GraphicCardProblems :
So I have the Dell's Optiplex 760 Mini Tower and plan on upgrading my PSU.
My budget is ~$30 or 30 euros
My current setup:
250W stock Dell PSU
E8400 processor (I plan to upgrade this to either a modified Xeon E5450 or a c2q, keep that in mind when searching for the PSU)
4GB DDR2 RAM (Might upgrade too)
HD7750 1GB GDDR5
If possible, I'd like the PSU to have a 6+2 pin for graphics. 6-pin only is alright too.
CraphicCardProblems,
To see a list of CPU candidates, there are a couple of ways to check compatibility.
1. Find out the chipset used by the Optiplex 760, which is "Intel Q43 Express Chipset
w/ICH10" and go to the Intel ARK site and search: "Q43 Express Chipset" .this takes you to this page:
http://ark.intel.com/products/36526/Intel-82Q43-Graphics-and-Memory-Controller-Hub
2. On the upper left menu, click on "Compatible Products":
http://ark.intel.com/products/36526/Intel-82Q43-Graphics-and-Memory-Controller-Hub#@compatibility
3. And this displays a list of all the CPU's that can run on the Q43.
4. However, the socket and FSB of these CPU's varies so do another ARK search for: "E8400" as you know that CPU works:
http://ark.intel.com/products/33910/Intel-Core2-Duo-Processor-E8400-6M-Cache-3_00-GHz-1333-MHz-FSB
This shows some important filtering information: The socket is LGA
775, the FSB is1333, and the lithography is 45nm.
5. Then a search for the proposed E5450:
http://ark.intel.com/products/33083/Intel-Xeon-Processor-E5450-12M-Cache-3_00-GHz-1333-MHz-FSB
Right away, it shows a problem with using the E5450 as the Socket is LGA
771.
6. My method of choosing the best performing CPU, GPU, or drive upgrade is to go Passmark and do searches of benchmark results. If I search "Optiplex 760" and filter by rating.
I see there have been 302 systems tested. The highest ratings in each category are:
RatIng: ___ 2242 (Q9650 /Intel 320 160GB SSD / 8GB RAM
CPU: _____ 4602 (Q9650) The highest E8400 score is 3546
2D _______ 604 (GeForce 9300 GE)
3D: ______ 4630 (GTX 760) Also good is at No. 2: 3619 (GTX 750 Ti )
Mem: ____ 1053 (8GB)
Disk: _____ 2661 (Samsung 850 Pro)
This is a useful exercise to plan the overall upgrade. My theory is that these systems are probably running on the original 305W Mini Tower PSU. The E8400 is 65W, the E5450 is 80W and the Q9650 is 95W, a spread of only +30W. The fastest GPU's is the GTX 760 which uses 130W, but the second place 750 Ti uses only 60W. Checking the specifications the Q9650 was sold new in the Optiplex 980, which shares the same case and also has the 305W PSU.
So the answer might be for the best overall cost /performance results to: buy a Q9650, GTX 760 or GTX 750 Ti, and a NOS Optiplex 780 305W PSU:
Genuine DELL MK9GY Optiplex 760 780 Mini Tower 305W Power Supply H305P-02 > sold for $30
http://www.ebay.com/itm/Genuine-DELL-MK9GY-Optiplex-760-780-Mini-Tower-305W-Power-Supply-H305P-02-/251689334213?hash=item3a99da75c5:g:5dcAAOSwU9xUSUhJ
> or possibly a better idea- there are upgrades:
NEW 500W Quiet Replacement power supply for Dell Optiplex 780 760 745 Mini Tower > $55.00
http://www.ebay.com/itm/NEW-500W-Quiet-Replacement-power-supply-for-Dell-Optiplex-780-760-745-Mini-Tower-/272126453740?hash=item3f5c0027ec:g:aCAAAOSwzhVWtl9S
I should say this is an example. I don't anything about this particular product or seller, there are other choices.
Cheers,
BambiBoom
1. HP z420 (2015) > Xeon E5-1660 v2 (6-core @ 3.7 / 4.0GHz) > 32GB DDR3 1866 ECC RAM > Quadro K4200 (4GB) > Intel 730 480GB (9SSDSC2BP480G4R5) > Western Digital Black WD1003FZEX 1TB> M-Audio 192 sound card > 600W PSU> > Windows 7 Professional 64-bit > Logitech z2300 speakers > 2X Dell Ultrasharp U2715H (2560 X 1440)>
[ Passmark Rating = 5064 > CPU= 13989 / 2D= 819 / 3D= 4596 / Mem= 2772 / Disk= 4555] [Cinebench R15 > CPU = 1014 OpenGL= 126.59 FPS] 7.8.15
2. Dell Precision T5500 (2011) (Revised) > 2X Xeon X5680 (6 -core @ 3.33 / 3.6GHz), 48GB DDR3 1333 ECC Reg. > Quadro K2200 (4GB ) > PERC H310 / Samsung 840 250GB / WD RE4 Enterprise 1TB > M-Audio 192 sound card > 875W PSU > Windows 7 Professional 64> HP 2711x (27", 1920 X 1080)
[ Passmark system rating = 3844 / CPU = 15047 / 2D= 662 / 3D= 3500 / Mem= 1785 / Disk= 2649] (12.30.15)