How much can I overclock and overclock my Pentium?

[TommyTwommy]

I have a Pentium E6300 whose stock frequency is 2.8GHz.. I overclocked it to 3.4GHz so I lower the bottleneck on my GPU.. Problem with the CPU is that it doesn't have an unlocked multiplier so I had to OC the FSB which also overclocks RAM.. Fortunately I could choose FSB:RAM ratio and I left it on 663MHz by 1:1 ratio... it's usually 666.. I have 2x2GB DDR2 800MHz and 2x512MB 666MHz.. When I overclock the ram to lets say 800MHz I keep gettings BSODS and my applications/games crash... Can I fix that by overvolting the RAM and should I change the CPU voltage from Auto to some certain voltage.. it usually runs on 1.1 on idle and 1.36 on full load (max recommended).. I know overcloclking can't damage my parts but overvolting can  so I am really scared to do it.. Is there anyone who could tell me the exact voltages and clocks I should use.. and tell me if I should overvolt at all. I mean does it really matter if my ram is 500MHz or 700MHz

[Sauron]

Most of that depends on the motherboard you're using, but if you're on an E6300 I'm surprised your mobo even supports fsb changes. I would be content with what you got, 3.4ghz on an locked cpu that defaults at 2.6 is pretty damn good.

 

Just buy this: http://www.ebay.com/itm/INTEL-Core-2-Quad-Q6600-2-4GHz-Quad-Core-LGA-775-CPU-SLACR-Free-Shipping-/401046628582?hash=item5d603de8e6:g:uJkAAOSwNgxWELrt

[WestcoastPCBuilder]

Ram speed doesn't really matter. You can go as high as 1.7v safely on DDR2. Max safe voltage for the Exxx 45nm is roughly 1.45v 24/7 use.

 

You chould be able to get 3.8ghz - 4.0ghz. Perhaps 4.2ghz if you have a good chip and power.

[TommyTwommy]

Most of that depends on the motherboard you're using, but if you're on an E6300 I'm surprised your mobo even supports fsb changes. I would be content with what you got, 3.4ghz on an locked cpu that defaults at 2.6 is pretty damn good.

 

Just buy this: http://www.ebay.com/itm/INTEL-Core-2-Quad-Q6600-2-4GHz-Quad-Core-LGA-775-CPU-SLACR-Free-Shipping-/401046628582?hash=item5d603de8e6:g:uJkAAOSwNgxWELrt

Actually stock is 2.8GHz (There is two different E6300 one is Pentium and one ic Core Duo.. I have the pentium).. My mbo is MSI P45 Neo-F.. and yeah even I'm surprised I can overclock at all.. I currently don't have the money to buy anything .. I just spend 250 dollars on my gpu+psu. EVGA GTX950 and EVGA500W

[Sauron]

Actually stock is 2.8GHz (There is two different E6300 one is Pentium and one ic Core Duo.. I have the pentium).. My mbo is MSI P45 Neo-F.. and yeah even I'm surprised I can overclock at all.. I currently don't have the money to buy anything .. I just spend 250 dollars on my gpu+psu. EVGA GTX950 and EVGA500W

 

I suggest you wait a little until you can afford the 30 bucks for a q6600, the problem with overvolting is that you may kill the motherboard - and that's the last thing you want, right?

[Ricarduh]

  I with same cpu and Motherbord ASUS P5QLD PRO  reach 3.8 mhz and i dont change the values of  volts....

[TommyTwommy]

  I with same cpu and Motherbord ASUS P5QLD PRO  reach 3.8 mhz and i dont change the values of  volts....

You have a better motherboard and a CPU cooler. I'm not sure I can go that far!

[TommyTwommy]

I suggest you wait a little until you can afford the 30 bucks for a q6600, the problem with overvolting is that you may kill the motherboard - and that's the last thing you want, right?

Yes I will buy a new CPU... but not that one but a FX6300.. my build is already half ready.. only thing I miss is the CPU currently I am using this CPU and MBO with all new parts (GPU,PSU,Case).. while my RAM,MBO are waiting for my cpu.. meanwhile I am gaming on ultra settings 1080p thx to overclocks and my baby GTX 950 <3

[harrynowl]

I'd try 343 FSB (should give you 3.6) with 1.4V (more than fine on air, even my little cooler can keep up with a 1.45v e3300).

 

 

You should be able to drop the RAM divider, a FSB of 343 should result in a minimum RAM speed of 685MHz.

 

 

To get 800MHz from the 667MHz kit you might need to loosen the timings to 5-5-5-15 and provide it 2V or so.

[Sauron]

Yes I will buy a new CPU... but not that one but a FX6300.. my build is already half ready.. only thing I miss is the CPU currently I am using this CPU and MBO with all new parts (GPU,PSU,Case).. while my RAM,MBO are waiting for my cpu.. meanwhile I am gaming on ultra settings 1080p thx to overclocks and my baby GTX 950 <3

 

If you're still in time I wouldn't go for a 6300. In most games a core i3 is faster.

[Ricarduh]

You have a better motherboard and a CPU cooler. I'm not sure I can go that far!

yah this cooler i have its a monster.. its big and  very good... your mb its good too...

[TommyTwommy]

I'd try 343 FSB (should give you 3.6) with 1.4V (more than fine on air, even my little cooler can keep up with a 1.45v e3300).

 

 

You should be able to drop the RAM divider, a FSB of 343 should result in a minimum RAM speed of 685MHz.

 

 

To get 800MHz from the 667MHz kit you might need to loosen the timings to 5-5-5-15 and provide it 2V or so.

I have 2 of these..

 

 

And 2 of these... 

 

 

What should I change? BTW what is JEDEC #1, JEDEC #2, JEDEC #3

[harrynowl]

I have 2 of these..

 

 

And 2 of these... 

 

 

What should I change? BTW what is JEDEC #1, JEDEC #2, JEDEC #3

The JEDEC tables are just the set 'generic' standards for DDR2

 

Try running the FSB I suggested (346) and setting the minimum RAM speed your BIOS allows (min RAM is half the effective FSB speed). Then run that with 5-5-5-15 2V

[jimakos234]

i would suggest you getting a xeon 5420/5440/5450 and modding that socket, that would be a huge upgrade for you,  they can hit 3,6-4 ghz for fun

[TommyTwommy]

The JEDEC tables are just the set 'generic' standards for DDR2

 

Try running the FSB I suggested (346) and setting the minimum RAM speed your BIOS allows (min RAM is half the effective FSB speed). Then run that with 5-5-5-15 2V

I put the voltage to 1.980V.. I don't see it tho.. my CPU is now running on 3600MHz! Everything is working fine so far

[harrynowl]

I put the voltage to 1.980V.. I don't see it tho.. my CPU is now running on 3600MHz! Everything is working fine so far

You wont see voltage reported in CPU-Z (For the RAM anyway). You should get more from an E6300 if you push it a bit

[TommyTwommy]

You wont see voltage reported in CPU-Z (For the RAM anyway). You should get more from an E6300 if you push it a bit

Naah. I don't think I need more than 3.6GHz.. for a first time overclock in my life that's more than a lot .. I did stress testing on GPU,RAM and CPU... cpu temperature was stuck on 61/60°C.. Voltage is still jumping at 1.36V just like on stock overclocks...

[harrynowl]

Naah. I don't think I need more than 3.6GHz.. for a first time overclock in my life that's more than a lot .. I did stress testing on GPU,RAM and CPU... cpu temperature was stuck on 61/60°C.. Voltage is still jumping at 1.36V just like on stock overclocks...

It'll be fine, those temps are good enough

[agent_x007]

On LGA 775, "locked multi" isn't really a problem with OC : LINK.
^That was done on CPU almost identical to OP's PDC E6300 (E5400).

As for OC :
I would drop 2x512MB kit, and go with only 2x2GB to 400MHz FSB (ie. 1600MHz FSB/800MHz on RAM).
Then it's just the question of adjusting CPU Multiplier for best Frequency/Temperature by changing CPU Vcore.
With stability problems, U can always increase VTT to 1,3V or RAM voltage.

PS. Don't forget to set timings to 6.6.6.18, because that 800MHz RAM isn't that good.
Good luck.

[LokiFire]

Yo i heard you want to overclock and overclock yourPentium dawg?

[TommyTwommy]

On LGA 775, "locked multi" isn't really a problem with OC : LINK.

^That was done on CPU almost identical to OP's PDC E6300 (E5400).

As for OC :

I would drop 2x512MB kit, and go with only 2x2GB to 400MHz FSB (ie. 1600MHz FSB/800MHz on RAM).

Then it's just the question of adjusting CPU Multiplier for best Frequency/Temperature by changing CPU Vcore.

With stability problems, U can always increase VTT to 1,3V or RAM voltage.

PS. Don't forget to set timings to 6.6.6.18, because that 800MHz RAM isn't that good.

Good luck.

That 1 gig of ram is crucial in games like GTA V, BF4, CoD Ghosts... 

[agent_x007]

GTA V U say... I really don't think so : LINK.
At least, more than 4GB isn't needed with PDC E6xxx CPU.
GPU VRAM is equally important as RAM in this games.