A-64 oc difficulty

[miketheidiot]

I've been running my winchestor 3200 at 2.5 ghz and 1.45 volts for a few months now. it is stable at 1.45 volts up to about 2.56 ghz, but i had never tried pushing it upwards with more voltage due to heat (pushing 60c with prime95). I upgraded to a zalman HSF this weekend (less noise) and noticed that it was also running 10-15c cooler, so i decided to try to push it further.

NF3 epox 9nda3
2x512 ocz 3500 (good to about 245 mhz @ 2.5-3-3-10)
antec Trueblue 480

I drop the htt down to 3x, leave the ram at 166, and up the voltage to 1.5 and push the FSB up to 260. Run prime and fail in under a minute with a hardware error. I go back and up the voltage to 1.55, try prime again at 260 and agian fail in under a minute. I go back into bios, drop my multiplier to 9x and up the fsb to 280, and prime runs for a few hours before I shut it off. yesterday i messed around with it and its not stable at any voltage over 2.58 but stable for hours at 2.55 and 1.4 volts. Is there something i'm missing? Is my chip retarded?

 

[gcxbrian]

what stepping? my cpu suxors liek that to =( i get sux oc of 2.55 on a 3500+

 

[Sexy D]

2.5 and 2.55 aint bad at all guys, some peeps are getting 2.3 lol am lucky hitting 2.4 - 2.5

 

[Interitus]

Mine won't hit 2.4 either. 2.3 is the most reliable I can get. 2.5 is a good OC so I wouldn't sweat it not reaching any higher.

 

[RichUK]

Originally posted by: gcxbrian
what stepping? my cpu suxors liek that to =( i get sux oc of 2.55 on a 3500+

2.55 over the stock 2.2 is very good .. considering the winchester does not always clock to 2.6 anyway no matter what voltage you throw at it, (so lets look at it, 50Mhz off of 2.6 is nothing) ...

 

[imported_Kensai]

Probably the chip just can't take the high speeds.

 

[RichUK]

Originally posted by: miketheidiot
I've been running my winchestor 3200 at 2.5 ghz and 1.45 volts for a few months now. it is stable at 1.45 volts up to about 2.56 ghz, but i had never tried pushing it upwards with more voltage due to heat (pushing 60c with prime95). I upgraded to a zalman HSF this weekend (less noise) and noticed that it was also running 10-15c cooler, so i decided to try to push it further.

NF3 epox 9nda3
2x512 ocz 3500 (good to about 245 mhz @ 2.5-3-3-10)
antec Trueblue 480

I drop the htt down to 3x, leave the ram at 166, and up the voltage to 1.5 and push the FSB up to 260. Run prime and fail in under a minute with a hardware error. I go back and up the voltage to 1.55, try prime again at 260 and agian fail in under a minute. I go back into bios, drop my multiplier to 9x and up the fsb to 280, and prime runs for a few hours before I shut it off. yesterday i messed around with it and its not stable at any voltage over 2.58 but stable for hours at 2.55 and 1.4 volts. Is there something i'm missing? Is my chip retarded?

with regards to your chip 'Winchester', you may have just found your max stable OC at around 2.5... if i was you i would have kept the stock HSF and primed 12 hours on the max OC i could get no matter what the temps are (well if they went over 65/70 degrees for that time maybe not)... then you can figure out whether you needed a new HSF to run at the max OC, if it over heats at those speeds and volts that is...

My chips is 12 hour prime stable at 2.53 see my sig, but at 2.54 it is 50 min stable ... and i have tried all the variables, like trying the 11x, 10x and 9x multi to no affect.. it is only stable running 10x multi ... weired i know, but oh well, atleast it didn't stop at 2.4 or summin ...

 

[slash196]

I max at 2.4.

 

[RichUK]

Originally posted by: slash196
I max at 2.4.

Nice rig shame about the OC tho, but 2.4 ent to bad thats an extra 400Mhz over stock i consider that quite good ... mines 330Mhz over stock which ent to bad either

 

[superkdogg]

Don't forget that 2.4 is fast, even if it isn't the pie in the sky you were going for. Not everybody gets the uber-chip that does 2.7 @ stock voltage on a Via chipset

 

[Lysawy]

max for me @ 2475 anything other wont even get into windows clawhammer core plus memory set at 166mhz

 

[Sexy D]

mine went from 2ghz to 2.4ghz, mmm thats a 3200 to a 3800 for no extra cost...

 

[Insomniak]

Originally posted by: Sexy D
2.5 and 2.55 aint bad at all guys, some peeps are getting 2.3 lol am lucky hitting 2.4 - 2.5

Yeah, what's the problem? Chips aren't guaranteed to OC at all. Mine doesn't like to go much above 2.45Ghz. Consider yourself lucky you've got 2.5 and be happy.

I mean, 2.4 for me is a 600Mhz, 33% OC. I consider that a TON. Most chips are limited to about 10 - 20% over stock speeds, excepting certain amazing cores (P4 Northwood, A64 Winchester, etc.)

 

[imported_whatever]

Originally posted by: RichUK
with regards to your chip 'Winchester', you may have just found your max stable OC at around 2.5... if i was you i would have kept the stock HSF and primed 12 hours on the max OC i could get no matter what the temps are (well if they went over 65/70 degrees for that time maybe not)... then you can figure out whether you needed a new HSF to run at the max OC, if it over heats at those speeds and volts that is...

agreed. I don't know about the Winchesters, as I don't have one, but temperatures can DEFINATELY effect your OC. On my XP/M system, I decided to try running without a CPU fan at the 1.8GHz and 1.35v that I had found 10+ hour p95 stable the day before. Because the temps went from roughly 32C load to roughly 46C load, it failed p95 after only 10 minutes. When I tried it again at that setting with the fan on, it was stable again. So it turned out that it was on the very edge of stability, and the heat pushed it over.

 

[Promethply]

Originally posted by: Kensai
Probably the chip just can't take the high speeds.

Like he said, your CPU's probably reached its max.