• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

Socket 754 - Clawhammer or Venice core?

As a general rule the extra 512 cache is worth 200mhz - so you'd be looking at 2.6ghz.

Never been verified, confirmed nor discounted - but that's the generally accepted difference.
 
woodsy, have you tried running the memory at 2T or using a divider or even running the CPU with a lower multiplier to find out if it's the board/memory holding back the overclock rather than the CPU?
 
When i had my old Crucial value PC3200** (1GB) in this rig i could change the timings to 3-3-3-5 1T (usually runs at 2.5-2-2-5 1T) and give the ram 2.7v, give the cpu 1.55v (poxy mobo won't give me any more), drop the multi to 11x and raise the fsb to 254mhz that would give me 2.795ghz prime and memtest stable. Solid as a rock that was. Oh yes, the HT multiplier was dropped from 4x to 3x too otherwise it kept falling over.

** Crucial value ram is supposed to be cheap and nasty stuff but i guess i was lucky. Stock timings at ddr400 is 3-3-3-8 1T with stock voltage of 2.5v. I was lucky enough to get mine down to 2.5-2-2-5 1T with no extra voltage. On top of that it would hit 260mhz @3-3-3-5 1T with 2.7v going through it. My memory does sit under a SI-120 though with a 65cfm 120 mm fan running.

I have'nt had a go with this new PNY stuff i have got. Bargain it was £66 for 2x1GB sticks. Supposed to run at 3-4-4-8 1T but i have already got it down to 2.5-3-2-5 1T with no extra volts. Should be ok for clocking too as they are Samsung UCCC chips. I am waiting to get my watercooling setup next week though before i clock it to death. :D Hoping to get past 2.8ghz. ;)
 
Due to some good luck I'm now the happy owner of a Clawhammer 3700 :)

I installed it in my system a couple of hours ago, heres a screenshot of CPU-Z.

37002qk.jpg


I'd been interested to know whether this is a good or bad revision of the CPU (if there is such a thing?) as I don't know much about the Clawhammers.

Not had time to test it out yet, but the performance of my system doesn't feel any different?
 
Thanks pastymuncher its good to know that I might have some overclocking potential. The only thing limiting me is that I'm only running value type memory (2 x 1GB GeIL Value to be exact).

Other than that I still can't say that my system feels much different. My old chip is a 3200 by the way.
 
Don't be so quick to write off your value ram my friend. ;) I hit 2.795ghz prime and memtest stable using 2x512mb sticks of crucial value ram. Have a look a couple of posts up to see what i did to that. They turned out to be very good clockers with very decent timings too. I have'nt tried clocking the new ram yet as i am waiting to set my WC rig up but they should be good as they use Samsung UCCC chips. :D
 
Roll said:
I'd been interested to know whether this is a good or bad revision of the CPU (if there is such a thing?) as I don't know much about the Clawhammers.
Click to expand...
C0 revision was the old one which was considered to be less of an overclocker and also IIRC it's memory controller was locked at 1T. So yeah you have the newer good revision. :)
 
I've just been reading on a US based forum that theres now a 3400 Venice socket 754 out there. Apparently they are still quite rare and generally only available to system builders at the moment.

I would imagine this one runs at 12 x 200 with a 512K cache?

This might be something I'd like to get my hands on some time in the future to see how it performs :cool:
 
OK here's what a guy using a Venice claims to have got. He reckons this was 100% stable. Pretty impressive if this is right.

venice0wq.jpg
 
I tried my first overclock last night simply by increasing the FSB to 220 which is right on the limit for my value type memory.

This gives 12 x 220 = 2640Mhz. I've ran this for a few hours and it seems completely stable but I'll have to properly test it later. Temperatures are great, the CPU is idling at 39-40 degrees :)
 
Just bought a Turion ML-40 (2.2GHz 1MB cache, 35w TDP) from HK (bought Tueday 9pm, arrived Saturday AM !!!) - installed into Asrock K8NF4G-SATA2 in place of the semperon which was in there and it works fine - need to sort out cooling before pushing it more - but for now its fine at 2.4GHz and BOINC'ing away like mad.

M.
 
You must log in or register to reply here.
Back
Top Bottom