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AMD 64 3500 Newcastle OC' (newb)

Last response: in Overclocking
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February 1, 2007 12:06:31 AM

Hi everyone,

I have been killing myself about whether to OC my 3500 or to just pony up the dough for a new processor like a x2 4600, 4800 or the fx60.

My current rig is the 3500 Newcastle aforementioned
7900 gt 256mb
1gb corsair xms twinx
EPOX nforce4 9pna+ SLI

I decided to try and OC the 3500 newcastle to save a few bucks. I also bought a cheap Rosewell cpu cooler (15$ so nothing to special). I put the Rosewell on with Artic silver 5 and was on my way.

I downloaded Prime 95, CPU stability test 5.0, Speedfan, and CPU-z

I got some instructions online and went to work but only achieved a relatively low OC (stock at 2.2 mine topped out at 2.48 or so). The reason I stopped there is that anytime I went higher Prime 95 would find an error in very little time. It was a rounding error and it said it expected to find a value under 4 but it was higher ( i know i should have copied the error)

My settings in BIOS were the HTT mult at 4x, CPU multiplier at 9x, the bus at 275, the ram at 266 ghz. Thats all I remember changing I didnt touch any voltage settings.

Im sorry for the long post but I thought more detail was better then "whats wrong with this"

What can I do to increase the OC'? or If its just the core that dosent OC well (what I have heard)? AND if the chip is just bad should I just upgrade to a x2 or FX?

Thanks
February 1, 2007 12:16:43 AM

I also should have mentioned my temperatures are not good but not horrible as my idle is around 44-45 and 55-57 at full load
February 1, 2007 2:09:00 PM

Anyone?
Related resources
February 1, 2007 2:39:45 PM

Quote:
Hi everyone,

I have been killing myself about whether to OC my 3500 or to just pony up the dough for a new processor like a x2 4600, 4800 or the fx60.

My current rig is the 3500 Newcastle aforementioned
7900 gt 256mb
1gb corsair xms twinx
EPOX nforce4 9pna+ SLI

I decided to try and OC the 3500 newcastle to save a few bucks. I also bought a cheap Rosewell cpu cooler (15$ so nothing to special). I put the Rosewell on with Artic silver 5 and was on my way.

I downloaded Prime 95, CPU stability test 5.0, Speedfan, and CPU-z

I got some instructions online and went to work but only achieved a relatively low OC (stock at 2.2 mine topped out at 2.48 or so). The reason I stopped there is that anytime I went higher Prime 95 would find an error in very little time. It was a rounding error and it said it expected to find a value under 4 but it was higher ( i know i should have copied the error)

My settings in BIOS were the HTT mult at 4x, CPU multiplier at 9x, the bus at 275, the ram at 266 ghz. Thats all I remember changing I didnt touch any voltage settings.

Im sorry for the long post but I thought more detail was better then "whats wrong with this"

What can I do to increase the OC'? or If its just the core that dosent OC well (what I have heard)? AND if the chip is just bad should I just upgrade to a x2 or FX?

Thanks

AMD Newcastle CPU's are 130nm, so expect using a lot of voltage to get anything out of them, and more powerful cooling may be necessary. That being said, it will never be as powerful as a dual-core X2 or FX60.
February 1, 2007 3:29:39 PM

I didnt expect it to get to those levels by any means. When you say increase the voltage what levels should I be increasing it to. I am not sure how much will fry something ect.
February 1, 2007 4:16:46 PM

Thats a good overclock buddy. You nearly have the same system as me. I got a Newcastle Athalon XP 3400+ and I have settled on 2.45 stable. I'm guessing the core is not the best for OCing. Check google and you will see not many people will get higher. Don't bother raising your voltage too much. Mine is set at stock and everthing is fine. I just got myself an Fx-60 too. Tigerdirect.com has a barebones for 399.99 (case, Power Supply, MB, Proc). That thing smokes. If you do alot of mulitasking\gaming I would go for it. I'm sure the unlocked multiplier will put a smile on your face.
February 1, 2007 4:23:10 PM

You need to increase your CPU Voltage (V-Core) to go higher friend.
i don`t know anything about Newcastle CPUs ,but my San Diego 4000+ only worked stable at 2600MHz if i used the 1.425v V-Core. :wink:
February 1, 2007 4:41:25 PM

Did the higher Vcore increase temps alot....at full load i am already at 55-57 so I dont want to go too much higher.

Does anyone know the error I get in Prime 95 means. "expected value was this but found a different value"
February 1, 2007 7:13:27 PM

Quote:
Did the higher Vcore increase temps alot....at full load i am already at 55-57 so I dont want to go too much higher.

Does anyone know the error I get in Prime 95 means. "expected value was this but found a different value"

I run my 3200 on a lot of voltage for 2.8, but it's a totally different core and process. Try 1.5/1.6 to get around 2.60 (where that chip tops out) also, it seems like you might be having Prime 95 errors. Set your HTT multiplier to 3x.
February 1, 2007 10:20:35 PM

So i set the htt mult to x3 and it halted the test in prime 95 with this error

FATAL ERROR: Rounding error expected .05, found .04 (or something like that)

Will a voltage increase change this or is it just the chip
February 2, 2007 12:00:27 AM

Quote:
So i set the htt mult to x3 and it halted the test in prime 95 with this error

FATAL ERROR: Rounding error expected .05, found .04 (or something like that)

Will a voltage increase change this or is it just the chip

you can try increasing the voltage, but it will only be able to do so much.
February 2, 2007 12:22:39 AM

I have the same chip and struggled to get over 2.42ghz (219FSB) without failing in P95, I was pretty new toOC'ing last time I tried though so with some of the help of these guys you should be able to beat that. I think i've read about these at about 2.6
February 2, 2007 12:36:03 AM

I think I am going to be happy with the OC i have going now. I tried a bunch of different settings and advice from others to no better result.

It will at least last me until I can put my band-aid fix on this rig (X2 939 processor and another gig of ram). That will at least bring this rig another yr or two with a x2, 2 gigs, and a 7900gt

Thanks to all who helped out
February 2, 2007 12:51:24 AM

That's the path that I'm looking towards. A second hand 3800 X2 (new ones are pretty costly especially 939) and maybe a x1950 Pro AGP, just to last me until DX10 and vista becomes more mainstream when I will buy a new machine (cpu, mobo, ram, gpu, psu)
February 2, 2007 1:36:13 AM

Quote:
I have the same chip and struggled to get over 2.42ghz (219FSB) without failing in P95, I was pretty new toOC'ing last time I tried though so with some of the help of these guys you should be able to beat that. I think i've read about these at about 2.6

just lots of voltage and cooling are what matters for a hot 130nm chip
!