2.6c OC, MAX P4 Core Voltage? Help please!

[batmang]

I've been overclocking my cpu, messing with random things. Changing the timings, ratios, voltages, etc. I currently have a 2.6c @ 3.03ghz fully stable using Abit IS7-e, SLK-900U, Smartcase Fan, 233fsb, GeiL 3500 Ultra Platinum 2x256, 450w Allied PSU, 1.6vcore, 1.6vagp, 2.8vram, 2-6-3-3 timings, 5:4 ratio, using the game accelerator v13 bios, (from top to bottom) Street Racer, Normal, Auto, Disable, Disable. The highest i could get my cpu into windows in was at 246fsb, 3.2ghz. But the game accelerator settings were (from top to bottom) Auto, Auto, Auto, Disable, Disable. With voltages of 1.6vcore, 1.6vagp, 2.8vram, and memory settings of 5:4 2-6-3-3. Now, ive noticed that with the game accelerator set to auto, auto, auto, disable, disable, i can run a 1.5vcore, 1.5vagp, 2.6vram and boot at 233fsb fully stable. I've seen plenty of Abit IC7 boards with 2.4c's running 3.2ghz+ using voltages lower then im using just to get 3.0ghz. It seems like the 2.4c's oc the best hands down. But i would think that with my setup i could get at least 3.2ghz fully stable, but i cant seem to. I'm wondering what the real bottleneck of my setup is. It cant be my ram cause its 433mhz, It's not even near 433 when I try 250fsb, it would be at 400mhz if it would boot. Ive seen a 2.4c/IC7/Geil 3500 Ultra Plat 2x256/ setup get 3.5ghz fully stable. Doesnt seem to make sense to me. What is the MAX Voltage that would be safe for a P4? And WHY the hell cant I hit 3.2 fully stable with Street Racer on? People are hitting 3.5ghz on 2.4c's with Game Accelerator on without any problems, even with the same ram as me. HELP!

 

[bacillus]

you should not exceed 1.7V for a p4 if you want it to last!

 

[Shimmishim]

i'm not sure but maybe it has to do with the fact that springdale boards can't take advantage of PAT when using the 5:4 or 3:2 dividers..

?

i have no idea... i'm an amd guy switching over to intel

 

[batmang]

I know for sure the game acceleration does make a difference, about 10-20 fps depending on the game. I noticed a 15 fps increase in quake 3 after running timedemos.

 

[iblumberg]

Batmizang,

I think there are lots of P4c CPUs out there that just don't OC all that well, or else there are lots of other variables that folks just haven't nailed down.

I have tried a 2.4c and two different 2.6c CPUs in my DFI PRO875 MB. The best I have been able to get is 3.0G on the 2.4c and 3.12G on one of the 2.6c's, the other wouldn't do over 3.0G. In each case I had to crank the Vcore up to at least 1.6 and in one case 1.65.

I don't understand how folks are getting 3.4G+ on default Vcore, but who knows. Hope this helps a bit.

Ira

 

[batmang]

yeah, that does help. cause now it makes a little more sense to me. I guess I just got unlucky with the chip I got, kinda makes me a little mad cause i could easily use the stock heatsink/fan on a 2.6c to 3.0ghz oc. Bought the slk-900 and a smart case fan, got stuff i ended up not really NEEDing, hell, maybe ill sell the fan/heatsink for $40.

 

[stardust]

Originally posted by: iblumberg
Batmizang,

I think there are lots of P4c CPUs out there that just don't OC all that well, or else there are lots of other variables that folks just haven't nailed down.

I have tried a 2.4c and two different 2.6c CPUs in my DFI PRO875 MB. The best I have been able to get is 3.0G on the 2.4c and 3.12G on one of the 2.6c's, the other wouldn't do over 3.0G. In each case I had to crank the Vcore up to at least 1.6 and in one case 1.65.

I don't understand how folks are getting 3.4G+ on default Vcore, but who knows. Hope this helps a bit.

Ira

BAD LUCK | GOODLUCK

 

[bjc112]

Originally posted by: batmizang
yeah, that does help. cause now it makes a little more sense to me. I guess I just got unlucky with the chip I got, kinda makes me a little mad cause i could easily use the stock heatsink/fan on a 2.6c to 3.0ghz oc. Bought the slk-900 and a smart case fan, got stuff i ended up not really NEEDing, hell, maybe ill sell the fan/heatsink for $40.

Why not try and sell off your 2.6C in the FS/FT forum? You can get about 90-95 % of your money back and try your luck again with another 2.6c



What the hell is wrong with 3ghz?

 

[GtPrOjEcTX]

Originally posted by: bjc112
What the hell is wrong with 3ghz?

not as good as 3.5Ghz?

 

[Shimmishim]

Originally posted by: GtPrOjEcTX

Originally posted by: bjc112
What the hell is wrong with 3ghz?

not as good as 3.5Ghz?

hehehe



agreed....

i'm shootin' for 3.5 ghz with my 2.4C

i can't believe the luck i'm having so far... 12 x 292 = 3500 @ 1.6 volts actual

i'm a happy camper considering i had to through about 10 tbred 1700+'s to find one that cound do 2.5 ghz but that was with 1.86 vcore argh...

 

[stardust]

whats game accelerator?!?! a new game tweaked bios?!

 

[LastRide]

Your are going to have a tough time trying to run Street Racer at higher overclocks.There are a lot of people that can't run Street Racer including myself.Seems like certain ram runs better with the GA options.Here is a tip.Disable command per clock in GA .You can also try and diable the one above command per clock which supposedly helps and put the refresh cycle on normal in GA.The big one is to disable CPC command per clock if you want to leave the rest on auto.You can run street racer but you will have to back down your FSB's and it will work and you can leave all the GA options on auto.

 

[Mickey21]

Originally posted by: stardust
whats game accelerator?!?! a new game tweaked bios?!

Yes... you will find game accelerator options in ABIT motherboard, not sure if anyone else has implemented anything similiar... I may be mistaken...
Essentially this teaking will speed up performance in most games by sometimes 15-20FPS.

Taken From ABIT WEBSITE...
Recently, ABIT Engineers have created a BIOS for the IS7-G that enhances the performance of the 865PE chipset, making the ABIT IS7 the fastest motherboard to date. Even at stock speeds, the IS7 series is 17% faster than all other Springdale boards. The IC7 Series also takes advantage of ABIT's Game Accelerator making the ABIT IS7 / IC7 series the gamer's choice for more frags, better gameplay and mind-bending graphic performance.

To review this groundbreaking BIOS, ViperLair recently ran it through the paces:
"If you've read a few ABIT IC7 and IS7 reviews the past few weeks, you'll probably know that the much cheaper Springdale based IS7 has been performing on par with the Canterwood based IS7. Considering the price difference between the two boards, the IS7 appears to be the smarter choice. How can that be, given that the Canterwood has Intel's Performance Acceleration Technology (PAT), but the Springdale does not? The answer can be found in the new "Game Accelerator" BIOS that ABIT released for the IS7 a few weeks ago."

Users have a choice between "Auto", "Turbo", "Street racer" and "F1" so they can optimize their system performance according to their memory modules. The IC7-G will also come equipped with these new settings. With each setting, users can push their overall PC performance further and further. Those who select F1 in the BIOS settings are looking to get Formula 1 performance from their desktop PC, and so should be prepared to unleash raw computing power.

"The way the optimizations work is exactly as described above. The Game Accelerator tweaks your memory, and as we already know, tweaked memory improves overall system performance. Basically, you'll want to run your CPU and memory synchronous with each other; i.e., 1:1. Depending on how solid your ram is, either you can the timings before hand, or set it to SPD. Afterwords, you set your ram to one of the four settings, Auto, Turbo, Street Racer or F1. I should point out that Street Racer and F1 may not work on all memory modules. I had a lot of difficulty getting our Corsair TWINX to behave at F1, and it only worked when I relaxed the timings to 2.5-3-3-7, which ended up performing close to 2-3-3-6 at Street Racer settings."

 

[stardust]

thnks!

boohoo i have ASUS, but i still like my performance!