Ok, so I got my Epox 8RDA+...

[Kung Lau]

Which memory should I get that works with least hassle with this board?

I will probably oc my XP2400+ a little, but nothing insane.


I see alot of talk about the Corsair XMS memory but geez, it's expensive.

I'd like to get 1gig of decent reliable memory over 512 of the high oc stuff.

I hear Samsung is good. Are there any others? I currently have Crucial PC2100 that
I'll be using until I get new memory. Will the 2100 allow for any overclocking? I guess if it will do 166, it would be great.

If not, is PC2700 what i need to shoot for or PC3200?


Thanks

 

[DAPUNISHER]

2700DDR would be best for 166FSB to ensure stability though some 2100DDR sticks will do it with a lil' voltage bump and relaxed timings. I can't believe I'm going to say this but OCZ has been getting some great press for their 2700 and it's even been said it's underclocked 3200 so might want to have a look *can't believe I just suggested OCZ* but many that use it now are raving about their memory so just make sure the warranty is honored through the reseller as OCZ has been the devil for too long to trust to make things right.

 

[Kung Lau]

Thanks,

So if I don't plan on going past 166, I don't need anything higher than PC2700?

I'm leaning towards the Samsung original from newegg if so.

 

[DAPUNISHER]

Yeah the 2700 will be perfect but the 512mb sticks of original Samsung are OOS@ the egg and have been for a long time. You can get them@[url="http://www.excaliberpc.com/product_info.php?cPath=163_174&products_id=996"]eXcaliberPC[/url] for 67$ a stick and less than 11$ select 3day shipping. It's a 3rd party PCB but it's 6 layer and has a lifetime warranty so you can't go wrong. My Apacer 3200DDR is running 433DDR CAS 2.5 even though it's rated CAS 3 in my P4PE/L and it's Samsung TCC4 chips on a 6 layer so 3rd party can be excellent too!

 

[Kung Lau]

Thanks for the info. I'm catching on this o/c stuff. I haven't done it since the 300A-450 days...

So, if I truly want to up performance, I need to raise the FSB, and lower the default multplier setting right?

And if I wan to raise the FSB of the memory to lets say, 200, I need PC3200 (brandx) ?
I could keep the multiplier at 15 and raise the FSB from 133 to 166 I assume (if everything works) and get 2490mhz.
If I lowered the muliplier to 12 and raised the FSB to 200 (assuming it works again), my 2400mhz would essentially be faster due to the FSB being raised?

According to the cpu id site, my xp2400+ was slated to be an xp2600+ so I don't have high hopes. I will see.
I think I'll stay away from timings for the time being. It's really confusing


XP 2400 AIUHB 02, week 47....anyone else have one of these?

 

[DAPUNISHER]

You have the idea but don't expect 2.49ghz out of it, start off slow say 5mhz increse at a time and keep the CPU core voltage below 1.85v, the memory below 180mhz and limit the vdimm to 2.7v(don't want to risk frying that ram) and leave the timings by SPD as you intend for now till you know wether the ram can handle more mhz. just keep dropping the multiplier as needed to keep from pushing the ram's mhz too high or spring for 3200DDR. Regardless run@100% on the ram to stay in synch.

About the performance question, some things favor more bandwidth ala the higher synched FSB while other things favor CPU clockspeed. The trick is to find the best "blend" of the 2 for performance which is usually established by running various benchmarks (run each 3 times and take the average) Thugsrook's benchmark suite is an excellent one so check his threads for which ones to use. He's a P4 guy but it makes no never mind for benching for performance evaluation

 

[Lacky]

I have two sticks of Twinmos 3200 in my 8RDA+ and it works fine. Less expensive than Corsair. Very Satisfied with this board, but then again I moved up from a K6-2+ so I probably would have been happy with anything.

 

[syberscott]

Originally posted by: Kung Lau

If I lowered the muliplier to 12 and raised the FSB to 200 (assuming it works again), my 2400mhz would essentially be faster due to the FSB being raised?

You missed something here. At 2400Mhz it would be quite faster than the stock 2400+ because the stock 2400+ is only clocked at 2000Mhz (15x133.33).
As far as ram goes I have one gig of Kingston HyperX pc3000. It is priced fairly reasonably. I have it running at a 200 FSB with low timings (see my sig).

 

[Kung Lau]

Originally posted by: syberscott

Originally posted by: Kung Lau

If I lowered the muliplier to 12 and raised the FSB to 200 (assuming it works again), my 2400mhz would essentially be faster due to the FSB being raised?

You missed something here. At 2400Mhz it would be quite faster than the stock 2400+ because the stock 2400+ is only clocked at 2000Mhz (15x133.33).
As far as ram goes I have one gig of Kingston HyperX pc3000. It is priced fairly reasonably. I have it running at a 200 FSB with low timings (see my sig).

Yes, i know about the xp2400 being a 2gig chip. I was wondering if a 12x200fsb (2400mhz) chip was faster than a 15x166fsb(2490mhz) overclocked chip.

Also, I see people mention that a pair of chips may produce an increase in speed over a single stick. Is this true only on the onboard graphics boards or any video?

 

[DAPUNISHER]

There's a very big increase for the graphics performance of the integrated g4mx from DC-DDR but for bandwidth on the SPP 5-10% is about it.