Anyone ever needed to change any jumpers on socket 370 to Slot 1 converters?

[Dat]

Anyone ever needed to change any jumpers on socket 370 to Slot 1 converters?

Cos my celeron 400 wont boot when over 499 mhz, and there is a jumper on the converter labelled JFSB, i dont have any manuals for the converter, and wondered if this jumper was holding me back.

Any ideas welcome :)

[The Doors]

*Edited

Hi Dat,
There's not a serial number or a brand on your slotket that you can search on the web?
The JFsb seems to be a jumper to set the Fsb, is it only one ore many?

[Dat]

there is one labelled JFSB and there are 5 others that use 3 pins, but they are not labelled.

I was gonna try to get the serial number, but it has a plastic backing which i am not sure how to remove :confused:

Do you think it could be something to do with these jumpers then?

[The Doors]

Well, generally on the slotket there are Jumpers for setting the proper voltage of the Cpu (Auto, 1.5v, 1.55v,...), and not yet, but the JFsb seems to be something related to the Fsb.
I don't know if it's safe, but you can think to change its setting to wiev the result, or the another way is to look all around searching to discover a code to be identified.

[The Doors]

Wait a moment,
looking on the Asus S370-DL slotket manual I found the five jumpers related to the voltage (from 1.5v to 2.6v or AutoDetect) and another one for the use with Coppermine or Celeron, this probably mean that affect the Fsb that the chip can use with the Slotket (from 66 to 100Mhz or from 100 to 133Mhz).
Can be the same thing on the your? interesting question ;-)

[Dat]

i will try to find out about the converter then, thanks for your help :)

There is no doubt i will need help again soon, so expect to see me again shortly ;)

[The Doors]

You're wellcome Dat, good luck!

[Dat]

i found that on the back of the circuit board of the converter it has diagrams of the different jumper settings.

The five jumper switches are they to adjust the voltage, and the JFSB jumper is used to change set the FSB speed from auto to 100mhz, so naturally i tried running it at 100mhz and setting my bios to the same, but still no luck :( i dunno why i cant seem to go any higher.

Do you think that if i was to run my celeron at 600 i would need to increase the voltage to it? cos at 500 it runs 100% stable with normal voltage.

Hmmmm.......... Im nearly outta ideas now :confused:

Any ideas would be greatly appreciated.

[The Doors]

Yes, i think that you must rise a little the voltage for that frequency, but look constantly your temps, it's a must!
and also take a look to the Cpu database for the voltages used by other guys @600Mhz with your chip.

I hope it helps you to get your Extreme OC :-)

[Dat]

i know for sure my temps are fine, i will take a look at the voltages used by others, would not enough voltage cause my pc to not even give a display then?

[The Doors]

Oh yeah, you must consider that your C400 need more power to works so higher, it's like a car tuned, for more speeds wants more air & gasoline!

[Dat]

i just checked the voltages that others have been using when OC this chip, mine are lower then theres, so i will try to play with voltage later, but for now i got a BBQ to go too :cool:

I will speak to you soon.

Thanks again for all your help my friend :)

[The Doors]

You're wellcome, it's only what other Guys made with me when I started to asks ;-)

[Mr B]

A good rule of thumb to go by when raising the vcore is not to exceed +15% of the default vcore setting.

You didn't mention, what are you using for a heatsink/fan on the Celeron?? It's extremely advisable to upgrade from the intel unit, if you're still using it, to something designed with overclocking in mind.

The Alpha PEP66T is designed for slotket applications. I've got one on my P/// 700E at the moment. Keeps it very, very cool.

[The Doors]

Hi Mr B,
can you help me to understand why my Pep doesn't works great on my system?
With an ambient temp of 29C, the Cpu is around 38C @idle and 46-47C @full load, Mobo 32C, Case 29C & Hd 33C.

*edited by Moderator*

Let me answer that, but i also need to remove that one word...LOL Asteriks or not, can't have it in there.

I understand you angst, but keep the "F" bombs in check, please?? =)

Mr B

[Mr B]

Ok, that done...=)

Now, on the PEP, did you put the "feet" that came with the hsf on?? There should be a little foam rubber thing that came with it, with eight of them cut out of it.

On the base of the PEP, there should be four small circles. You need to put one of the feet on each circle. These are to keep the hsf stable, and level in relation to the cpu.

I'm assuming you used Arctic Silver thermal compound?? If not, get some! Best stuff going for use when overclocking! I can't recommend this stuff enough.

That's about the only things that would keep your temps up that high. You also might try reversing the direction the fan is blowing. If you have it blowing down onto the hsf, try flipping it over so it's "sucking" air off of the hsf, or vice-versa. This might help a bit, but usually will only drop the temps a degree or three if it helps at all (it might raise the temps that degree or so, too, depending.).

Reply and let me know if you've got the feet on, and used A.S. too.

Mr B

** just remembered on other thing that's caught a few people up w/ these hsf's... Make sure that the clip is on the right direction. You want to have the point at which it sits bearing down on the heatsink to be centered above the cpu die. If the clip is on the wrong direction, the hsf will not sit level on the cpu. Check this out, as well.... **

[freshy98]

got to agree on the ASII with Mr. B! it's great!!! I have it now on my 850@1133 and the full load temp is 45C :D
with my old 566@876 I used standard grease and that gave me 45 too...

[The Doors]

I haven't used pads coz there wasn't in the box of my Pep66U when bought, it's strange, but to go I've made, many times to found the right thickness, the pads with many layer of isulating tape and I'm sure that the Hs fit properly now.
About the thermal paste, well, I use always a very thin layer AS II, and I've also lapped a little my Pep with wet/dry sandpaper, grain 2000, coz there was a nice scratch on the bottom :-)
I've tried also with a mod to my Pep to fit two fans, a Sanyo-Denki that sucks and a Delta38 that blows, so the exhaust is faster than the intake, but the results doesn't seems to be better :-(
About the clip, well semms to be right coz the difference from the temp @idle and @full load is max 8-10 degree C increased in step never bigger then 1-2 degree C, but I'll check better to be sure. At the moment i close the clip on the bigger side of the socket on the Mobo, where you found the write 'socket 370' and in front of the mem module slots.

The airflow into the case is Great with no more then 2 degree C up to the ambient temp: I've used for the intake 2x92mm (rated of 50Cfm) on the left side of the cover that sucks onto the pci cards & Agp, like the 80mm (44Cfm) on front low, and for the exhaust a 120mm (90Cfm) on top of the upper cover and also a 80mm (44Cfm) on the up/back.

I don't know what other I must do, probably I must replace my Pep with another kind of cooler, I'm only a little discouraged at this point :-( what you think guys?