Venice on Socket 754?

[Zap]

Keep dreaming, buddy. A CPU will either be easy to hit certain speeds or impossible. Heck, with all the posts here stating ultra high Opteron overclocks, would it suprise you to learn that there are quite a few people barely able to hit 2.5GHz+ with Opterons? Luck of the draw and if your CPU is nowhere near being able to run at that clock stable, then give up - ain't gonna happen with that chip.

If you really, really, really want to push your particular chip on your particular motherboard and aren't afraid of killing it, then you can probably do a simple "wire trick" to the socket to fool the motherboard into giving you 1.55v as default vcore, and then you can up it from there. OCinside.de has a guide for socket 939 voltage mods but not for socket 754. I just downloaded the tech documents for socket 754 and 939 from AMD's site and will look to see if the pins match up for voltages - unfortunately with a quick glance AMD does not give the handy charts that Intel gives for voltages. If the pins match up, theoretically it should work. Well, not "match up" per say, but have the same number of vcore pins with same naming convention. Then, can use the OCinside.de guide to set vcore, reference the socket 939 tech docs for pin names, transpose to socket 754 with the same pin names.

 

[Zap]

powerbar here's a post just for you.

 

[Assimilator1]

Nice one Zap

 

[homestarmy]

Hey guys, I also have a Sempron 3000+ that goes to 2.7 @ 1.63 (my board has a huge voltage jump) or 2.68 @ 1.58 (by turning CnQ on). I do believe it is CBBWE.

Last night I recieved a new Athlon 64 3000+. It is also a CBBWE and I believe it was labeled as 0602. I was really tired and didn't get home till around 11, so I didn't have a chance to try it out. I'm really hoping for a 2.7 OC at least!

Also, is there a real performance difference between this chip and an equally clocked Athlon 64 on the 939 platform? A 2.0GHz Athlon 64 on 939 would be a 3200+. I understand there is a possibility for dual channel on the RAM, but that shouldn't be reflected in the processor rating.

 

[Brunnis]

Originally posted by: homestarmy
Also, is there a real performance difference between this chip and an equally clocked Athlon 64 on the 939 platform? A 2.0GHz Athlon 64 on 939 would be a 3200+. I understand there is a possibility for dual channel on the RAM, but that shouldn't be reflected in the processor rating.

The speedup from dual channel memory is, naturally, taken into account when assigning the speed rating. A S754 CPU with the same amount of cache anf the same frequency as a S939 CPU will therefore have a lower rating. The difference usually is in the 0% to 10%, depending on app.

 

[Zap]

AMD gives dual channel a 200+MHz boost. The A64 3000+ socket 754 chip is 2.0GHz while the same 2.0GHz on socket 939 is a 3200+.

 

[Assimilator1]

Originally posted by: Brunnis

Originally posted by: homestarmy
Also, is there a real performance difference between this chip and an equally clocked Athlon 64 on the 939 platform? A 2.0GHz Athlon 64 on 939 would be a 3200+. I understand there is a possibility for dual channel on the RAM, but that shouldn't be reflected in the processor rating.

The speedup from dual channel memory is, naturally, taken into account when assigning the speed rating. A S754 CPU with the same amount of cache anf the same frequency as a S939 CPU will therefore have a lower rating. The difference usually is in the 0% to 10%, depending on app.

Yep
Though I'd say 5-10% boost for dual channel RAM is more typical

 

[furballi]

I have the Venice 3000 939 and the Sempron 3100 754. 5% improvement at best with dual channel memory. The 939 system is only 7% faster with twice the onboard cache AND dual channel memory (identical core speed). I can bump the speed of the Sempron 754 by 150MHz and it will be on par with the Venice 939.

 

[BassBomb]

ahah yea my dad has 754 3000+ hammer w/512 DDR400.. while i got (see sig)

 

[homestarmy]

Allright guys, I replaced my Sempron 3000+ @ 2.7 GHz with the Athlon 64 3000+. I figured what the hell and started off with 2.7 GHz on the Athlon, and it worked, no problem!

I also fiddled around with it and was able to get a little more, 2.7xGHz, but my board tops out at 300MHz, so the loss in memory bandwidth wasn't worth it. On my Sempron, I could lose about 27MHz and get CnQ to work properly, but unfortunately that won't work on this processor . It will do this speed ok at 1.58v, but returns errors on prime, and with my funky mobo, the next real step up is 1.63v, and it works fine there. Temps are in the 40's, idling at 41C now in hot FL with AC off and 50C full load Prime95. Using stock FX-60 heatpipe cooler and 120mm quiet thermaltake rear exhaust fan (turned off 120mm intake fan, it was annoying me).

 

[Assimilator1]

2.7 GHz is good

Btw its usually not recommended to use CnQ with o/cing ,I guess because it could knock the vcore too low.

 

[homestarmy]

Right, but in certain circumstances it will work. I plan on dropping my HTT a few MHz at a time and seeing where I can make it work with this chip. I'll sacrafice a few MHz to save power.

 

[rpandis]

I just picked up one of these venice 3000 on newegg for $112 to replace my aging sempron 2800+ (not 64 bit). I won't have it for a few days and I was wondering if anyone had heard of what asus bios for the K8N 754 would work best for this chip? the 1006 bios are the only ones that don't have issues with memory being set to pc2700 instead of pc3200 and I have heard conflicting info on whether or not the venice will run with these bios. ASUS says that you must have the 1008 bios for it to work properly (which have the memory issue), but a few people have said it will run it even with the 1006 revision.

I can't wait to finally have a better CPU for gaming and multi-tasking.

Thanks in advance!

 

[rpandis]

I had it confirmed from the asus boards that the 1008 is the oldest bios I can use with this cpu. Does anyone have any advice on possible settings to run for this particular overclock? With my memory being stuck back to 333 should I increase the multiplier and go at it that way, or just raise the CPU up to 250 with the default 10X?

Thanks!

 

[homestarmy]

Well I am using the K8N-E Deluxe, so that should be pretty much the same board, no?

I run it at 300 x 9 for a stable 2.7GHz at 1.65v (bios setting, reads lower) with a 133 divider.

And I use the newest non-beta BIOS, I don't remember the number, sorry. Is there something better about the older BIOSes?

 

[Assimilator1]

That's a totally different mbrd.Yours is Nfrc 4 his is 3

rpandis
Can't you manually set the RAM to DDR400? ,Im sure you can if you turn off SPD ,in the bios of course.