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LGA775 Core2Duo, Core2Quad OVERCLOCKING guide

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guess need to find new LGA 775 Mobo cause i have Pentium Dual Core 2.6 Ghz Not doing anything :P


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Posted · Original PosterOP

guess need to find new LGA 775 Mobo cause i have Pentium Dual Core 2.6 Ghz Not doing anything :P

well. at 4.65ghz I beat an FX8350 @ 5.35ghz in cinebench 11.5 + r15 (single threaded), so lga775 is still worth something :P

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well. at 4.65ghz I beat an FX8350 @ 5.35ghz in cinebench 11.5 + r15 (single threaded), so lga775 is still worth something :P

lol you beat the hell of FX 8350


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Posted · Original PosterOP

overclocking back in the day was not for the weak of heart

I love LGA775. That's where I learned a lot about computers. I had some OEM G31 board (Foxconn G31MX-K) and got my Pentium E2200 from 2.2GHz to 3.1GHz and I felt like some kind of god :P

 

(I was like 12).

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Everyone should read up on BSEL Cpu mods too

Hardcore overclocking for dell / locked motherboards.

Essentially taking 1066mhz fsb to 1333mhz which upped the core mhz.

You had to remove Cpu... and tape over certain pins.

;)


Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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Any reason you listed max safe voltage for C2Q 45nm 1.35V? Max safe voltage is 1.45V.. By the way, especially for this platform, I would first do small fft's in prime95 just to rule out the memory/and whatever again goes along with it and quickly getting an idea if the vcore was enough. Once that's stable, run blend and tweak the VTT/Dram voltage perhaps/NB. There are a few more voltages though like CPU GTL, DRAM GTL, Northbridge as well, on gigabyte boards its called reference, CPU GTL should be 0.67 of your VTT. Gigabyte boards were scaling this automatically like it should be set.

Include the 1:1 cheat and explain why faster RAM can be needed to achieve higher clocks, you explained this already with the FSB. FSB is quad pumped by the way, so a FSB of 333MHz is 1333MHz (can be seen in GPU-z fsb vs rated fsb).

1.40-1.45V for the FSB/NB/SB is quite a lot. I needed like 1.2-1.3V for the NB/SB for 447MHz/900MHz

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Posted · Original PosterOP

Everyone should read up on BSEL Cpu mods too

Hardcore overclocking for dell / locked motherboards.

Essentially taking 1066mhz fsb to 1333mhz which upped the core mhz.

You had to remove Cpu... and tape over certain pins.

;)

I'm fortunate enough to not need to do that. But I could add some references in my guide.

 

I could also do PLL :P

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Posted · Original PosterOP

Any reason you listed max safe voltage for C2Q 45nm 1.35V? Max safe voltage is 1.45V.. By the way, especially for this platform, I would first do small fft's in prime95 just to rule out the memory/and whatever again goes along with it and quickly getting an idea if the vcore was enough. Once that's stable, run blend and tweak the VTT/Dram voltage perhaps/NB. There are a few more voltages though like CPU GTL, DRAM GTL, Northbridge as well, on gigabyte boards its called reference, CPU GTL should be 0.67 of your VTT. Gigabyte boards were scaling this automatically like it should be set.

Include the 1:1 cheat and explain why faster RAM can be needed to achieve higher clocks, you explained this already with the FSB. FSB is quad pumped by the way, so a FSB of 333MHz is 1333MHz (can be seen in GPU-z fsb vs rated fsb).

1.40-1.45V for the FSB/NB/SB is quite a lot. I needed like 1.2-1.3V for the NB/SB for 447MHz/900MHz

I'm working on it, I think I mentioned that the FSB/bus was 1:4, but the DRAM min speed is 1/2 the FSB.

 

I said max recommended voltages, ideal for 24/7 use. From my experience the quads can get pretty toasty pretty quick ;)

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I love LGA775. That's where I learned a lot about computers. I had some OEM G31 board (Foxconn G31MX-K) and got my Pentium E2200 from 2.2GHz to 3.1GHz and I felt like some kind of god :P

 

(I was like 12).

ohh man same here

i oced soo many 775 socket cpus

e7200 QX6700

a QX6800 with a triple rad  for cooling

a Q6600 G0 stepping to 3.2ghz  on a stock cooler

 

 

here is a E7200 on a G31 i OCed

 

i loved Computers a lot during the 775 gen socket !

after that it was meh  because a lack of competition and everything was just moving slowly


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i wanna overclock my Q8300 but idk if it can


"Sulit" (adj.) something that is worth it

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I'm working on it, I think I mentioned that the FSB/bus was 1:4, but the DRAM min speed is 1/2 the FSB.

 

I said max recommended voltages, ideal for 24/7 use. From my experience the quads can get pretty toasty pretty quick ;)

Trying to remember, at 333MHz in a 1:1 ratio RAM would end up to be 667MHz so your requirement that RAM has to be twice at the FSB speed is correct (333*2=667mhz) or just half at the rated FSB on CPU-z (667/1333mhz = 1/2). "Bus speed is 1/4th of the FSB", I assume you meant the bus speed in the bios is 1/4th of the speed thats quad pumped. Tbh leave this out, honestly you're not a lot with this quad pump theory, as long as you know that your ram speed should be twice as fast as the FSB speed in the bios that should do it.

- If I OC the FSB by 67MHz (from 333MHz);

400MHz FSB with 800MHz RAM would be 1:1 a FSB:DRAM ratio

- If I decide to get rid of my DDR2 800MHz stick and get a 1600MHz DDR3 stick and lets say my CPU can do it easily;

400MHz FSB with 1600MHz RAM would be in a 1:2 FSB:DRAM ratio.

Side note: It was advised to lock the PCIe bus to 100.00MHz and the PCI/ to 33MHz or 33.33MHz can't remember it exactly anymore :P 

My experience with core2's is quite different they weren't running hot at all under a NH-D14. I can remember my Q9550 at 3.8GHz with 1.36V, idle 53° and full load after hours apparently 55°. I couldn't do 4GHz at all, so I just went extreme nuts and bumped every voltage out there except SB/GTL's, at 1.45Vcore wasn't even breaking 65° and still not stable :P A friends E7600 I think it was, had a stock clock of 3.06GHz and a multiplier of 11 afaik, got that thing in less than a minute at 3.8GHz. A higher multiplier was awesome, lower FSB clock which has a lot more headroom with slow ram was just epic. He had a NH-D14 as well, wasn't even breaking 45°.. Heres a video of a guy that shows his temps at 4GHz with a Q9550 & nh-d14; youtube.com/watch?v=le5VCSL6trk

Sandy bridge was a different story for me, 4.7GHz and 1.37V gave me like 80° so I just upgraded my nh-d14 to a H100. Found my Q9550 at 3.8GHz using less power than my 2600K, but isn't a surprise when SB pulls a GHz higher clock :P

Btw nice OC, just seen it, that's just a 2500K :/

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well finding LGA 775 Mobo in here is actually hard

my old 775 Mobo is ASUS P5KPL-AM SE And i fucked up

so that mobo is broken


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and for note i don't know that cpu still work or not i already touch that gold (i don't know the name of it )


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anyone know what best socket for LGA 775 ?


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Well, give the guide a read, you'll find it can :P

 

you can probably get 3.3 from that, motherboard willing.

i'm scared that my cpu cooler wouldn't be able to handle the heat at that kind of speed, i know nothing about overclocking but i'm willing to try hehe.

 

my motherboard is an ASUS P5G41C-M LX


"Sulit" (adj.) something that is worth it

i7 8700K / Corsair H100i V2 / Asus Strix Z370-F / G.Skill Trident Z RGB 16GB 3200 / EVGA GTX 1080Ti FTW3 / ASUS ROG SWIFT PG279Q / WD 1TB Blue - Samsung 850 EVO 500GB / Fractal Design Define S / Corsair K70 MX Reds / Logitech G502 / Beyerdynamic DT770 250Ohm / SMSL SD793II AMP/DAC / PCPP

Old Rig

i5 2500k 4.3Ghz | Gigabyte Z68XP-UD3P | Zotac GTX 980 AMP! Extreme | Crucial Ballistix Tactical 16GB 1866MHz

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Posted · Original PosterOP

Trying to remember, at 333MHz in a 1:1 ratio RAM would end up to be 667MHz so your requirement that RAM has to be twice at the FSB speed is correct (333*2=667mhz) or just half at the rated FSB on CPU-z (667/1333mhz = 1/2). "Bus speed is 1/4th of the FSB", I assume you meant the bus speed in the bios is 1/4th of the speed thats quad pumped. Tbh leave this out, honestly you're not a lot with this quad pump theory, as long as you know that your ram speed should be twice as fast as the FSB speed in the bios that should do it.

- If I OC the FSB by 67MHz (from 333MHz);

400MHz FSB with 800MHz RAM would be 1:1 a FSB:DRAM ratio

- If I decide to get rid of my DDR2 800MHz stick and get a 1600MHz DDR3 stick and lets say my CPU can do it easily;

400MHz FSB with 1600MHz RAM would be in a 1:2 FSB:DRAM ratio.

Side note: It was advised to lock the PCIe bus to 100.00MHz and the PCI/ to 33MHz or 33.33MHz can't remember it exactly anymore :P 

My experience with core2's is quite different they weren't running hot at all under a NH-D14. I can remember my Q9550 at 3.8GHz with 1.36V, idle 53° and full load after hours apparently 55°. I couldn't do 4GHz at all, so I just went extreme nuts and bumped every voltage out there except SB/GTL's, at 1.45Vcore wasn't even breaking 65° and still not stable :P A friends E7600 I think it was, had a stock clock of 3.06GHz and a multiplier of 11 afaik, got that thing in less than a minute at 3.8GHz. A higher multiplier was awesome, lower FSB clock which has a lot more headroom with slow ram was just epic. He had a NH-D14 as well, wasn't even breaking 45°.. Heres a video of a guy that shows his temps at 4GHz with a Q9550 & nh-d14; youtube.com/watch?v=le5VCSL6trk

Sandy bridge was a different story for me, 4.7GHz and 1.37V gave me like 80° so I just upgraded my nh-d14 to a H100. Found my Q9550 at 3.8GHz using less power than my 2600K, but isn't a surprise when SB pulls a GHz higher clock :P

Btw nice OC, just seen it, that's just a 2500K :/

I added some stuff about fsb:dram ratios in post. Yea high multi chips were good, but I got my X5450 for £23 :)

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Posted · Original PosterOP

anyone know what best socket for LGA 775 ?

LGA775 is the best LGA775 socket.

 

If you mean motherboard, I find you can't go wrong with the ASUS P5Q or the Gigabyte EP45-UD3P. Both are generally ~£50. I've borrowed a P5Q right now and it's fantastic. In order of preference nForce 680i -> P35 -> 790i -> P45

 

i'm scared that my cpu cooler wouldn't be able to handle the heat at that kind of speed, i know nothing about overclocking but i'm willing to try hehe.

 

my motherboard is an ASUS P5G41C-M LX

What cooler? You can usually get some overclock without adding volts. Looks like a G41 board. see if you have any options in your bios.

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What cooler? You can usually get some overclock without adding volts. Looks like a G41 board. see if you have any options in your bios.

Arctic cooling freezer 7 pro rev 2 LOL

 

alright, ill try to look in the bios now :)


"Sulit" (adj.) something that is worth it

i7 8700K / Corsair H100i V2 / Asus Strix Z370-F / G.Skill Trident Z RGB 16GB 3200 / EVGA GTX 1080Ti FTW3 / ASUS ROG SWIFT PG279Q / WD 1TB Blue - Samsung 850 EVO 500GB / Fractal Design Define S / Corsair K70 MX Reds / Logitech G502 / Beyerdynamic DT770 250Ohm / SMSL SD793II AMP/DAC / PCPP

Old Rig

i5 2500k 4.3Ghz | Gigabyte Z68XP-UD3P | Zotac GTX 980 AMP! Extreme | Crucial Ballistix Tactical 16GB 1866MHz

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LGA775 is the best LGA775 socket.

 

If you mean motherboard, I find you can't go wrong with the ASUS P5Q or the Gigabyte EP45-UD3P. Both are generally ~£50. I've borrowed a P5Q right now and it's fantastic. In order of preference nForce 680i -> P35 -> 790i -> P45

 

What cooler? You can usually get some overclock without adding volts. Looks like a G41 board. see if you have any options in your bios.

I Mean chipset LOL Screw me cause i wrote wrong :P

i only found G31 And G41M

Which one should i pick ?


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