Memory is here!, anyone know bout FSB limitations?

[shadow of chaos]

Got my 2 sticks of twinmos pc3700 from cpu city today

Now im probably not going to use them until i can order and recieve the mobile 2600+ (paypal seriously is a pain) right now they are sitting in their box in the kitchen ( cooling down! ) lol

Later ill check the memory, but i am sure they are -43B so they maybe could do 520FSB 260mhz ram speed..

Who knows about limitations on FSB? i heard that any 32bit cpu mobo will not like anything past 265-270FSB and it starts acting weird, that is another reason i went 3700.

More news later.

[Tin]

-43b chips are very good. you should see some high FSB with those bad boys.

[shadow of chaos]

Yeah, i should wait until i get verification pay code off Paypal before i can order off excaliber pc ( they keep declining my order otherwise! ) .. maybe ill try the memory sticks later, but i know my proc cant go higher than around 2.25 so that is why i want the Mobile.

Tin how much FSB you think i will get out of these? and you said that 2.5 cas latency doesnt matter at high speed, does it?

[shadow of chaos]

Finally i come to the conclusion, the ram will not run at stock speed of 232Mhz in my system.. do you think that sucks? yeah, i am sure it does.. i can play games etc.. but prime95 will fail within 1 minute or less, i cannot even boot over 240mhz either..

I cannot flash my bios either, my 2 floppy drives are wrecked.. is there any other way to flash the bios?

Thx

[Tin]

you can flash from a cd-rom

[shadow of chaos]

Thanks tin, i have no idea of how to do that though.. i created a Dos bootdisk floppy ( because it will only read for a short amount of time and then screw up ) and i tried to go to CD rom drive or C:\ but it kept saying "Invalid drive destination" or something along those lines.

[shadow of chaos]

yo tin u there man? i need to know how to do it, i think its quite simple but i cant find any links relating to how to do this..

[speeddude2000]

nah he said he was oging to a physical checkup or something.

[shadow of chaos]

is there any other OC'ing experts out here who can help?

I have tried like 3 different bios's now with WinFlash and i just cannot get stability out of my system at all.. like i said this new ram will not even run at stock speed 232Mhz in this system as it will produce a rounding error in prime95 within 1 minute.

is it my cpu that would cause it to go strange at certain FSB's? or is it nothing to do with it?, tried altering voltages.. timings.. everything really

Nothing is helping, i either boot up to a blank screen.. or get a blue screen before windows.. or even if i do get into windows it wont last long..

Why is everyone else having no problem in overclocking when i cant get anywhere with this?

looks like i just wasted more money.

[Redfallon]

What voltages and memory timings have you tried? Have you increased the Vdimm? That's the voltage to the RAM. What is the highes you've had the vcore (cpu voltage)? What is the stock FSB for that processor? If its 333(166) or 266(133) you're already running it fairly high. I don't know much about AMD oc's though, Tin can better tell you how high that chip should get. I don't think it's the memory limiting you at that FSB.

[shadow of chaos]

Well, my processor is supposed to be a 2600+ Tbred 333FSB.. but i dunno whats goin on.. i dont know if its holding me back because my computer still thinks that it is a duron ( duno if it has lower fsb )

it is hard to tell what is holding back my oc.. i have tried 2.5-4-4-11 and 2.5-3-3-11 as suggested on one site, but it wont boot up with the 3 3 3.. odd, i have tried all voltages on the ram up to 3.30, the processor will go up to about 2.25 so i had to lower the multi aswell i put the vcore to about 1.775 and have tested at stock speed with 1.85 so its not heat.

oh, and how can the processor limit me? other people have gone to much higher FSB than i have and be stable.. and like tin, they have the same FSB as me at stock.

[shadow of chaos]

to prove that the settings i am using, here they are.. i am running what you see right now, but it produces an error in prime95 within 1 minute.

[shadow of chaos]

These are the voltages, fsb.. etc

[shadow of chaos]

Well, my computer has just screwed up!.. yep... the nvidia boot agent kept popping up out of nowhere while i was trying to overclock to a measly 240mhz over 232mhz stock ram speed.. so i kept getting blue screens before entering windows, i couldnt fix it.. i had to format.

is there actually anyone here with brains that can help me out? this is really getting on my nerves

[mb26]

what is your motherboard? only abit NF7s and DFI ultra infinity's will reach anywhere near the '265-270FSB' and that is very rare in itself, and requires modding.

you will need to up the DIMM voltage if you want to overclock the ram.. are you able to change that with your bios as it appears to be dimmed (no pun intended). i think the DRAM voltage (which you have whacked up to 3.2v is different to the DIMM voltage.)
sometimes the ram needs another .1v to run at stock speed 100% stable.

'measly 240mhz over 232mhz stock ram speed.' you have ram which is set to do 233mhz at its set voltage.. if you want more then you'll have to up the volts more for stability. 240mhz fsb is in no way measly.

'is there actually anyone here with brains that can help me out? this is really getting on my nerves'
whilst this is the overclocking section.. this (pcmech) is by no means a dedicated overclocking forum and overclocks aren't the norm here.. let alone OC experts.. pcmech users are more willing to help than the average OC forum however, so if u want help be patient please, and dont question the intelligence or knowledge of those who you want help from.

if you want more mhz from your CPU then you'll have to up the CPU voltage aswell.. 1.6v should keep it stable but you'll need to up the volts to OC it.. also what is you PSU? if it is cheap then it may struggle to supply the voltage when you try to OC.

[shadow of chaos]

Yeah, sorry.. its just this is really annoying..

Thanks for the reply though

Oh, and about the voltage of the ram, i have a DFI ultra infinity board yes.. and what you see in the pic is what i took, i do not see DIMM voltage.. i assumed that the DRAM is the voltage of the ram, since that is the only voltage changer there related to the ram.

My PSU is an Enermax 350W, i wouldnt say its cheap at all.

But as i said, i cannot even get the system stable at even stock timings & mhz of 232.. so i dont really know what to do, once i get past that then i am sure id be able to hit 250FSB no problem at all, it really doesnt help that i had no timings printed on the label of the ram except for it saying Cas2.5, i know the auto thingy sets it.. but not when u want to o'c of course.. i just followed from sites etc... but i assure you that i have altered the timings alot of times.

but if your here maybe you can reply, i have altered everything in the bios that i thought needs twiddling with..

Basically i have tried everything i can think of, and am running out of hope of even getting stability around the 240mhz ram speed mark.

P.s ... what do you mean modding? i thought the DFI didnt need any.

[Tin]

what are your amperage ratings on your PSU. they should be on the chart label....+12V, +5V, and +3.3V all have an amperage rating. my 350W antec was crapping out on me at high FSB.

[shadow of chaos]

so your saying that my computer wouldnt be stable if it was the psu? i thought it would shut down or restart itself if it was the problem..

anyway.. here is my amperage ratings..

+12v = 26A, +5V = 32A, +3.3V = 32A

they are accurate, or they should be.. i read them off the side of the psu..

also i should say that the psu cable is connected to a power socket extension box which has 5 plugs in total.. i dont think that is the problem though..

But Tin if your absolutely sure that this is the problem then i am stumped.. i havent long had this PSU and it cost over £50 so not exactly cheap either.. but if i need a new one give me your confirmation and i guess i will have to get one.
Plus i guess it could be.. there is not much else that i can see that is causing the prob.. Prime95 fails pretty instantly 20-40 secs.. so

[mb26]

on the second picture, it says, under 'overclocking control'; 'Current DIMM Voltage is 2.62 V' i dont have a DFI so i dont know if it should be DRAM voltage or DIMM voltage.. perhaps tin could clear that up (?).
anyway the point is if the ram is @ 2.6v u may need a little extra voltage. if its at 3.2 then its getting a pretty good frying (but it shouldn't have barbequed i dont think)

they are good amp ratings you shouldn't need a new PSU... (i dont think)

with the twinmos ram, 'you will need to set TRCD to 3T in order to work properly'. i'm not sure if this means 3 or higher, or just 3. give it a try.

[shadow of chaos]

Where is that setting? TRCD? i just see an option with read and write.

i see no settin with just TRCD

[shadow of chaos]

Ok.. i was just sniffing around my computer stuff, i am not using the power cable that came with the PSU, i am using a different one.. and ive noticed something between the both.. i looked at the writing on the black head and it says "10~16A, 250V" and on the one i am using now it has the same 250 voltage but only 10A instead of 10~16A.. i dont know if this is whats causing the problem.. but its worth a look.

The only thing is, this socket has a odd shape at the end of it so i cant plug it in to try it

Check it out..

There are only 2 connectors.

Hmm.. this could just be an extra cable for something else.. im not sure

[shadow of chaos]

The stress tests in prime 95 i tried.. the one that says blend and fails within 1 minute ( lots of ram tested ).. and the one that says Maximum FPU stress ( ram not tested much ) lasted for 6 minutes.. though this one didnt fail.. i just stopped it.

it is when i test the ram it goes haywall.. now i dont know what the problem is.

Ram timings are not making a difference!!!

Edit : Bleh.. i'll go to bed now.. first ill leave prime95 running with stock speed @ 232mhz.. ill be back later.

[shadow of chaos]

nope. NOOOO!!!! IT WONT RUN STOCK SPEED AT ALL! ANY TIMINGS.... JEEZ..

is the ram defective? is my computer crap? someone!!!! plz reply!

[mb26]

ok calm youself, no need to post 4 times in a row.. you should use the edit function since you know how to use it evidently...

the extra cable is for US plugs, or maybe european (?).

'Where is that setting? TRCD? i just see an option with read and write.

i see no settin with just TRCD'

well try setting them both to 3.

'TRCD will have to be set to 3T and in this case, TRP has to be set to 3T as well in order to work properly. Also this PC3700 memory by default runs at 2.7V VDIMM therefore the BIOS will automatically run this memory chip at 2.7V default.'
like i said i think your ram is running at 2.6v (obviously not running automatically at 2.7v), and it requires 2.7v, which would explain why it is not working stably.

you could go to around 252Mhz, with the following timings : 2.5-3-3-7, at 2.9v
at 2.7v you should get around 235fsb with the same timings.

with cas2 (2-3-3-7) you can get about 231/211 with 2.9v/2.7v

[mb26]

here is a picture showing you what to do to avoid any confusion..

[mb26]

and heres the second..

[sorry about posting 3 times, but i forgot to post the picture first time, u can't edit an attachment in (uh) and u can't put more than one attachment (uh again)]

enjoy your ram.

[shadow of chaos]

agh.. i have already tried that with 3-3-3 i say.. it makes no difference at all, but very well. i will try again..

are you absolutely sure that it isnt my processor that doesnt like the FSB? since everything does think its a duron.. i thought it wouldnt like high FSB since normal durons have lower front side bus than the athlons.

I will unplug my 2600+ later and plug in my older 1800+ that the computer actually recognises as an athlon and NOT a druon, thats if i get no success with the ram that is.

[mb26]

'agh.. i have already tried that with 3-3-3 i say.. it makes no difference at all, but very well. i will try again..'
you have to do this aswell as setting the ram to 2.7v.

i have no idea why your processor is showing as a duron.
if it works with the Corsair Twinx in your sig then it shouldn't be the processors fault?
the 2600 is unlocked right? so what multiplier are u running at with 233fsb and 1.6v?

[shadow of chaos]

Tin says that its probably my processor and he thinks that the extra cache has burnt out turning it into a duron, and he also thinks that it is holding back my FSB and overclock speed of the processor..

Dont forget that my corsair had lower speed.. 200mhz instead of the current 232.

Check out the picture below, and give me your thoughts.

See look? 64KBytes of l2 cache instead of 256.. he seems to think that it is accurate, it says it is a duron during boot sequence aswell.. this would mess up my overclock and not like the fsb being so high? hence the instability?

and yes MB26, i tried 2.7v and all ranges up from there.

I've decided to test, so i now have the ram set at 200mhz instead of 232.. and ill let you know if its stable (it should be) if it is.. then iguess the processor's to blame.

THE DAMN 2600+ Mobile Processor is out of stock now!!!!!! ARGHHH... ONLY TODAY MY DAD FOUND OUT THEY REFUSED PAYPAL CREDIT, IT WAS IN STOCK YESTERDAY!! NOW I PROBABLY GOTTA WAIT AGES... AGAIN!!

[shadow of chaos]

This picture says it all, the processor must be to blame.. check out the bus speed i ran it at.