A64 OC Data

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No, 512K cache socket 939,. The MB cache chips are long gone, unless you buy an fx.
 
Hey! I have a oem 3500+ on an msi neo2 platinum. It's running at 2409 (11x219) @ 1.6 volts. Kingston Hyper x memory is used (ddr400 2-3-2-6) with loose timings for the fsb overclock (2.5-3-3-8) @2.7 volts. It works fantastically, I've very statisfied with the results. Any higher than that and it will flake out. I wish I could hit 2500 but I think I would need faster memory. A 3800+ for free is cool though. Here's the rig:

A64 3500+ @ 2409 (11x219) 1.6volts
MSI K8N neo2 Platinum
1gb Kingston HyperX
Copper Silent boost
Pioneer DVD R/W 108
xfx 6800gt @ ultra (1.4v bios mod, 400/1100)
SB Audigy w/5.1 cambridge soundworks
lian-li v1000
truepower 430volts
 
superfire said:
Any higher than that and it will flake out. I wish I could hit 2500 but I think I would need faster memory.
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try setting the cpu multi to 10, the ram to 166 (5:6) and up the fsb to 250. then the ram will be running more towards it's rated speed, so you can tighten the timings up. it'll also give you a faster cpu clock.
 
blvdKing said:
Please correct me if I am wrong - doesn't AMD state that going above 2.9 volts on the vdimm increase the risk of burning out the memory controller?

I'm not condemning 3.6 vdimm, I'm just wondering.
Click to expand...

According to a person on the DFI forum who has connections to AMD engineers, they do not. The A64 dying phenomenon from overvolting the Vdimm was only on the old Shuttle AN50R boards. The memory controller in the A64 is fed by the Vcore, not the Vdimm. So those AN50R boards probably had some crappy mosfets or something/ With the new DFI UT board out, the OCZ DDR booster has been used way beyond 2.9V for overclocking without any problems.
 
i got this chip, which is a A64 3200, 2000mhz, 512kb, 939, 90nm cpu. max speed seems to be 2250ish...which is utter pants imo! :(

currently running it at 8.5x260, ram @ 1:1, HTT @ around 1040

how far are other 90nm people getting? ive not seen many around??? :confused:
 
consider dropping the ram and ht multi to see if you can get the chip any further with more voltage
 
(cf)Eclipse said:
consider dropping the ram and ht multi to see if you can get the chip any further with more voltage
Click to expand...

ram is ok, ive had it running at 9x250 fine, its that ballistix stuff, and passes memtest @ this speed.

htt is on x4 @ 250 which is 1000 (ie default). I might try lowing this to x3

ive used some programs to see that my board MIGHT not be locking the agp/pci, but then i wouldnt be hitting 250 would i? hmm?

Asus A8V Deluxe, rev 2, 1007bios
 
My 2800+:
Chaintech VNF3-250
9x255HTT = ~2300
Memory at 133 (3:2)
HTT Ratio x3
2x512 OCZ PC3200 @ 341MHz 2-2-2-5 1T
Swiftech MCX6400V with Vantec Stealth 80mm (mmm 27CFM @ 21dba goodness)
vCore: 1.55v vDimm: 2.6
Temps: ~63*c under load average
43Hrs Prime95 stable.
 
KevC said:
2x512 OCZ PC3200 @ 341MHz 2-2-2-5 1T
vDimm: 2.6
Click to expand...

you must mean 170mhz, not 341 :D
btw, your ocz should be able to run with a 5:6 divider without having to slow down your timings any, just put the voltage up some
 
(cf)Eclipse said:
you must mean 170mhz, not 341 :D
btw, your ocz should be able to run with a 5:6 divider without having to slow down your timings any, just put the voltage up some
Click to expand...

Hehe... I was considering either putting 170 or 341. I guess it's the same as putting 200 or 400 :D Anyway .... I'll try 5:6 ... but it didn't like it before. Thanks!
 
Alright guys im ganna add in my OC i just got tonight. I do have some questions so maybe you guys can help me out. For now ill just present my data.

MSI K8N NEO2 (bios 1.3)
A64 3200+ 90nm
2x512 Mushkin Level 1
XP-90 with Panaflo 92mm (forgot which one but its a low flow)

CPU: 10x240
Ram: 200mhz, 2-3-2-6, 2.7v (using 5/6 divider to get this value)
HTT: 4x240

Now my question is the cpu voltage. I have the VID set to 1.55v and then used the increase option of 5%. So i assume that would make it around 1.63v? Bios and corecenter reports vcore is at 1.5v. I dont know whats up, but id like to try for 2.5ghz tomarrow. Ill prime the system tonight and edit this post later.
 
DaveX said:
2.6-2.7GHz on air is what I've seen mostly
Click to expand...

ive only seen them sort of clocks with Phasechange?

seems these 2.7 ghz figures are getting mixed up......first its Phase change, then top end water, then by the 10th person to hear it its stock cooling :p ;)
 
Anandtech got their 3000+ to 2.6+ on air at 1.5v.... Its true though that I havent heard of anyone getting higher than that, on air or water. But I did swee one guy get to 10x300 on his 3500 90nm with phase change... That is awesome.
 
HybridHB said:
Now my question is the cpu voltage. I have the VID set to 1.55v and then used the increase option of 5%. So i assume that would make it around 1.63v? Bios and corecenter reports vcore is at 1.5v. I dont know whats up, but id like to try for 2.5ghz tomarrow. Ill prime the system tonight and edit this post later.
Click to expand...
1.5v in the bios normally equates to 1.4v to the chip with the winchesters. so 1.55 is 1.45 *1.05 = 1.52v, and the msi boards tend to undervolt a bit, so 1.5v it is


stelleg151 said:
Anandtech got their 3000+ to 2.6+ on air at 1.5v.... Its true though that I havent heard of anyone getting higher than that, on air or water. But I did swee one guy get to 10x300 on his 3500 90nm with phase change... That is awesome.
Click to expand...
3ghz is impressive, but nothing compared to what some people get out of the fx-53
http://www.xtremesystems.org/forums/showthread.php?t=42687
 
Overlag said:
ive only seen them sort of clocks with Phasechange?

seems these 2.7 ghz figures are getting mixed up......first its Phase change, then top end water, then by the 10th person to hear it its stock cooling :p ;)
Click to expand...

I am not talking about OnePageBook's oc to 3GHz using his Vapochill LS ;)

Anandtech got their 90nm chips to about 2.65GHz :)
 
(cf)Eclipse said:
1.5v in the bios normally equates to 1.4v to the chip with the winchesters. so 1.55 is 1.45 *1.05 = 1.52v, and the msi boards tend to undervolt a bit, so 1.5v it is
Click to expand...

That makes sense, thanks. I was kind of bummed out it takes 1.63v on my winchester to acheive 2.4ghz, lol.
 
system2.jpg


A64 3000+ s939
2628 mHz (9x292) @ 1.65v
38 idle, 53 load w/ 22 case temp
Coolermaster Hyper6 w/ Thermaltake silentcat fan

MSI K8N Neo2 Platinum
1 GB (2x512) PC3200 Kingston HyperX
Geforce 6800GT

My RAM is holding back performance a bit. Stuff just won't o/c much, even with relaxed timings. I jumped on a deal in the Deals forum where these sticks were $89. Turns out they must have been sitting in the warehouse a while, because they were manufactured in week 37 of 2003. I have to run it at 193 mHz to keep this clock speed. With better RAM, this rig would be really tight! Temps may be a bit concerning to some, but not for me. They would be a lot better if I swapped out the silent fan. At these settings, prime95 crashed after execution/test 7, but this thing has been rock solid in everything else, so I'll probably keep it at these speeds. I really skimped on the power supply; powmax 480 from Newegg at twenty-some-odd dollars, so a better one may help as well.

All in all I'm pleased, though.
 
I just got the rig setup that is in my sig. Where should I start? I went ahead and updated the bios to 1.3 The last thing I overclocked was a t-bird years ago, where you just had to change the FSB. With this thing, there's alot of options I know nothing about. Is there some sort of FAQ for the new AMD's on overclocking? According to MSI corecenter (which seems high) with bios 1.3 I am running at stock speeds 40-41C at 1.44vcore. I've got 12.50 on the 12v rail, 3.46 on the 3v rail. I'm running a Fortron 530w PSU. Where should I start at? Should I try and overclock from the bios or from corecenter?

EDIT, CPU-Z shows my ram timings at 3 3 2 8 12 16 on the memory tab. On the SPD tab in the timing table it shows me at 3 4 3 10 Where should I start at?
 
EmptyWallet said:
I just got the rig setup that is in my sig. Where should I start? I went ahead and updated the bios to 1.3 The last thing I overclocked was a t-bird years ago, where you just had to change the FSB. With this thing, there's alot of options I know nothing about. Is there some sort of FAQ for the new AMD's on overclocking? According to MSI corecenter (which seems high) with bios 1.3 I am running at stock speeds 40-41C at 1.44vcore. I've got 12.50 on the 12v rail, 3.46 on the 3v rail. I'm running a Fortron 530w PSU. Where should I start at? Should I try and overclock from the bios or from corecenter?

EDIT, CPU-Z shows my ram timings at 3 3 2 8 12 16 on the memory tab. On the SPD tab in the timing table it shows me at 3 4 3 10 Where should I start at?
Click to expand...

This is an A64 OC Data thread, please donot post thread "how to O/C questions" here .. Create a new thread under AMD CPU's or O/C and cooling section

thanks.
 
hope this is still on topic.. forgive me if it isnt

Athlon64 3000+ @2150 undervolted to 1.4v
msi k8t-neo fisr. Corsair Pro memory 2.5-3-3-6

How much more do you think I can push this? so far rock solid.

Thanks
Doctor X
 
probably a lot further considering that you have it undervolted right now. it should do 2400mhz with 1.55volts, though i can't vouch for prime stability there
 
This is what I don't understand about O/C AMD's. I've been a Intel guy forever and just recently switched to an AMD system... I've tried running the higher fsb's and have yet to beat my current set up that the tech guy from Corsair suggested... I'm at work and I'm not sitting in front of my puter... So off the top of my head these are my settings..

My system:
Asus A8V Deluxe
Athlon 64 3500+
TwinX512-3200C2PT Corsair 2.5-3-3-6 1T (60mm Stealth over the memory for cooling)
2 Hatachi 80gig SATA Raid 0
X800pro --> X800XT PE
Sblive Plat 5.1

Bios setting are:
250 x 10x, 1.57v core (32C idle and 48C Load) after redoing the AC5 Had it on to thick before and my temps were 38C - 42C idle and 58C+ load
Mem lock at 2:1 ratio (DDR400) (250 x 10x = memory running at 250mhz as suggested by tech) so my goal is to keep the memory at 250mhz

3dmark05 http://service.futuremark.com/compare?3dm05=144061 (vid card oc a bit also)
Aquamark score: High 72000's and when I go to 254 x 10x 1.6ish I'm over 73000...
I know these are video tests but it also gives me an idea on the cpu...

Now if I try different set ups in the bios with running the higher fsb and lower multiplier I don't even come close to those score with different memory setting 5:3 and so on... I now I've ran 280 with the lower multipier (8.5x - 9x) without a problem.

So in fact getting your memory up to the right speed helps out the most instead of worrying about getting the higher fsb speed... Am I out there or am I some what in the ballpark?
 
first of all, you must mean a 1:1 ratio for the ram
and latency is very important for amd systems. keep the timings tight for better performance. if you can kick up that htt speed a little bit without changing anything else but voltages, it should do pretty well.
 
I'm going to have to wait to get home to be able to give you more info... But I know I have the mem lock on and the CPU to Memory ratio I know is set to 2:1 (DDR400)... Like i said I'll get you some screen shots of cpu-z... I'm new to AMD and I'm still trying to figure out what I'm doing..
 
If i was presented with a choice to bump the memory up to DDR500 (as opposed to 400) and raise the latencies to 3-3-3-X, I wouldn't do it. However, if I could do the same thing, only keeping my latencies at 2-2-2, well then it's a no-brainer :)
 
BioVader said:
...the CPU to Memory ratio I know is set to 2:1 (DDR400)...
Click to expand...
ddr400 is definitly a 1:1 ratio cause the default htt is 200mhz, and default ddr400 is 200mhz. so therefor, 200:200 = 1:1
and don't kick the timings up too high in search of higher memory speeds. just tweak based from what the guy at corsair told you, and you should be set.
 
cpuz_1.jpg
cpuz_2.jpg


Seems like that's the highest I can go keeping it stable at 1:1 with these timings.

Overnight prime95 stable.

Seems like my CPU maxes out at 2.4 - 2.5 anyways with a divider running. So 2.3 at 1:1 is fine with me.
 
OCto2480.JPG


Here's my modest overclock. It doesn't POST at all at 249, and BSODs frequently at 250, but is quite stable at 248. Weird, eh? I could probably go higher than 250, even stable, but my stupid board undervolts.
 
with a Gigabyte K8NSPro
and some Kingston HyperX DDR500

now I have 9x270 running 1:1 on the ram woot!

2.43 Ghz out of a 2800+ at 1.55 volts - gotta love a cheapo killer system :lol
 
Prime95 stable limit is 2547 (283 x 9), with memory at 1:1 (2.5-4-3-10).
Voltages at 1.49 on CPU, 2.85 on Memory.
I can get it running prime95 stable at 315 FSB, but with the dividers and multipliers available to me, I can't get performance on par with this. If I can just get my MoBo to run at 333 FSB, I think I might get somewhere. I'm going to stick passive heatsinks on every flat, non-conducitve surface on the motherboard, and see if I get anywhere.

I can run 3dMark2005 at 290 FSB, same timings, but Prime crashes after <1 minute.


Hardware:
MSI K8N Neo2 Platinum
A64 3000+ (939 pin, 90nm)
1 GB OCZ PC3200 platinum Rev 2
BFG 6800 GT OC 425/1200
Thermaltake Silent Boost (POS, being replaced SOON).
Tagan 480-UO1
Hard drives and stuff too!
 
hey I'm back.. Man did I pooch my puter last night... For some reason in my memory settings I have it set to 2:1 DDR400 which it 1:1 somehow.. The next step down it 5:3 DDR333 and so on down to 1:1 DDR200... Anyhow I went back a read the e-mail the tech guy sent me (post it later) and figured I could puch my settings up a bit...

Weeelllll... I set the HTT to 270x9.5 and ran Aqua... ran fine.. The I set it to 272x9.5 and blue screen in aqua and when I rebooted I fot an error saying I was missing systems file..

Anyone else have a problem like that? I figured something got pooched with the raid 0.. So when I formated I ditched the raid and went back to normal.

I was able to run 260x10... 3dmark05 ran but was the textures were all going black and stuff...
 
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