2500+ Overclocking

[Fides]

Sorry,

Im using one 512Mb 333mhz Micron chip and another 256Mb chip at the same frequency in another slot (of unknown brand)

 

[myocardia]

Originally posted by: Fides
Sorry,

Im using one 512Mb 333mhz Micron chip and another 256Mb chip at the same frequency in another slot (of unknown brand)

Fides, if that ram will ever reach 400mhz DDR, you're going to have to jack the vdimm (ram voltage) up alot higher, probably either to 2.8 or 3.0v. I would suggest just spending a little money on some cheap PC3200(400mhz) ram. They can be had on newegg.com for around $45 per 256mb stick.

 

[Fides]

How would getting new ram help me to overclock/increase usb/help performance? and why do i need it to reach 400 Mhz?

 

[Fides]

How would getting new ram help me to overclock/increase usb/help performance? and why do i need it to reach 400 Mhz?

 

[myocardia]

Originally posted by: Fides
How would getting new ram help me to overclock/increase usb/help performance? and why do i need it to reach 400 Mhz?

Fides, it's like this: you have a few choices concerning overclocking your Barton. #1- You can not OC it, and keep the memory you have. #2- You can raise the voltage (called vdimm) on the ram you have now, and see how high you can raise the fsb. #3- You can buy some PC3200 ram, and more than likely be able to reach 2.2ghz, which some people have started calling "XP 3200". #4- You can overclock it by just raising the multiplier, and keeping your current ram, but you won't get much of a performance increase, compared to raising your fsb. #5- You can sell me that unlocked 2500 cheap, and I'll show you what can be done with it. The choice is up to you, but I'm partial to #5.

 

[SparkyJJO]

Originally posted by: Fides
How would getting new ram help me to overclock/increase usb/help performance? and why do i need it to reach 400 Mhz?

Your RAM runs at your FSB that the cpu is set to. If you have the cpu FSB near 400, the RAM needs to be able to do 400 MHz too.

I have overclocked some on a VIA chipset - only the nForce2 has AGP and PCI locks. When I got too high the PCI and AGP went too far out of specs and crashed. So it could be two things, mobo and RAM.

Just my experience

 

[Fides]

ok.. I tihnk i get it now.

How do I know I'm not overheating my ram though when I increase the voltage.

Also.. can anyone provide a technical explination on how increasing frequency increases temperature?

Thanks for the help.

 

[fleflikr]

as to original thread.......i would look more towards stabilizing your ram if you are getting a blue screen

 

[Spike]

ok, I am gonna jump in here with a question of my own which is sorta related. I have a Abit NF7-s rev 2 running with my 2500+ and some giel DDR400 (512mb one stick). I changed the fsb from 333 to 400 right of but left everything else alone inlcuding agp and voltage. I have been up and running since the day after christmas, so like 2 weeks and have had no problems what-so-ever.

My concern is this... for the first week my temps were consistently very low, one time I was running at less than 30c idle. Lately my temps have been back up to mid 40c and even pushed to 52c after 4 hours of gaming. The outside temps have gone up alot, but my case temp (according to hardware doctor) is usually 20c or more less than the cpu. this seemes a bit odd to me. I know that even at 52, it is not bad, I just wonder what the sudden increase was. I checked and all fans are working well (4 80 mm case, 2 80mm on psu, and 1 80mm on Alpha PAL8045 hsf) Anyway, does anyone have a suggestion?

-spike

oh, and Fides, a good PSU does make a difference, but you don't need a 4 million watt one to do it. I am running 3 hdd, a burner, my oc'ed processor, a Radeon 9600 pro, and lots of fans (See system specs for details) with a enermax whisper 350 watt psu. You can find those for less than $50 if you look and they work beautifully

 

[adams828]

if you want to reach 3200+ speeds, your system will have to run at 11x multiplier and 200MHz (400MHz ddr) FSB.

your ram is generic 333MHz ram, so that will probably stop you from reaching the 400MHz ddr (ie 200MHz fsb level), even if you increase the ram voltage. getting new ram will help you OC.

depending on your ambient room temp, cpu voltage, and case cooling, you may/may not need a new cpu cooler/fan. my 2500+ is running at 3200+ on stock cooling, 1 case intake/1 output.. runs low 50's celcius under load.

having a higher frequency fsb doesn't mean you will have higher temps. what causes higher temperatures is that usually you have to increase either the voltage of the cpu or ram in order to obtain the higher operating frequency, which in turn raises your temperature.

also, some (not many, but some) 2500+s just won't hit 3200+ speed, so keep that in mind.

 

[SparkyJJO]

Spike,

Check for DUST - even a little can clog heatsink fins. What I would do is take the HSF off, pop the fan off, and dust out the heatsink (with canned air, blowing on it, or an air compressor does great too ) and then dust off the blades of the fan (again, air compressor, or just wipe them off with something). Then I would check the thermal goop on the heatsink.

Fides,

Technical explanation for increasing frequency increases temperature I can't do, but here is the gist of it: Faster it runs, the faster it produces heat, meaning it gets hotter.

 

[Spike]

Originally posted by: SparkyJJO
Spike,

Check for DUST - even a little can clog heatsink fins. What I would do is take the HSF off, pop the fan off, and dust out the heatsink (with canned air, blowing on it, or an air compressor does great too ) and then dust off the blades of the fan (again, air compressor, or just wipe them off with something). Then I would check the thermal goop on the heatsink.

Thanks for the advice. The problem is that two weeks ago I installed this cpu after doing a good job cleaning everything out. My only intake fan has a dust filter now and when I mounted the cpu I used some as 3. I am hopeing the jump is because our weather suddenly got alot warmer.

-spike

 

[FrustratedUser]

Fides,

Technical explanation for increasing frequency increases temperature I can't do, but here is the gist of it: Faster it runs, the faster it produces heat, meaning it gets hotter.

It basically boils down to this. A CPU is a capacitive load for the PSU. We all know that the impedance of a capacitor goes down with higher frequency which means that it draws more current. Same goes for a CPU.

 

[Fides]

Here's an update,

I managed to get my computer running as a 3200.. I overclocked the fsb to 200Mhz started up windows and it worked fine. The temp was about 49*C on idle.. but I wasnt gonna keep it overclocked until I got my new fan. I Went to restart my computer to put the clock speed back to normal... I did so in bios and as Windows was starting up again It said I had shut down incorrectly. Ok.. So i said start with last good configuration. I heard a very faint clicking noise and my screen turned black.. next thing I know my computer restarted starting with the Bios screen all over agian.

Every time I start my computer this happens. A faint clicking noise right after I pick an option from the emergency recovery menu. I tried under clocking all the way to 1.1Ghz, overcocking back to 2.2, increasoing the voltages, decreasing the voltages, flashing my bois, using a boot disc(windows 95, 98, and xp cd's didn't boot from CD for some reason although I'm not convinced its due to my overclocking). I also tried removing my ram chips (I have 2, a 256 and a 512 both 333Mhz) one at a time to see If i damaged them in the overclock. I alslo doubt the cpu is burnt because I can get the the windows recovery screen(normal startup, last known good startup/ safe modes) The only problem is getting windows to start.

My only theory I have is that When I overclocked my computer, It though it was a 3200+(It said so in my system information). Maybe my computer still thinks its a 3200+ even though its clocked at 2500+ speeds.

Either way tonight I'm bringing it to my local tech shop because I can't afford to have it offline.

Any suggestions anyone??

768MB Ram pc2700(512+256 chip)
asus a7v8x
AMD 2500+ XP
60 GB wester cidigtal 7200Rpm
GF4 Ti 4200

 

[myocardia]

Hmmm, it sounds like you did damage your ram, but that isn't necessarily what happened? Have you tried selecting "normal startup". I'm pretty sure that clicking noise you are hearing is just Windows loading your last known good system registry. Have you considered that the registy that Windows thinks is good is actually corrupted, because of overclocking with PC2700 ram?

 

[Fides]

its not a normal clicking noise... Its more like the very slight noise you hear when a switch is pulled.
You think both my ram chips were damaged?

 

[mato7742]

yeah same thing happened to me once Fides.


Ok, when i tried messing with the fsb way back (when i had a 2000+ PALOMINO!!! oops.) i couldn't restart windows or change bios settings however much i tried. What i did was.. i took the mobo battery out for 30 seconds, and let the bios settings go back to their original state. So i restarted windows after that, and it allowed me to enter the bios and place my fsb back to 166 (it moved it back down to 100 when reset the bios) - in the end, however, it worked. Maybe you should try that Fides.

 

[Fides]

Im pretty sure that won't help. I can get into the bios and change the settings. Its just once I load my computer and try getting into windows it resets (see above post)

 

[Fides]

.

 

[SparkyJJO]

Might as well try it, Fides - only takes a few moments to do, and if it works it beats paying the shop to do it! If it doesn't, well, nothing lost.

 

[adams828]

try what Fides said... many ppl have OCed their boards and had them "die"... not realizing that resetting the bios was all they needed. doesn't take too long, and can't hurt to try

 

[Fides]

Good news,

I went to the repair shop and the guy pointed out that I should try to repair it with my windows cd. Even though I tried already, he pointed out that my cd-rom drive wasnt set to boot properly. I'm currently repairing as we speak.