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Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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I have a Dell Studio 1745 that came with a Core 2 Duo T6600 @ 2.2Ghz

I've researched, I can find nothing to indicate if this is possible however...

I want to upgrade it to the SLBTV - Intel Core i5-540M 2.53GHz/3M PGA988/BGA1288

Now they are both technically Socket P

I know with the 1747 they changed the socket so that it could have an i7, however would the Socket P i5 work with the 1745?

It is running the most updated Bios A04 if that helps.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hi pcphantom,

The Studio 1745 has Intel Core 2 Duo (Penryn) and Intel Celeron (Merom) processor which is compatabile with Intel Cantiga (GM45 / PM45) chipset. The Intel Core i5-540M 2.53GHz/3M PGA988/BGA1288 will be compatabile with these chipset ( PM 55, HM 57, HM 55, QM 57, QS 57) hence The processor which you want to install it in the system is not compatabile with the chipset.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hello HATCH38

i never got contact from PCPHANTOM about it 

so i took and did same upgrade by myself!

it works u only need new motherboard and new heatsinks

if   u have 4650hd gpx on ur old mobo then u can re use the heatsink they are same on 4650hd and 5650hd

the best cpu u can use is i7 640m 2.8ghz thats what i bought

everything fits in no problems i added ssd and this laptop is a beast

View solution in original post

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hi pcphantom,

The Studio 1745 has Intel Core 2 Duo (Penryn) and Intel Celeron (Merom) processor which is compatabile with Intel Cantiga (GM45 / PM45) chipset. The Intel Core i5-540M 2.53GHz/3M PGA988/BGA1288 will be compatabile with these chipset ( PM 55, HM 57, HM 55, QM 57, QS 57) hence The processor which you want to install it in the system is not compatabile with the chipset.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Yeah I unfortunately ordered after reading another post and then discovered it would not work. Hence I am not looking at upgrading the motherboard.

I looked and the 1747 and 1745 have the exact same physical appearance so I believe the motherboard from all I've read will work.

I am however having trouble locating a motherboard that I know to be compatible.

I looked at J507P on eBay and these listings are so generic it's hard to say.

On the picture one zooms in and it says PGA988 (the Intel socket) right in the picture, but then says it's compatible with the AMD Quad core.

Since I assume AMD and Intel aren't playing so nice they're sharing a socket, I can only assume they are <ADMIN NOTE: Substitute character removed as per TOU>

stock photos.

Any chance you know the model number of the Intel PGA988 board with the AMD graphics?

If I am gonna upgrade the motherboard for this processor, I'd like to at least get a GPU upgrade as well out of it.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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I am also looking at LA-5155P, which seems to be from a 1749 so I am uncertain if that one is the same fityet.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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I also understand if I upgrade the Motherboard to match this new processor I will also need to upgrade to the appropriate heat sink & fan for both the CPU and GPU as well as get pads. I'm finding these bare dell refurbished motherboards between $40 & $80 which to me is dirt cheap. I already upgraded the keyboard to the back-lit one, added Bluetooth,  added the TV tuner and got the kit to install a 2nd HDD. I figure if I can add a hundred or so dollars worth of refurbished parts and finish this into an i5 system with a good GPU it might be worth upgrading to the touch screen monitor and using this system for another few years and coming out way cheaper than buying a new laptop.

Any advice you can give on this? (besides don't do it lol, I may sound crazy but I'm not).

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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The 1745 and 1747 are close enough that the boards interchange.  I've never seen anyone swap a 1749 board (newer) into the older -5 or -7 chassis.  You can try it - but you  may find you'll also need to replace at least the bottom shell of the system - the mounting points could well be slightly different, despite the outside appearance.

One place you can ask -- where they will know - is parts-people.com.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Yeah I looked into it and used them to find the heat-sinks for the CPU and GPU. It "Looks" like it's a perfect fit and when I looked up the specs on the 1745 vs 1749 even in dimensions they are identical. I looked up many of the parts on their site and they look interchangeable so I think I'm good. 

Gonna be one heck of an experiment. I'll say this if it works I'll be set. I'll go from a mediocre Core 2 Duo T6600 @ 2.2Ghz to an i5 - 540M @ 2.53Ghz.

The Huge difference will be going from a bad Intel Graphics (Pre-"i" series) with no graphics ram at all to a  1GB Discrete HD 5650.

That is an awfully big upgrade for a total of $115. ($30 CPU, $65 MB, $20 Heat Sinks)

I already replaced my worn out keyboard with a new back-lit one for $20, added Bluetooth for $6, and got the bracket to add a 2nd HDD for $13.

Also, I swapped the RAM out of my ThinkPad before I sold it so it has 8GB now.

I put a 1TB 7200 RPM HDD and have been thinking of putting in a 256GB mPcie SSD that's like $160 and the TV tuner is $17.

I bought this laptop from the original owner when a pawn shop I was working on their computers didn't want to take it for $100, so all in all I think it's been a great investment. 

There is just one thing I can't figure out and that is what parts would be involved in upgrading it to a touch screen.

You think that's overboard?

I was thinking if I invest this money into it I'll have a far better machine than I could ever dream of touching for that kind of money.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Oh and I had made a new thread to ask about it since this one's original question had technically been answered.

Though I went with the 1749 motherboard LA-5155P which only seemed to require changing the heat sinks for the CPU and GPU.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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There is no way you'll be able to add an internal touchscreen - there just isn't space for one in the display bezel.  You'd have to hack it with a semi-external rig that would prevent the system from being closed -- and probably end up with a half-working touchscreen.

Working touchcreens need mainboard support and other hardware - this system was never built with one. 

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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According to Dell's web site it was available with touch screen. Even when I pull my system on Support & Drivers there is the option to download all the touch screen drivers, software, etc. I found a touch screen on eBay also that says it's compatible, though on the parts people I also found a cable that appears to be required as well.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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You will need to replace the screen, cable and mainboard to change to a touchscreen - and likely the display bezel and back cover as well.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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I have looked through every part for the Dell Studio 17 (45, 47, 49) and there seems to be nothing that differentiates between touch screen and non touch screen. Like with Motherboards there appears to be just 4, AMD w/ Discrete Graphics, AMD with onboard graphics, Intel with Discrete Graphics and Intel with onboard Graphics. The only thing I found different was a different connector cable for the monitor listed on parts people.

Dell Studio 1749 17.3" Touch Screen Cable - D655T

and of course the actual screen itself:

Dell 1749 LED 17.3" HD+ WLED Touch Screen LCD Widescreen - J13JX

Having a touch screen myself on my desktop, I can't think of what would be required on the motherboard. Do you know of any different part numbers for anything other than these two parts that differentiate between touch and non-touch?

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Be careful to make sure your existing board  has the jack for the touchscreen cable -- I don't know about this model, but on the newer ones, the systems sold without touchscreens use a board that doesn't have the connector for one (not unlike the situation where systems sold without backlit keyboards lack the jack for the backlight cable).

I don't think the touchscreen version of this model was sold for very long - there may not be that many of them out there.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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That's the thing about this system. I was noticing a lot of connectors for parts it did not come with.

Mine did not come with a back-lit keyboard, however it had the power ribbon slot right next to the normal one so I could add one.

It also didn't come with a 2nd HDD, but it had the SATA port for one and it didn't come with a bluetooth module, but it had the spot to add that too.

Normally when I've opened up laptops it's common to find that optional connectors were not included for parts it didn't come with.

However this laptop seems to be the exception to that rule every time I look.

I wonder if it's possible that they just didn't make enough to justify printing motherboards with different options?


I'm on the phone now with Dell support asking about adding a touch screen to my motherboard, I'll post what they tell me.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Could be - the Studio series were relatively high-end models - unlike the Inspirons, which are built down to a price. 

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Okay, so the motherboard I purchased is the LA-5155P.

According to the technician I spoke with at Dell there is only one motherboard that does not support touch screen (doesn't have the connector) and I did not draw the short straw so I should be good. He also confirmed for me that the motherboard I ordered will fit in the 1745 case as well.

He was so kind as to give me the exact model number for the screen that would have come with my board should I have ordered it touch screen as well which is 79YFH. He was uncertain about whether or not D655T was the correct cable but he was pretty sure it is.

Best part of all, the cable is cheap and I found that screen for under $65.

All in all, not including what I will get back from selling my old motherboard / processor / screen / etc. this has been a great deal.

With $115 for the motherboard / processor / and heatsinks, $80 for screen / cable, $20 for back-lit keyboard.

I only paid less than an hundred bucks for the computer. I looked them up online and you can find broken 1745's cheap.

So say you pay $200 (which would be a LOT) for a broken system, say bad motherboard or screen or both.

Here's what I spent, but what I ended up with:

$100 System itself (though I think it was more like $80)

$65 Motherboard w/ 1GB 5650 Graphics Card

$20 for Heatsinks to go with motherboard

$30 for i5 -540M Processor

$65 for 17.3" touch panel!

$15 Touch Cable

$20 for a back-lit keyboard.

I have 8GB Ram ($40 at Fry's about a year ago) and 2x 1TB HDD's that I purchased on NewEgg on sale for $50 each.

I paid $6 for a bluetooth module and $17 for the TV Card.

Factoring in how easy it would be to duplicate this and how easy it would be to get a broken system without a motherboard / screen / HDD or RAM for $100 or less.

I'll end up with the following system.

i5 - 540M @ 2.53Ghz
8GB PC 1066
2x 1TB HDD
BlueTooth & Good WiFi
TV Tuner
17.3" Multi-Touch Screen!
Back-Lit Keyboard
1GB ATI 5650 Graphics

All for a Total Cost:
$413.00 USD

Now imagine if someone could live with the 4GB RAM and 500GB HDD it came with.

You can't touch this kind of system for this price anywhere, not used or otherwise!

The only things I'd do different or still may.

I purchased that processor by mistake, thinking back I could get an i7 for about twice as much and I would have. I should be able to easily get my money back on that i5 and probably will after I have the system running smooth and know I'm all good. At $70 I could have had this build at an i7 and still only been at $453.00. Also, if the motherboard supports Raid 0 for the SATA ports, I'd like to add a mPCIe 256GB SSD for $150~ and use that for the OS and RAID 0 the 2x 1TB drives.

I will go ahead and post the results of the build when the parts come in and I build it. I'm also gonna make a YouTube video of the upgrade.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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"At $70 I could have had this build at an i7 and still only been at $453.00. Also, if the motherboard supports Raid 0 for the SATA ports, I'd like to add a mPCIe 256GB SSD for $150~ and use that for the OS and RAID 0 the 2x 1TB drives."

The system has no RAID support at all - nor will it take an mSATA drive (yes, mSATA drives are physically the same as mini-PCIe, but the electrical connection is very different, and your system pre-dates mSATA by quite some time.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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I know mPCIe is not the same as mSATA, however I've spent a lot of time looking into this very issue.

I've heard of several SSD's that are supposed to work in WWAN slots that have their own built in SATA controllers.

OCZ, Samsung, Supertalent and I've heard others say they make drives that work in this manor.

http://www.amazon.com/Crucial-256GB-mSATA-Internal-CT256M4SSD3/dp/B0085J17UA/ref=sr_1_1?ie=UTF8&qid=...

Is one example I've read works.

Also, there are mPCIe PATA/IDE interface drives that have their own controller as well like those used in the Dell Mini 9.

Granted, I know it will take some testing however I believe there's a strong chance I can get one to work.

If I can, and can manage to get it to boot, striping the two SATA drives into a raid shouldn't be too hard even without native raid support.

Granted this is all stuff that takes a bit of work to accomplish but I'm always up for a challenge.

After all according to many my entire build is impossible but I've no doubt in a few weeks time I'll be posting soon on a Dell Studio 1945 (1949) with touch screen. I'm very persistent and if it means flashing into the bios or a little soldering then that's what I'll have to do.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Just FYI for those interested in upgrading their Dell Studio 17

I successfully upgraded all but one of my upgrades and the one I didn't was only due to a lack of knowing I needed one part (which I have now ordered).

My budget build pimped Dell Studio upgraded from 1745 to 1749 was a total success.

The motherboard w/ the new heat sinks worked flawlessly.

The only miscalculation I made was I needed to purchase a new "top" or back to the screen. It cost me $44 for a Dell Refurbished designer one which I must admit is a huge upgrade in appearance to the not so nice one that I got it with.

It seems not only is the screen slightly wider, but the new back has a screw hole to install the circuit board for the touch cable to plug into.

I'm confident in absolute success as testing the screen without the new back recognized right away.

My uber inexpensive super laptop is crazy fast and so far is having no issues at all.

After I install the touch screen I'll run some performance tests and 3DMark once the CPU and GPU have settled into their new thermal compound.

I video taped the install as I will with the touch screen.

The edited version along with the specs & 3DMark will be posted on youtube as soon as it's all done.

For those that have a dell Studio 174X and want to upgrade the video all I can tell you is DO IT! It's very worth it and not that expensive, especially compared to purchasing a new laptop.

As for parts interchangeability, I am using a case/accessories to a Studio 1745, Screen/Touch Panel, etc from 1747, and motherboard from 1749.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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For those interested in my experiment.

It worked.

I did need a new screen back, but that's okay since I was going to purchase one anyway.

As for the rest all I can say is it was VERY worth it and I'm extremely impressed with the results.

I'll post a link to the youtube video when it's 100% complete.

Though I've tested it, I need to wait for the new screen back to put that part on.

Graphics card, new processor & motherboard all performing great.

Had to make a text file identifying where the parts came from though, the drivers disk will contain drivers from all 3 models of the 174X.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hey any update or link to video? Im really interested in doing exactly what you did, as I love this laptop and getting it to a i series cpu would be amazing. Thanks!

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hello, pcphantom do you have an email where i can contact you im about to do the same upgrade as you i would need some tips for purchasing the right parts could you help me please.

Regards

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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So how did it go? What is video URL?

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hello HATCH38

i never got contact from PCPHANTOM about it 

so i took and did same upgrade by myself!

it works u only need new motherboard and new heatsinks

if   u have 4650hd gpx on ur old mobo then u can re use the heatsink they are same on 4650hd and 5650hd

the best cpu u can use is i7 640m 2.8ghz thats what i bought

everything fits in no problems i added ssd and this laptop is a beast

View solution in original post

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Hello studio1745upgrade,

I'm finally upgrading my 1745 now. I need to determine if I need the heatsink or not. I currently have the 1745 mobile intel 4 series express chipset. With a core 2 duo processor. I am assuming this isn't the 4650hd gpx and I will need the heatsink but was hoping you can confirm this. Thanks,

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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If you're replacing the processor with another Core 2, you will re-use the heatsink.

If what you're doing is replacing the mainboard with one from a later 1747 or 1749 model -- or replacing an Intel-video board with an AMD or nVidia board - you will need to replace the heatsink; the original won't fit the replacement board.  If you have a 65W adapter, you'll need to replace it with a 90W or higher adapter as well.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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Thanks ejn63.

I will be replacing the 1745 mainboard with a 1749. I will add the heatsink to my list. Will i also need the fan for the heatsink? Also, thanks for the adapter info didn't know about that. ( i think i have a spare lying around somewhere.)

Thanks.

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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The fan should be the same.  That said, if you're buying parts, bear in mind that complete working used 1749 systems start at under $50.00 on EBay --  so keep that in mind if you're planning on buying a board, heatsink, etc. separately.  It  may be cheaper to simply buy a complete system (and have a set of spare parts on hand, or sell the existing system to offset the cost).

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RE: Upgrading Processor in Dell Studio 1745 (Core 2 to i5)

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I thought about buying a the whole system for $50 but i am upgrading the CPU to Intel Core i7-640M 2.80GHz 4M Dual Core G1 (SLBTN), and I need to dissemble to do that anyway. All my parts came in and I was working on it today and realized the GPU needs its own heatsink. I read through the forum again and I must have missed that. Guess i need to wait another week.

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