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2 gigabyte FX55 overclocking

spite

Weaksauce
Joined
Jun 25, 2004
Messages
105
I am looking to upgrade to an SLI board and a San Diego core FX55. I want to be able to run my RAM up to around 300mhz, however I also want to run 2 gigabytes of RAM. Should I get 4x512 sticks, or 2x1024 sticks, or what? Help!
 
Well, ram speed aside, 4x512 will force you to run 2T command rate, which is (I think) about 10-20% slower than 1T. 2x1GB will give you 1T, but your timings (look up a ram timings guide if you have no idea) will be higher, as in 3-3-3 (or so) at speeds comparable to 2-2-2 in 512mb. That's how I think it is at least.

Do they make TCCD 1GB sticks? I'm not sure. TCCD would do better timings at high speeds as compared to normal ram.

Why do you want your ram to be able to hit 300mhz? If you want your proccesor to hit 300mhz, you can just use a divider and keep your ram at 200mhz. 300 is pretty high for ram to get.

I would think that high end 1GB sticks (i.e. PC4000/DDR500 or more) are pretty expensive, although I haven't looked at their prices very much. If you want to be guarenteed 300mhz at the timings that are advertised, you will need to look at ddr600/PC4800 ram. Anyone know of a company's ram that can do anything like this that's not advertised to (as the guarenteed versions are always extremely expensive)?
 
Yeah, from what I can see, 4x 512 isnt the way to go. Has anyone tried overclocking on NF4 with 2x1024?
 
spite said:
Yeah, from what I can see, 4x 512 isnt the way to go. Has anyone tried overclocking on NF4 with 2x1024?
Ya, I have, and it was TERRIBLE :mad: I tried that PC4000 1GB sticks (forgot name) and the highest I could go was 225-226FSB range, and that was with 3-4-4-10 timings @ 2T. Using 1T could net me 215-216FSB. I even then bought 2 x1GB sticks of Patriot PC3200 ram, but the timings were 2-3-2-5 1T, So I thought I could net a better OC with this. Well, I did, but I could only get to 231Mhz FSB using 3-4-4-8 1T. I said the HELL with 2 GIGs, and splerged on G.Skill PC4400 2 x512mb sticks. Let me tell you, G.Skill ram is the absoulte best i've ever used. I LOVE TCCD RAM. Right now im @ 288MHz FSB using a 1:1 ratio and using 2.5-3-3-10 1T timings........ I would say go with 1GB right now, and maybe 1year from now when the new M2 socket is released using the DDR2 ram, then upgrade to 2GB's ;)
 
Russ said:
Well, ram speed aside, 4x512 will force you to run 2T command rate, which is (I think) about 10-20% slower than 1T. 2x1GB will give you 1T, but your timings (look up a ram timings guide if you have no idea) will be higher, as in 3-3-3 (or so) at speeds comparable to 2-2-2 in 512mb. That's how I think it is at least.

Do they make TCCD 1GB sticks? I'm not sure. TCCD would do better timings at high speeds as compared to normal ram.

Why do you want your ram to be able to hit 300mhz? If you want your proccesor to hit 300mhz, you can just use a divider and keep your ram at 200mhz. 300 is pretty high for ram to get.

I would think that high end 1GB sticks (i.e. PC4000/DDR500 or more) are pretty expensive, although I haven't looked at their prices very much. If you want to be guarenteed 300mhz at the timings that are advertised, you will need to look at ddr600/PC4800 ram. Anyone know of a company's ram that can do anything like this that's not advertised to (as the guarenteed versions are always extremely expensive)?

I don’t think you lose quite that much at 2T but there is a bit of loss for sure. I totally agree with the “divider” idea though. Drop to a 166 divider and up the FSB. Save a ton on RAM and the difference in performance is negligible.

Some of that “high end” RAM just plain costs way too much and in the end shows almost no difference in performance.

That’s one of the beautiful parts about the 64-bit CPU’s; there are a lot of work-arounds with almost no penalty.
 
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