- Jul 4, 2017
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Is there a working BSEL (tape) mod for the Q9500 cpu?
- Thread starter Zatchsmayr
- Start date
The BSEL mod requires the MB to support the higher FSB you're going to. There are a couple reasons you're seeing the Q6600 so much. back in the day it cost 1/2 of what the Q6700 did. SO modding the Q6600 was the answer to the high price of the Q6700. Nowadays the Q6700 is the much better choice.
Your Q9500 is already at the 333/1333fsb so it can't go higher unless your MB supports 400/1600fsb (that's Xeon territory)
Also OEM chipsets almost always have a 95W CPU limit. They won't boot with anything above that. It keeps the CORE2 EXTREMEs out.
The Q6600 is 9x266fsb=2.4GHz. so BSEL= 9x333 for 3.0GHz, same as Q9650 with less cache.
Q6700 is 10x266=2.66GHz so BSEL to 10x333=3.33GHz All Q6700 are the better G0 stepping. Q6600 come B3 or G0. The G0 take a lot less volts.
If you need a little more Voltage to make it stable Throttlestop software can do that for you from Windows.
To answer the question you asked- yes on a workstation MB you can BSEL it to 400fsb for 8.5x400=3.4GHz. I have seen a Dell Optiplex 780 running Q9650 @ 3.6GHz (9x400-3.6GHz) speed at userbenchmark.com. Sometimes chipsets can have hidden support for higher bus speeds. This remains hidden because 95W limit causes nobody to try it. Or they didin't add enough voltage first and it failed for that reason. Who knows maybe you'll get lucky like I did with my Dell Dimension E520. Check the link in my sig.
Your Q9500 is already at the 333/1333fsb so it can't go higher unless your MB supports 400/1600fsb (that's Xeon territory)
Also OEM chipsets almost always have a 95W CPU limit. They won't boot with anything above that. It keeps the CORE2 EXTREMEs out.
The Q6600 is 9x266fsb=2.4GHz. so BSEL= 9x333 for 3.0GHz, same as Q9650 with less cache.
Q6700 is 10x266=2.66GHz so BSEL to 10x333=3.33GHz All Q6700 are the better G0 stepping. Q6600 come B3 or G0. The G0 take a lot less volts.
If you need a little more Voltage to make it stable Throttlestop software can do that for you from Windows.
To answer the question you asked- yes on a workstation MB you can BSEL it to 400fsb for 8.5x400=3.4GHz. I have seen a Dell Optiplex 780 running Q9650 @ 3.6GHz (9x400-3.6GHz) speed at userbenchmark.com. Sometimes chipsets can have hidden support for higher bus speeds. This remains hidden because 95W limit causes nobody to try it. Or they didin't add enough voltage first and it failed for that reason. Who knows maybe you'll get lucky like I did with my Dell Dimension E520. Check the link in my sig.
- Jul 4, 2017
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Thanks, but does this mean software overclocking is out of the window also? If not, what program would you recommend?
The OC I used only works with an unlocked CPU.Only if your MB supports over 95W CPU is that possible. TS can be used to get control of voltage w/o the unlocked CPU.
There are older FSB programs that tweak the FSB, but they don't do Volts SETfsb, and ClokGEN are 2. TS does Volts, but not FSB. You could try to combine them if you like.
I like Throttlestop with a Core2Extreme. The FSBs didn't work for me, but some people had better luck.
There are older FSB programs that tweak the FSB, but they don't do Volts SETfsb, and ClokGEN are 2. TS does Volts, but not FSB. You could try to combine them if you like.
I like Throttlestop with a Core2Extreme. The FSBs didn't work for me, but some people had better luck.
- Jul 4, 2017
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I'm not familiar with HP products. I'm a Dell OC guy. I got my OC trying things until I found what worked. In my case the system supported old Pentium4, and PentiumD CPUs. So I had 130w, and 3.73GHz support already there. This allowed C2X chips, but no BSEL. Since you're running 1333fsb already you could do the Q6700 BSEL with TS to raise the Volts if needed. It might run anyway. You could riase the Volts a little and try the 333 to 400 BSELon the q9550. It "shouldn't" work. But my Dell shouldn't be running 4GHz either. If it works you will probably be the first (like me). All it takes is a little extra code they didn't bother to remove.
Actually there are 2 variations of the tape mod. One uses metal tape to run traces. the other just blocks one pin with electrical tape. here's the old one.
http://www.overclockers.com/intel-lga775-pad-modding/
Q9xxx to 400
http://www.xtremesystems.org/forums/showthread.php?232678-E8xxx-Q9xx0-FSB-1600-pin-mod
More BSEL mods
https://forums.anandtech.com/threads/bsel-pad-pin-mod-775-cpu.2449828/
There are no experts on OCing OEM computers. There is no forum where 50 guys have done this before. There are 50 forums that will telll you it can't be done.
The only reason I suggest trying t he 400FSB mod is I saw a Dell Dimension 780 Q45 chipset running Q9650 @ 3.6GHz, and the only way I know to get there is BSEL 400.
The experts will tell you only the X48 chipset has 400fsb. But X38 already had it. There just weren't any CPUs that needed it yet. So somebody somewhere tried it and it worked. Every expert said O/C ing my E520 wouldn't work. I'm #2 at CPUz with it now.
http://www.overclockers.com/intel-lga775-pad-modding/
Q9xxx to 400
http://www.xtremesystems.org/forums/showthread.php?232678-E8xxx-Q9xx0-FSB-1600-pin-mod
More BSEL mods
https://forums.anandtech.com/threads/bsel-pad-pin-mod-775-cpu.2449828/
There are no experts on OCing OEM computers. There is no forum where 50 guys have done this before. There are 50 forums that will telll you it can't be done.
The only reason I suggest trying t he 400FSB mod is I saw a Dell Dimension 780 Q45 chipset running Q9650 @ 3.6GHz, and the only way I know to get there is BSEL 400.
The experts will tell you only the X48 chipset has 400fsb. But X38 already had it. There just weren't any CPUs that needed it yet. So somebody somewhere tried it and it worked. Every expert said O/C ing my E520 wouldn't work. I'm #2 at CPUz with it now.
I'm still learning too. i found a laptop OC page. Since laptops are almost all locked with no MB options they got pretty creative over there. There is a hardware mod called a "TME unlock". I think this might allow the 400fsb BSEL to work. It requires cutting a pin on the PLL chip. All their posted results are laptops though.
http://forum.notebookreview.com/threads/pll-pinmod-overclocking-methods-and-examples.393027/
144 page thread!
http://forum.notebookreview.com/threads/pll-pinmod-overclocking-methods-and-examples.393027/
144 page thread!
- Jul 4, 2017
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BSEL to the existing bus is the quick and easy. One thing found there was that some of the newer chipsets detect the BSEL and lock the CPU down to the lowest multi. Throttlestop can turn off C states if that happens, Should force it to full speed.
But yes board level mods, and hexadecimal hacks aren't for everyone.
But yes board level mods, and hexadecimal hacks aren't for everyone.
You have to be logged in to see it. The sig. is the signature at the bottom right side of the posts. You asked about software overclocks in the thread, and I was still replying to your original question. There are software overclocks. You need to know the number of your PLL chip to use them.
The PLL controls the FSB speed among many other things. It's usually located by a small metal cannister marked with a number beginning with 14.xx. That's the crystal that generates the frequency it works with. Once you have the number you can enter it into any of the FSB overclocking software that support that chip.
Clockgen, SetFSB , and others. These allow you to raise the FSB in small increments. Unless you can raise the voltage also results will be limited. This is where VID pinmods come in. There are dozens of possible settings for this.
Pages 49-56 here. https://www.intel.com/content/dam/doc/design-guide/voltage-regulator-down-11-0-processor-power-delivery-guide.pdf
And this.http://lexover.at.ua/GlobFAQ/209652.png
You need to search online for a diagram of the voltage you want.
The PLL controls the FSB speed among many other things. It's usually located by a small metal cannister marked with a number beginning with 14.xx. That's the crystal that generates the frequency it works with. Once you have the number you can enter it into any of the FSB overclocking software that support that chip.
Clockgen, SetFSB , and others. These allow you to raise the FSB in small increments. Unless you can raise the voltage also results will be limited. This is where VID pinmods come in. There are dozens of possible settings for this.
Pages 49-56 here. https://www.intel.com/content/dam/doc/design-guide/voltage-regulator-down-11-0-processor-power-delivery-guide.pdf
And this.http://lexover.at.ua/GlobFAQ/209652.png
You need to search online for a diagram of the voltage you want.
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