optiplex 780 mt cpu cooler and cpu overclock

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dirty_console_peasant_plant

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i am upgrading an optiplex 780 for gaming . i tested gmod but it had 100 fps in an empty map on single player and 4 fps in a multiplayer game of murder. half-life 2 runs at 100 fps in a room with enemys , water and particle effects. the pc has a core 2 quad q8400 , a evga gt 710 2gb ddr3 and 4gb ddr3 ram . the youtube channel " randomgaminginhd " overclocked a core 2 quad q6600 with tape https://www.youtube.com/watch?v=5rsFVg3s3G0 , i would like to know if it was posibble to do something similar with my cpu and mother board without causing irreversible damage to my motherboard or cpu . . also , the cpu cooler i have is copper and aluminum and i think was meant for the sff model . i would like to know if anybody makes cpu coolers that would fit the mother board , please comment a link ( hopefully on amazon ) if you find one .
 
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I was looking at pictures of the Opti 780 and it's different than the older Optis, T9303 is the cooler you want. It should bolt in.
The simple tape mod you reffered to requires that you start with a CPU of lower than 1333 fsb. The tape selects 1333fsb on the 1066fsb chip and makes it run faster. But the old 65NM quads are already at the 95W limit so you don't get much there. It works very well with Core2Duo like the E7500 which will go 3.66GHz, or the E7600 which will go 3.82GHz. If your programs don't use 4 core than Core2Duo can actually be better.
http://www.delidded.com/lga-771-775-cpus/?filter=socket-lga-775,series-core-2-quad,series-xeon,fsb-1333,node-45nm&tdp-min=65&tdp-max=95
Q8400s is $16 and gets you a 65W starting point...
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william p

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Sep 22, 2010
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Yes it's possible. No it won't be easy. It will require some trial and error and some commitment. The cooler that bolts in is the D9729. It cooled the old 130W PentiumDs and 3,8GHz Pentium 4s. The better cooler is T9303. the heatpipes are in a different place. if you buy it with the cover you can cut the top1/2" off and put it on your old cover. Or just move the holes.AFC1512DG is a fan upgrade. it replaces the whole fan and holder assy. Velcro and Duct tape will make it work. Throw some heatsinks on the VRM MOSFETs while your at it.
The 780 MB is rated for 95W CPUs and won't boot anything higher. "Q9550s". "Q9505s","Q9400s" are 65W quads. This gets you some headroom to overclock. No C2X chips will boot so there goes quick and "easy".
Your PLL chip is CV184-2APAG it's an IDT chip. Write that down.
The first technique is SetFSB overclocking. You can do a little bit without increasing voltage just to learn to use it . You will need your PLL# for that. Clockgen is another similar program. A $10 donation will buy some tech support. I've seen reports of Q9550s going 3.8GHz on stock Voltage.

To go higher you will need more Voltage." VID pinmod" or Padmodding is the technique. This will require some research and study. There are pins on the CPU that can control Voltage if you send either a high, or low signal to them using metal foil, or insulating paint. You can find images of the setting for various voltages online. It helps to know what Voltage you already have so you can pick a setting the requires only one change. Since very few people have overclocked the 65W CPUs you'll have to find your own settings. But they do overclock very well. You can use your Q8400 to learn on if you want to.
The Q6600, and Q6700 you mentioned are already 95W CPUs. If you tape mod the Q6600 from 266 FSB to 333 fsb you will get 3Ghz. same as Q9650 with smaller cache. the Q6700 will go to 3.33Ghz but will be drawing about 120W at that speed so you will need a Voltmod anyway.
 
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william p

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Sep 22, 2010
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I was looking at pictures of the Opti 780 and it's different than the older Optis, T9303 is the cooler you want. It should bolt in.
The simple tape mod you reffered to requires that you start with a CPU of lower than 1333 fsb. The tape selects 1333fsb on the 1066fsb chip and makes it run faster. But the old 65NM quads are already at the 95W limit so you don't get much there. It works very well with Core2Duo like the E7500 which will go 3.66GHz, or the E7600 which will go 3.82GHz. If your programs don't use 4 core than Core2Duo can actually be better.
http://www.delidded.com/lga-771-775-cpus/?filter=socket-lga-775,series-core-2-quad,series-xeon,fsb-1333,node-45nm&tdp-min=65&tdp-max=95
Q8400s is $16 and gets you a 65W starting point.
http://ark.intel.com/products/42112/Intel-Core2-Quad-Processor-Q8400S-4M-Cache-2_66-GHz-1333-MHz-FSB
Notice the 76*C temperature rating. It's about 14*c. higher than the Q6700.
Here is a GTX1050 that will fit in your computer. No 6pin Pcie cable required. Single slot single fan card that is only as long as the PCIe slot.
https://www.superbiiz.com/detail.php?p=ZT-G1050PA
 
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william p

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Just so you know BTX was designed to run faster clock speeds than ATX. When Intell needed faster motherboards for 3.8GHz Pentium 4s BTX was the solution. The layout gives better VRM cooling, and shorter MB traces to the Chipset. The aftermarket didn't follow and the OEMs gutted the performance of later ones. But with later high efficiency CPUs they can still get up and go. The only way Intel got past the 3.8GHz barrier was to move the chipset onto the CPU itself.
 
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