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E4300 Mod


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vnf4ultra



TechSpot Guru

Registered: January 2005
Location: USA
Posts: 2,202
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I modded my e4300 so that it boots automatically at 1066fsb instead of 800fsb. That means my 1.8ghz chip is suddenly a 2.4ghz chip. I also overclocked it a little more, to 2.7ghz (orthos stable). I'm sure the chip can do more, but the motherboard is a crappy board with no pci lock, so that's as much as it can do, but not bad getting 50% more speed "free."
· Date: February 20, 2007 · Views: 44262
· Filesize: 66.1kb · Dimensions: 407 x 409 ·
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Keywords: e4300 pin pad mod bsel 775 core 2 duo fsb overclock

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Julio
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Registered: February 2002
Location: Ecuador
Posts: 4,721
February 21, 2007 06:14 Rating: 10 

Nice stuff!
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swker98
TechSpot Addict

Registered: December 2004
Posts: 1,273
February 22, 2007 15:35 Rating: 9 

nice mod, what did you use to connect the 2 "pins"
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vnf4ultra
TechSpot Guru

Registered: January 2005
Location: USA
Posts: 2,202
February 22, 2007 15:56

I used "rear window defogger repair" paint. It's supposedly really conductive, and seems to work well. I masked off what I didn't want to get covered, and painted it on, and let it dry. It was harder to put on than I expected, those "pins" are tiny, so masking off the pins was time consuming.
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cfitzarl
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Registered: June 2006
Location: Boston, MA
Posts: 2,511
February 23, 2007 00:00 Rating: 10 

Very nice, now only if I could do that and volt mod ...
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howard_hopkinso
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Registered: August 2004
Posts: 25,945
February 23, 2007 05:54 Rating: 10 

Very, very cool and thanks for sharing.



Regards Howard
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Mirob
TechSpot Booster

Registered: July 2005
Location: Out of Spec.
Posts: 817
February 23, 2007 09:45

I was going to to do that to my E4300 but my ASRock 775Dual-VSTA took it to 285 with out the mod. Now I've tried the E4300 in my Asus P5W DH I know it's Vcore that makes it unstable at 290. The dang thing needs 1.55v for 3ghz.
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vnf4ultra
TechSpot Guru

Registered: January 2005
Location: USA
Posts: 2,202
February 24, 2007 18:15

I'm surprised with my e4300, it doesn't seem to need any more than ~1.3v(so far) and runs very cool. Load temps have never gone above 35C(after 13.5hrs or orthos small fft, as measured by core temp). This is with the stock cooler, but using AS5 on the cooler instead of the thermal pad.

http://www.techspot.com/gallery/show...1899&nocache=1
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foozy
TechSpot Member

Registered: December 2006
Location: Oregon, USA
Posts: 267
February 26, 2007 16:07

Cool stuff. Defogger paint > E6600?
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JoeM076
TechSpot Member

Registered: September 2006
Location: New York
Posts: 258
February 28, 2007 21:17

That's pretty awsome that you can customize a processor with rear window defogger paint.
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GameJunkie72792
TechSpot Member

Registered: December 2006
Location: Cocoa, Florida
Posts: 336
June 9, 2007 12:15

so in theory you unlocked an e4300 to run at the speed and fsb of the e6600... awesome could you give detaqailed in structions on which pins to mod? i would love to do this
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vnf4ultra
TechSpot Guru

Registered: January 2005
Location: USA
Posts: 2,202
June 9, 2007 20:02

You can find the needed info in the intel processor design guide datasheet.

http://download.intel.com/design/pro...s/31327804.pdf

Here're the key points.

Three "pins" control the fsb detection, bsel0, bsel1, bsel2.

At the e4300 default, the fsb is 200mhz(800fsb), which means the pins are a L(bsel0), H(bsel1), L(bsel2) signal. By connecting bsel1 to Vss (ground), it makes the bsel1 a "L" signal (L means low voltage signal, H means high voltage signal), resulting in the processor being read as L, L, L, which is the signal for a 266mhz(1066fsb).

Here're the most important pics, NOTE THEY ARE TOP VIEW, reverse the layout when you are actually looking at the pins, not the top of the cpu!

http://img247.imageshack.us/img247/7...5layouttx3.jpg

http://img529.imageshack.us/img529/9...5labelspo6.jpg

http://img149.imageshack.us/img149/9...sbchartqu4.jpg

Basically it means connect the 2nd pin up from the notch to the 5th pin up from the "notch" on the right side of the processor when looking at the bottom(side with "pins") of the chip.



Note: This mod makes it run at the same clock as an e6600, but still has a 2mb cache. Also, note this is really only useful on motherboards that have limited fsb overclocking. A decent board will be able to easily take a e4300 to e6600 speed without this mod.
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fleinz
Newcomer, in training

Registered: June 2007
June 19, 2007 12:41

Can this be done on a new E4320 or even the E 4400 or the E 2160?
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vnf4ultra
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Registered: January 2005
Location: USA
Posts: 2,202
July 4, 2007 19:15

It should also work on the e4400 or e2140/e2160. It won't work on the e6XXX processors, since they're already at 1066fsb, but there is a mod that could bump them up to a 1333 fsb on boards that support 1333. I believe it involves connecting pins g30 to j30.
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Alex2008
Newcomer, in training

Registered: October 2007
October 11, 2007 06:44 Rating: 10 

Thanks for picture. I've got new idea...
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Mirob
TechSpot Booster

Registered: July 2005
Location: Out of Spec.
Posts: 817
December 10, 2007 21:37

I had had my E4300 running stock in a ECS mobo for some time (wife's computer.) I though I give this bsel mod a try. I used a Circuit Writer pen from Radio Shack and it's working just fine at 2.4ghz. Thanks for the pic!
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gpu
Newcomer, in training

Registered: May 2009
Location: England
Posts: 2
May 10, 2009 08:10 Rating: 3 

very good!
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siiix
Newcomer, in training

Registered: April 2007
Location: toronto
Posts: 44
July 13, 2009 14:00

would this work on quad core CPU's as well ?



like q****
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vnf4ultra
TechSpot Guru

Registered: January 2005
Location: USA
Posts: 2,202
July 14, 2009 19:51

It probably would also work on a quad. There are three limiting factors though. First, the motherboard has to be able to support a FSB that is higher than what the cpu is at stock. For example, if you have a 1066fsb quad, then you'd need a board that supports at least 1333fsb. Second, the motherboard has to be compatible with the mod. Not all boards work, and there's no easy way to know other than trying or finding someone else who has already done the mod with that board. Finally, the cpu needs to be able to operate at the new speed dictated by the mod. So if a quad is 2.4ghz at 1066fsb, then it needs to be stable at 3ghz if you do a mod to 1333fsb.
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