Dell Optiplex 755 Mini Tower Upgrade

buca08

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I just got an optiplex mini tower from my employer for free. I want to upgrade it as much as possible for gaming. What do you guys suggest? The computer is bone stock. I am looking to use it to run Flight Simulator X decently. It doesn't need to be anything crazy.
 
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Info from Service Tags, what is applicable in selection only, no SS#, just kidding, no personal info located there, so you know.
Configuration as shipped.
Optiplex 755.
PROCESSOR, E8400, 3.0, 6MB, WFD, 65W, C0
DUAL IN-LINE MEMORY MODULE, 1G, 667M, 128X64, 8, 240, 1RX8 - 2 each,
DUAL IN-LINE MEMORY MODULE, 512, 667M, 64X64, 8, 240, 1RX8 - 2 each, so overall, 3 GB RAM
WXPPSP2 - Win XP PRO SP2

J229H
1
KIT, Software, VB32SP1A, Digital Video Disk Drive, Multiple, 5 - DELL WINDOWS VISTA BUSINESS 32-BIT SP1 (J229H) upgrade

HARD DRIVE, 160GB, S2, 7.2K, WESTERN DIGITAL, XL320, it is listed twice, so there is possibility of 2 hard drives
ASSEMBLY, DIGITAL VIDEO DISK DRIVE, 16X, Serial ATA, HALF HEIGHT, PLDS -...
It should be able to take up to a Core 2 Quad Q9650 with the latest BIOS. Has DDR2 Ram 800 and 4 slots so 8GB Max. PSU you can put a lot of them in there. Just make sure the SATA Power for hard drives reach AND that they are 90 Degrees too! If they are not the side will not go back on.

Video card should be able to support most.

Also Now a few things.

1) Stock CPU Heat sink - You CAN NOT change this. This is the one thing you cannot change!

2) Air Flow - If you put a Core 2 Quad in it and a high end graphics card it will got hot pretty quick

3) The Quad would most likely bottle neck high end GPU's. I know my Q9550 even over clocked I didn't get as good frame rates in games like Crysis 3 on my GTX 480. Get much better and smoother game play with my AMD.
 

buca08

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Thank you for the reply. I should have also mentioned I am pretty new to modding computers, but most of what your saying to do seems like it's plug and play. Couple of questions:

1) Power supply unit upgrade to 400+W?
would one like the Corsair builder 430W work?

2) What GPU do you recommend? I think it has to be a single stack to fit.

3) How do you suggest I fix the airflow issue?
 

buca08

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They also have optioned 360 and 760. Not sure if those might be better suited.
 
They are all roughtly the same. Been working with these dells for a looong time. They all use the same case, heat sink, etc. They all have the same Max CPU I think and RAM. You can fit any normal ATX power supply in them. Just make sure the cables are long enough and the ones for the hard drives are 90 degrees or get some adapters for that.

You can use Double height video cards with out issue.

As for the air flow there isn't much you can do. They just have the one fan in the front fan shroud really and the fan in the PSU. You could find a fan that could fit in the back. There are no screw holds for it but since it is a wire mesh like checked pattern you might be able to jimmy rig a fan to fit in there. So one extra fan really. The other thing would be to get a PSU with a nice big fan, leave it on high all the time. It won't help the PSU but it can help get the hot air out.

If you have a machinest/modding buddy maybe put some holes and a fan on the side lol. These are made for gaming. They are office workstations. The upside to these guys is the Optiplex line Rarely failes (at least motherboard wise) and when they do it is because they are 10 years old and just to much wear and tear.

Can't really swap out the front CPU fan either unless you wire the new one to the existing fan connector to the motherboard so that it detects the fan. But yea they are great solid machines but turning them into a gaming machines is a little on the iffy side. low end gaming sure. high end gaming meh.

What is your budge and what kind of graphics card you looking for? Also Can't move these guys to a different case. The mount holes on the motherboard, lack of IO panel (of you really care) plus the mounting holes for the Headsink are all made to prevent people from doing this. Luckly their new stuff isn't like this except for their PSU's in the new Optiplexs.
 

buca08

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All said and done I don't want to be in more than 300-400. So if I don't need to add memory or I don't need a new cpu I can spend more on gpu. Just not sure what the best approach is.
 
Not so easy with video cards here.

THIS POST APPLICABLE TO MT (MINI TOWER) FORM FACTOR ONLY.

Unfortunately no card that is more than 7.5 inches long or 2 slots wide will PHYSICALLY FIT inside the case - it was found that only single bracket video card can fit due to BTX MOBO, where card internals facing upward towards PC internals, not ATX, where dual card design is blocking another PCI slot by facing downward.
If you prefer the card with beefier fan, then the length of the card must not exceed 7.5 inches, otherwise only "skinny" single bracket, single slot cards can physically fit.

Pictures below will prove my point.

View shows no room for dual bracket

01optilexgx620backviewe.jpg


Single bracket only, or you have to cut dual bracket in half

02optiplex745singlebrac.jpg


This is the other way to show my point

h6go.jpg


Here you can clearly see only single place for the bracket

03optiplexgx620insidean.jpg


Visual explanation

04optiplex755mt4.jpg


7.5 inches explained, also shown "obstacles"

05optiplex745singlebrac.jpg


This is the picture of actual "skinny" single slot video card (not sure which model)- perfect, "glove" fit.

06optiplex755mt3edit.jpg


So, choices for video cards are limited.

Without further checking, this card will fit and probably would be bottlenecked by your processor anyway.

MSI N750ti-2GD5TLP GeForce GTX 750 Ti 2GB 128-Bit GDDR5 http://www.newegg.com/Product/Product.aspx?Item=N82E16814127836&ignorebbr=1&cm_re=gtx_750-_-14-127-836-_-Product
This card will work on your existing PSU - it was reported working on Dell 240 watt PSU and yours is stronger!

CPU can be upgraded to QUADS only with copper heatsink, which is proprietary.

Open you side panel and check CPU cooler heatsink, is it Aluminum or Copper, Copper is better.

Aluminum on the left and Copper on the right, which one you have?

8zer.jpg


dsc01651largede3.jpg


By the way, which CPU do you have, it can be Core 2 Duo, Q6600 or Q9***, if it is Q6600 (and they are dirt cheap on eBay), it can be overclocked using tape/conductive ink method from 2.4GHz to 3GHz.

Anything else I can help you with?
 

buca08

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It has an alluminum heatsink and has a Intel Core 2 Duo. Would it be worth buying a new processsor? What about more RAM? Or just stick with a graphics card?
 


It is a dangerous assumption to count upward PC strength according to model numbers only, thinking that the bigger the number, the stronger the options - wrong.

I am listing Optiplexes from Stronger to Weaker
Optiplex 755 look at page 10
Optiplex 760 short pecs manual
Optiplex 360 look at page 6

Optiplex 760 is stronger that 360 due to larger RAM capabilities and a few other things, processors are the same.
Optiplex 755 is the only one of three, which can have QUAD core! Q6600 and Q6700 are officially supported, Q9*** are proven to work by users....

So choose wisely.
 

buca08

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So obviously I will pick 755. New cpu and graphics card. What about RAM increase ?
 
Check which Windows version it has, and is it 64 bit or 32 bit? If 32 bit - you can not have more RAM due to OS limitations, if 64 bit, You can go easy up to 8 GB officially and 12-16GB not officially, I think, but 8 GB is more than enough even for heavy gaming for much stronger systems than yours.
If RAM to be increased, you would have to buy 2x4GB or 4x2GB memory sticks, we will get there once you check your OS.
Easy way to check for OS is to look for a blue sticker attached usually on the side panel, it contains Windows serial windows model.
 


Ah BUT those manuals were also most likely written when it first came out. There are two motherboards for the 760. One that supports the Duos one and one that supports Duos and Quads. A quick search around will tell you which HENCE why I asked if it has a Copper Heat sink or not because from what I have seen even if it doesn't have a Quad Core CPU in it if it supported it they usually came with one anyways.

This is the same for quite a few Dell computers. one of them being the Inspiron 530. Same thing. Two motherboards. One supported Duos one Supports Quads and Duos. I know Wiki isn'ts the greatest source but it even says it.

ALSO I have personally seen a Quad in 760 as well.

The only real difference between the two is the 755 has a Q35 chipset and the other has a Q43.

Also for the RAM on these guys I can't say if it will go above 8GB physically it will take up to 8GB which honestly unless you are doing video editing, running VMs or something 8GB is more than enough for the kind of gaming you will be able to do on this guy. Again depends on the OS, BUT even if it it 32bit, and the PC has a Windows 7 Sticker on it, just get a Dell OEM Disk, which if you can't find I have at least an ISO of it, and just reinstall which I would do in your case anyways.
 


There are two motherboards for the 760. One that supports the Duos one and one that supports Duos and Quads.

You got me here, my apologies for misleading OP.

Here is what I found:

The Optiplex 760MT uses two motherboards - in BOLD are motherboard models:
T674K Non-Quad core CPU motherboard
U562N Quad core CPU motherboard

T674K supports:

38G73 E7400, 2.8GHz, 3MB, WFD, R0, (With VT)
F31F5 E7500, 2.93GHz, 3MB, WFD, R0, (With VT)
06YMG Wolfdale Dual Core E7600, 3.06GHz, 3MB, 65W, R0, (With VT)
H399J Wolfdale Dual Core E8400, 3.0GHz, 6MB, 65W, E0, 1333FSB
D923J Wolfdale Dual Core E8500, 3.16GHz, 6MB, 65W, E0, 1333FSB
N654J Wolfdale Processor E8600, 3.33GHz

U562N supports:

Intel Core2 Quad
Q9550, Q9650, Q9400, Q8300, Q8200, FSB speed 1333 MHz, 4 cores
Intel Core2 Duo
E8600, E8500, E8400, E8300, FSB speed 1333 MHz, 2 cores
E7300, E7200, FSB speed 1066 MHz, 2 cores
E6550, FSB speed 1333 MHz, 2 cores
E4700, FSB speed 800 MHz, 2 cores

Intel Pentium Dual-Core
E2220, E2200, FSB speed 800 MHz, 2 cores

Intel Celeron Dual-Core
E1400, FSB speed 800 MHz, 2 cores

Intel Celeron
440, FSB speed 800 MHz, 1 core

So, the only way to find out is to take 2 Optiplexes and test 760 with CPUZ for motherboard model, if it is U562N, then 760 is better, if it is T674K, then 755 is better.
 

buca08

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Just looked at both tags. It does not say what version it is running on it. The computers arent hooked up either so I cant really log in and look either...
 

buca08

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Both computers have aluminum heatsinks.
 
I am back.
Info from Service Tags, what is applicable in selection only, no SS#, just kidding, no personal info located there, so you know.
Configuration as shipped.
Optiplex 755.
PROCESSOR, E8400, 3.0, 6MB, WFD, 65W, C0
DUAL IN-LINE MEMORY MODULE, 1G, 667M, 128X64, 8, 240, 1RX8 - 2 each,
DUAL IN-LINE MEMORY MODULE, 512, 667M, 64X64, 8, 240, 1RX8 - 2 each, so overall, 3 GB RAM
WXPPSP2 - Win XP PRO SP2

J229H
1
KIT, Software, VB32SP1A, Digital Video Disk Drive, Multiple, 5 - DELL WINDOWS VISTA BUSINESS 32-BIT SP1 (J229H) upgrade

HARD DRIVE, 160GB, S2, 7.2K, WESTERN DIGITAL, XL320, it is listed twice, so there is possibility of 2 hard drives
ASSEMBLY, DIGITAL VIDEO DISK DRIVE, 16X, Serial ATA, HALF HEIGHT, PLDS - which is 16X SATA DVD-ROM Drive DH-16D3S, which is Lite-On:

Read Speed
48x (CD) / 16x (DVD)
Supported Media Formats
CD Extra, CD+G (Karaoke CD), CD-DA (audio), CD-I, CD-ROM, CD-ROM XA, Photo CD, Video CD
Supported Media Types
CD-R, DVD-ROM, DVD-RW, CD-ROM, CD-RW, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-R
AM

TC935
1
KIT, COMPACT DISKETTE, DRIVER, RESOURCE COMPACT DISK (CD), OPTIPLEX, V2

TC935 is actually motherboard model


Optiplex 760

KIT, SOFTWARE, OVERPACK, WXPPSP3, COMPACT DISKETTE W/DOCUMENTATION, ENGLAND/ENGLISH - WinXP PRO SP3

U344C
1
Label, Certificate Of Authenticity, Operating System VB32/64, V#2008

U344C stands for DELL WINDOWS VISTA BUSINESS OEM ACT LICENSE (U344C), is it 32 bit or 64 bit, it is unclear, it seems that originally it was shipped with XP, but there was upgrade to Vista included.

J229H
1
KIT, Software, VB32SP1A, Digital Video Disk Drive, Multiple, 5 - it is clear now DELL WINDOWS VISTA BUSINESS 32-BIT SP1 (J229H)

PROCESSOR, E7300, 2.66, 3MB, WFD, 65W, M0
ASSEMBLY, DVD+/-RW, 16X, Serial ATA, HALF HEIGHT, TOSHIBA SAMSUNG STORAGE TECHNOLOGY - 16X, DVD+/-RW, looks like produced/rebadged by Dell
HARD DRIVE, 80G, S2, 7.2K, 8M, LEAD FREE, SGT-NH
DUAL IN-LINE MEMORY MODULE, 2G, 800M, 256X64, 8, 240, 2RX8 - 2 GB RAM
DUAL IN-LINE MEMORY MODULE, 1GB, 800, 128X64, 8, 240, 1RX8 - 1 GB RAM, so total is 3 GB

P583N
1
Assembly, Chassis, Matrix, Smith, Mini Tower, Pentium M Dothan, 2.0GHZ, 2 MEGB, 533FSB, Active Power Factor Correction, Pwa Integrated, Third Party Maintenance

That what we had been looking for, motherboard, let see, U562N - Motherboard, Smith MT, Smith Bases P583N & P584N, TPM For Dell Optiplex 760

I think case is closed based on documentation provided by Dell, ugh

So, based on service tags provided, Optiplex 760 is the winner.

Now, just to be sure, open 760 and look for a small square label right next to PCIE slot close to CMOS battery

Label looks like this

2164-2678-20130416-6697.jpg


Where 0F373D is motherboard model (for Optiplex 760 SFF)

Location easier to see here

optiplex_c27vv_3_800.jpg


Which is the picture of your motherboard.

Good luck checking.

 
Solution

buca08

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My tag says 0M858N
 

buca08

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Alright. So now that I know I will take the 760 lets finish this upgrade. Is the processor I have ok or should it be replaced? Should I increase RAM up to 4gb? I will pick up this graphics card: MSI N750ti-2GD5TLP GeForce GTX 750 Ti 2GB 128-Bit GDDR5 unless there is a better suggestion.
 
the E7300 for basic stuff is still pretty good. Recently sold a refurbished 780/360 one with a E7300 and the other with a E8500 and 4GB of ram. For basic stuff it is still more than enough power for some light gaming ect. I used an overclocked E4600 for YEARS before I finally upgraded to a Q6600 then to a Q9550 and now i got my AMD FX 8320 (From the E4600 to AMD was about a year and a half. Played most of my games well. Had it OC'ed to 3.0GHZ, but the CPU can be upgraded whenever though, and for windows 7 yea you would want at least 4Gb if you are going to do gaming I would maybe even get 8 if you can afford it.