with the PM55. This issue will hopefully be cleared up by Dell also, so let's wait and see what they say.

Please let me know if I have missed out important information and I will include it here. Similarly, this applies if any of the above information is incorrect, please let me know and I'll correct it.

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Dell :: Studio Xps 1647 Switchable Graphics Support?

Jan 11, 2010

It looks like Dell will be upgrading to the mobility HD 5730 (which is lame, by the way, since there will amost certainly now be no gddr5 memory but thats for another thread).

But my question is whether they have enabled the switchable graphics or are making us pay for an IGP we will never be able to use.

I'll bet the lazy engineers at Dell wont bother with it and argue that you dont need intergrated graphics if you have discrete graphics and so on ......

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Apr 4, 2013

I have an InspironR Special Edition 7520 and my AMD 7760 2GB will not activate or do any graphics processing. It is stuck on the Intel Graphics. I am running windows 8.

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-I ran NovaBench and it used the intel graphics card

-FurMark detected Intelgraphics as my main graphics card

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Feb 9, 2010

Read up on the new Nvidia optimus tech
[url]

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Their new driver scheme allows both GPUs to be used on a per application basis. The discrete GPU can power down completely when using apps that don't need its power, and power up in 300ms when you start an app that needs it.

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For other models, this looks like it will enable switchable graphics provided we can get the IGP enabled in BIOS. So the challenge now is to find the offset for the IGP like people did for the VT hacks.

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I had to clean install Windows 7 due to a problem I created in the first place. Anyway, everything runs fine, except for the Radeon graphic card. 

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I installed the last version of the Catalyst driver, and when I right click on the desktop, it says "switchable graphics", but if I click on that, it just shows me another option from the Catalyst, HydraGrid. 

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I replaced hard drive with SSD and installed windows 7 ultimate (X64) on my HP Pavilion G4 notebook. However, I am not able to install switchable graphics on my laptop now.
 
I have tried this
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4. I also updated BIOS as suggested at [URL] ..... but still no luck......
 
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Dell :: Studio XPS 1645 Vs Studio XPS 1647

Feb 23, 2010

I am looking to get a Studio XPS 16 soon, but can't quite decide on which model to get and had a few questions...

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2) When configuring the 1645 and 1647 side-by-side with the same specs. The 1647 is about the same price as the 1645, if not more (depending on which processor selected). I thought the i5's were supposed to be less expensive than the i7's. Since they are about the same price, would it be better to go with the i7? Any reason to choose the i5 over i7?

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Mar 9, 2010

I'm getting this next month (or the order says I am), and I have a couple questions reading this forum:

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2. What is throttling? I do a search on the internet and all I get is Drag Racing info Is that when the fan starts to spin super hard?

3. I've got a 1640 that I'm selling once I get it....it's new from Dell because of an exchange so no warranty (but can be upgraded by the buyer), what do you think is a fair asking price? It's a P8700 2.53 Core 2 Duo, 4GB RAM 320GB HD, 512MB ATI 3670. HD screen, etc.

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Dec 3, 2009

I've been starting to see more references about Studio XPS 1647 here and on Dell's site, but I couldn't figure out what distinguishes this model from the others (1640 & 1645).

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Dell :: M15x Or Xps Studio 1647!

Feb 16, 2010

is the alienware m15x experiencing throttling and heat problems like the 1647/1645?

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Also i've heard lots of things regarding XPS machines running very hot, is it very bad? Or is it one of those things that are just blown out of proportion?

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Jan 28, 2010

I currently have the Studio XPS 1645. My uses for the machine are client visits, presentations, and occasionally gaming on the road.

I probably only log 5 hours a week on the laptop 3 weeks a month and 30 or so in the other week (when I am not at home).

I have read about the throttling issue and this is my last day to return. So knowing my usage pattern. Would you keep the quad core or change out for the 1647.

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Dell :: Opinions Wanted On Studio XPS 1647

Dec 28, 2009

Is the 1647 the new replacement for the 1645?
Can anyone confirm it does NOT have the power problems?

Here's what I'm contemplating - opinions accepted.
Only thing ticking me off is no Blu-ray option available until 4th week of Jan.


224-6716 1 Studio XPS 16 Notebook
317-2361 1 Intel CoreTM i7-720QM (1.6 - 2.8 GHz 6M/8 threads)
317-2364 1 4GB, DDR3, 1333MHz 2 Dimm
320-8330 1 15.6 inch Wide Screen 16:9 1080p Full HD WLED LCD, W/2.0 MP, XPS 1645
421-1010 1 Dell Webcam Central v1.4
421-0188 1 Facial Recognition
320-8350 1 ATI Mobility RADEON HD 4670 1GB
330-5460 1 DELL RESOURCE DVD,BACK-UP,XPS 1645
341-8989 1 500GB 7200RPM Free Fall SensorSeagate Hard Drive
320-8351 1 Obsidian Black High Gloss Finish
421-1737 1 Genuine Windows 7 Home Premium, 64bit, English
421-0323 1 Windows Live Search,Multiple User Interface
420-6576 1 DELL WELCOME,Software Dimension/Inspiron
420-9100 1 Dell Dock Consumer
420-6436 1 PC-Restore, Dim/Insp
421-0187 1 Dell Support Center Software 64 Bit 2.0
420-7938 1 Dell Connect 2.1
421-0092 1 DELL-DOWNLOAD-FLAG .....

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Dell :: Studio XPS 1647 Recommended For Gaming?

Apr 27, 2010

From what I've heard it seems like the Dell Studio XPS 1647 has good enough specs to play a good number of games. But I want to ask the community who owns a Studio XPS 1647 to give me their opinion on it when gaming on it. Note that I'm well aware that the Dell Studio XPS 1647 isn't made for just gaming. Anyways I'm planning on buying one but I'm not too convince to do so.

I plan on playing games on the Studio XPS 1647 most of the time, but I'm also willing to do other things such as surfing on the internet, homework, etc.. From looking at the specs I believe that it would be a good computer to buy, but having to look at the graphic card (ATI Mobility RADEONģ HD 4670 Ė 1GB) I'm not too sure that I'll be able to play the games I want to play with the graphic details I want to play in. When I say games I mean like Bad Company 2, Starcraft 2 etc..

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Mar 17, 2010

Just curious if anyone else is having this problem/glitch when I unplug the laptop from AC power and the screen brightness is turned up about more than 1 tick the screen turns really red and dark but then brightens up a second later.

It seems odd that it turns mostly red and then back up to normal in a second

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Mar 25, 2010

So if you have followed my system you know what I have gone through, if not just know that it's in the UPS system making its way back to Dell.

I'm planning on re-ordering either before or after I receive my refund, but before would only be possible if I can get my system down to ~2500.

My original system is below in my signature for $2453.00 (includes tax + shipping) .....

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Jul 31, 2013

Got a the beep codes, but apparently they don't mean anything with this model.I have no POST, and it's a black screen. The LCD icons (sounds, mutes, et cetera) are doing nothing out of the ordinary. I did the LCD BIST, and the colors came up fine.

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Dec 5, 2009

today I bricked my new 1645 when I was examing the BIOS for the 1647. The BIOS release 1647_A00.exe released this month automatically begins flashing on an 1645

and does not seem to check compatibility or confirm with the user before it updates.

The BIOS is completely incompatible with the 1645 to say the least, so be very careful if you download it on to a non-1647 system.

Dell is building a new system due to this really sad event. Rip XPS 1645 - December 5th 2009.

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Dell :: STUDIO XPS 1647- ONLY HAS MOBILITY 5730-no GDDR5

Jan 11, 2010

Turns out from the Dell Canada website that the new and (supposedly) improved studio xps 1647 will only sport the ATI's mobility 5730 which incidentally does not support gddr5- EVEN AS AN OEM OPTION! Many expected to see the mobility 5770 in the updated SXPS'S or at the very least, a 5750 WITH 1GB OF GDDR5. The 5730 is simply unacceptable! Dell charges TOP DOLLAR for these little puppies and now they are cutting corners on the GPU'S! Dell should be ashamed!This laptop does not even deserve the XPS moniker. The graphics are too weak. It should be a Studio Pro 1647.

AS WE ALL KNOW ALL OF ATI'S NEW MOBILE CARDS USE A RATHER LAME 128 BIT MEMORY INTERFACE AND AS SUCH, RESONABLE PERFORMANCE CAN ANLY BE ACHIEVED WITH THE USE OF GDDR5 ram which runs at about twice the speed of GDDR3.

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May 2, 2010

Yesterday my computer crashed 3 times for no reason so I went to check BIOS and by chance found out that my ram is actually 1066Mhz. The order sheet says I ordered 4GB, DDR3, 1333MHz 2 dimm, and I remembered I did as well. So, did Dell send me the wrong RAM?

Or, as I've googled, is this all a Dell marketing scam such that the 1333MHz ram we ordered only performs at 1066Mhz by default and you'll have to manually overclock it to perform at 1333Mhz (which may not be safe for the system)?

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