Overclocking Question

[imported_Mitchell]

I just reciently did an upgrade to my computer. I am using the following components:

AMD FX-55
MSI Neo2 Platinum MB
OCZ EL Duel Channel Platinum Rev.2 (512x2) 2.2.2.5
I have the H20-120-64? (Rev.2) AMD® K8 (Athlon® 64 and Opteron®) CPU Liquid cooling kit - 120MM RADIATOR/FAN watercooling system.
eVga 6800ULTRA AGP

I read some articles here and some reviews about overclocking these components, but I am unable to achieve the speeds, or even close to, the speeds of the reviews here.

I can get the system to run at 200 FSB with a 15x multiplier, which gives me 3.01 speed. But if I lower the multiplier I am unable to get the system to run at a faster FSB, even if I encrease the voltages.

Anyone have tips on how I can achieve 3Ghz with a faster FSB, say 250 Mhz FSB and a 12x multiplier, stabily?

If I increase the FSB do I have to increase the memory latencies?

Thanks. I am probably missing something somewhere, could use someone to just point me in the right direction

http://www.maladomini.com

For some pics of the cooling system. In case you were wanting to look into watercooling. Very easy system to install.

 

[Ronnie]

Change your timings to 2.5-3-3-10. Also what voltages you running your vdimm, chipset, vcore.

 

[imported_Mitchell]

" Change your timings to 2.5-3-3-10. Also what voltages you running your vdimm, chipset, vcore."

I tried several, none seemed to make a difference.

I tried VID at 1.500
Over VID by 10%

I tried it at VID of 1.55, 10%, 7%, 3%

AGP was always locked at 66.

I also tried the vdimm at different voltages all the way up to 1.85.

I never did reduce the memory timings though and this might be the cause of not booting. I will try those settings and see.

I am looking for around 260 FSB 12-13x multiplier. instead of just 200 FSB and 15x multiplier.

 

[imported_NoGodForMe]

I dunno, you may have a "regular" chip as opposed to a "lucky" one.
I have an FX53 (2400 default) and the highest I can go is 2773.
I'm not going to worry about it. Right now, all games fly, and the GPU is what really makes the differance in games.

 

[imported_Mitchell]

" I dunno, you may have a "regular" chip as opposed to a "lucky" one.
I have an FX53 (2400 default) and the highest I can go is 2773.
I'm not going to worry about it. Right now, all games fly, and the GPU is what really makes the differance in games. "

I am pretty sure the chip isn't the issue as I can run that at a 15x multiplier no problem (unless I am missing something and the chip cannot deal with a faster FSB).

I think the memory settings are the issue. Just got to wait till I get home to try reducing them a few ticks.

 

[imported_Computer MAn]

It probably shouldn't be the memory as Rev2's are great overclockers. Really weird about that FSB issue as FX's are cream of the crop chips and usually OC well.

 

[imported_Mitchell]

I read some articles and maybe I was looking in the wrong places. These areticles mention reducing the HT speeds while increasing the FSB.

http://www.xbitlabs.com/articl...sempron-3100-oc_3.html

talks about changing FSB to MemoryClock ratio on NF3-250 socket754 board

73 - Posted on Oct 21, 2004 at 5:36 PM by DaveHull Reply
Wesley,

One thing I've noticed when overclocking the MSI board with the 3000+ A64 (same as in the review) is that you have to lower the Hyper Transport (HT) from x5 to x3 to get the overclock of 290 FSB, giving an HT speed of 870 mhz instead of the stock 1000 mhz. My cpu/board refuses to run at a HT speed of over 1070.

Is this true of the overclock in the article? Will the decreased HT speed negate the performance benefits of the overclock in any practical areas?

Thank you,

Dave
74 - Posted on Oct 23, 2004 at 9:11 AM by Wesley Fink Reply
#73 -
You normally have to drop HT at higher overclocks, to keep the aggregate somewhere in the 1000HT range. Some boards handle higher HT than others. Since x3 HT was used for the 290x9 benchmarks in the review, I think it should be clear that the lower HT ratio does not adversely affect performance as long as the HT is somewhere around 800 or greater. 290x3 is an HT of 870.

4X HT usually stops working around 260 to 275 (1040 to 1100) on most boards that support 1000HT (5X) and you need to drop to x3. As a side note, none of the 1000HT boards we have tested work well at 2x HT.


Seems like that might be a place to look that I didn't think of to check.