Using pc2100 ram

[BonerDoner]

How much will it hinder performance for me to keep my old pc2100 ram, and upgrade from my current athlon xp 2000+ tbred to a mobile 2500+ barton? I intend on doing some overclocking on the cpu (of course) and im using a shuttle an-25n ultra nforce 2 ultra mobo. My question is, strictly for gaming, how much will it hurt performance to run the ram asynchronously from the fsb speed?

 

[BlueWeasel]

Well, you'll definately see an improvement from the increased clock speed alone. Also, depending on the quality of the PC2100, you might be able to push the RAM a good bit, maybe even to 166 FSB.

I'd look at it this way, you'll see a speed boost from just the CPU alone. Keep using the PC2100 at OC as best you can, then upgrade to PC3200 when you are able.

 

[Mik3y]

you should be able to hit at least 2.2ghz, even by raising the fsb to 200. *i've done it before*.

 

[BlueWeasel]

Originally posted by: Mik3y
you should be able to hit at least 2.2ghz, even by raising the fsb to 200. *i've done it before*.

With PC2100 Ram?

 

[BonerDoner]

Originally posted by: BlueWeasel

Originally posted by: Mik3y
you should be able to hit at least 2.2ghz, even by raising the fsb to 200. *i've done it before*.

With PC2100 Ram?

Running asynch, the ram shouldnt actually matter, should it?

Also, my cpu is the biggest thing holding me back. I've only got a 2000+tbred, but I also have 1.5 gigs of pc2100 (i get alot of spare parts from working on computers) and a radeon 9800pro.

 

[BlueWeasel]

No, if the RAM is running asynch, (ie, RAM at 133, FSB at 200), then it shouldn't matter. I just wasn't sure what Mik3y was stating.

 

[imported_whatever]

run the ram synch and the bus at 133. it will give better performance than asynch.

 

[BonerDoner]

Originally posted by: whatever
run the ram synch and the bus at 133. it will give better performance than asynch.

with the bus at 133, I wont get any clock speed boost whatsoever, will I?

Edit: I wont be able to overclock much at all, will I?

 

[TheStu]

The mobile has the unlocked multi so you have that advantage... your current chip has a smaller cache (i think, but assume so) and a lower multi... with taht alone you will see a clock boost. In truth the Mobile is set to run at a 133 FSB so you are technically going to be running it stock. When you first put in the chip it will set itself to a 5 multi and 100 MHz FSB... raise the FSB to 133 and the multi to 14 maybe bump the voltage ever so slightly and you will be running at 1.86 GHz... that shoud be a clock inprovement over your TBred. Then you can drop the FSB to 100 again and slowly raise the multi and run Prime95 until you are no longer stable. when you reach that point go back and drop the multi to the floor and start raising the FSB 2-3 MHz at a time running P95 after each one. When P95 fails or you reach a happy point, set the two where-ever you want to get a higher clock speed....

Hope all that helps... if nothing else simply read the OC guide at the beginning of the CPU Thread

 

[Fern]

Originally posted by: BonerDoner

Originally posted by: whatever
run the ram synch and the bus at 133. it will give better performance than asynch.

with the bus at 133, I wont get any clock speed boost whatsoever, will I?

Edit: I wont be able to overclock much at all, will I?

Yeah, if you get the mobile you can use a high multi to get to 3200+ speeds (example 133 x 16.5 =2195). How high do the multi options go in the Shuttle's BIOS?

Also, you s/b able to OC the ram higher than FSB 133.

EDIT: Running ram/cpu asynch is supposed to be a performance "no no" in these AMD systems (OK in Intel and AMD 64bit systems though)

 

[BonerDoner]

Yeah based on what i've tried in the last few days, asynch is real bad. Running the ram at 133mhz while running the fsb at like 154mhz or so, I got about a 300mhz overclock, but after running benchmarks (3dmark05, cs source stresstest, a cs source timedemo i recorded of a 16 player botmatch), the system performed better at stock clock speed with the ram in synch. Crazy stuff. For the multiplier, I dont know off hand, I'll have to restart to find that. I do know that its pretty high. CPU voltage can go really high too. I think with halflife 2 coming out tomorrow, I'm gonna see how that runs, and upgrade from there.

I'm quite new to this forum, so thanks alot for all the help.

 

[dannybin1742]

right now i'm running axp 2500+mobile at 2.4ghz, 133X18

i can't afford 2X512mb pc3200 right now but it seemed ot play doom3 just fine, i almost saw no difference between my 133X18 system and my other system at my lab that is 12X200 with pc3200ram, you do notice it a bit in windows, the pc3200 makes it a bit snappier

 

[BonerDoner]

Windows snapiness means very little to me. But, I just played hl2 for a few hours, and it runs pretty well on my current setup. I may or may not get the 2500+ mobile. Maybe once I get a bit more cash. Thanks for all the help from everyone.

 

[BonerDoner]

Originally posted by: dannybin1742
right now i'm running axp 2500+mobile at 2.4ghz, 133X18

i can't afford 2X512mb pc3200 right now but it seemed ot play doom3 just fine, i almost saw no difference between my 133X18 system and my other system at my lab that is 12X200 with pc3200ram, you do notice it a bit in windows, the pc3200 makes it a bit snappier

Thats really great, I didn't know if such a strange overclock like that would work. Do you have any numbers about framerate differences in doom3?

 

[Toro 45]

Have you even tired running the ram and cpu at 166fsb?, it's really not that big of a stretch. Most good pc2100ram can hit 166.

 

[maluckey]

Exactly!!! I have some generic 2 x 512mb of PC2700 has been running at 210 Mhz FSB at a 1:1 ratio for seven months now at 2-2-2-11 timings. Sure, it needed a voltage bump, but not more than was available in the BIOS.

In the sig below is my NF7-S v2.0 with PC2700 (BH-5 chips). As you can see, depending on the chips in the RAM, you can get alot more than you pay for.

I'd raise the FSB 5 MHZ or so, THEN OC the hell out of the CPU.