SERIOUS PROBLEM: asus p2b-s c2-566 non-oced blank screen

[Cyberian89]

hi!

i use an asus p2b-s rev 1.03 using bios rev 1012, i bought an abit slotket and wanted to install a celeron 566. i have not overclocked it (at least not yet). but when i start the pc the screen stays black. the slotket uses 66 mhz and 1,5 volt and is set to celeron.

what am i doing wrong?

thanks for your help!

rupert

addition: i have now tried bios rev 1013 beta 04 as well, doesn't work ether...

 

[JFL]

What version of the Abit slotket do you have? I believe there is one version that is not compatible with the celeron 2.

 

[Cyberian89]

hi again!

on the back of the slotket there is a lable that says "FC370 V1.1"

 

[Cyberian89]

the computer behaves just as if there was no cpu in it (i tried it).

i then thought perhaps the case of the slotket simply doesn't fit in my cpu-slot and removed the case from the slotket and only inserted the slotket itself, but it did not help.

 

[Nick Stone]

I had had similar problems with my 566 with MS6905 slocket and Abit BX6 MB. I think it's the weight of the H/S and fan (pep66) that causes the problems, but It could be a weak slot (poor contacts in the Abit BX6 MB).
Anyway the last time I traded processors when messing around, I had to reinsert the processor several times before I could get it running. I ended making a spring loaded clamp to hold it down, but it doesn't work perfectly. I don't actually know if the CPU is making good contact until I try to boot it up. Then I try to leave it alone.
My point is that you MAY have to reinsert your CPU several times and you may have to force the slocket to sit perpendicular to the MB before you can get it to work.
If it's not the CPU, then of course, you might have to reinsert the ram, or video card.
Run with minimum components -- only the momentary contact start switch, ram, video, monitor; at 1st. No other drives, cables, connections, mice keyboards. Make sure you have no mounting studs under the MB causing a short.
Then trade known good components until you find the troublesome part.

 

[Cyberian89]

i tried pressing the cpu into the slot when booting, but it did not help.
it must be the cpu, because when i insert my old cpu (pII-400) it works perfectly.
i already had to remove and reinsert the cpu several times because every time i am writing a message here, i am using my old cpu, i always tried to firmly pres the cpu into the slot, but it did not help, perhaps the problem is something different, it was only a theory. could it be that my MB rev doesn't accept slotkets, or that the bios does not?

if there is no solution tomorrow i will return the cpu and the slotket to my pc shop. the only thing that upsets me is that i bought an expensive pep66 for the cpu, and now it does not work - i will have to try to sell it to somebody.

thanks for your advice!

rupert

 

[Eug]

Are you sure if you have the right slocket? You have to make sure it supports FC-PGA chips (Coppermine, which it probably does support judging by the voltages). Check the Abit website.

Also, that motherboard may not work if the slocket is set to either auto voltage or to 1.5 V. Try setting 1.8 V and see what happens. Many older Asus boards (esp. the P2B-S) have voltage regulators which will not function at all below 1.8 V regardless of the CPU default voltage or the slocket settings. (Your Alpha PEP66 makes running 1.8 V perfectly safe.)

 

[Eug]

DAMMIT MULTIPLE POST

 

[Eug]

WTH???

 

[Eug]

:|:|:|:|:|:|

 

[JFL]

Actually, there are 3 versions of the Abit slotket, slotket I, II and III. Slotket I is NOT compatible with the Celeron 2 according to Abit and I believe yours is the same, but you should check at www.abit.com.tw

Hope this helps

 

[Skooter]

I had the same thing happen while helping a friend build his computer once. I couldn't get a BIOS post or anything. At first I thought it was the CPU and tried screwing with that for awhile, but then I looked over everything again and found that my IDE cables were in backwards for the harddrive. I would've thought that I would get a BIOS post at least, but apparently not.

Just thinkin that it might not be the CPU in your case either. Check your cables =).

BTW: If I'm totally off base here, flame on! =D

 

[Eug]

Interesting problem, Skooter, but nah... I am 99% sure it is either his slocket or his voltage.

 

[CraigRT]

I bet the P2B doesn't support an 8.5 multiplier. that board is getting pretty old
throw in a newer board and i bet problems are solved
unless it's that slocket thing some people are talking about. i personally have no idea bout that.

 

[Cyberian89]

@yield: as far as i know the c2 will automatically adjust the multiplier (resp. ignore the MB setiing) because is has a fixed multiplyer...

 

[Cyberian89]

hey eug!

thanks a lot, that was it 1,8 volts 100 mhz, works fine! (at least till now ;-)

i only hope that 1,8 volts causes no thermal problems, but i will now test the cpu, while i am in school, and then we will see.

again: thank you!

rupert

 

[they call mr big]

muiltiplyer has noting to do with it. well I've got abit !!! slotlet and C2 566 and i was having problems with it about half and hour ago, seems to be something with the slotlet, not a good fit or something, wierd, keep trying

 

[Eug]

Cool. Glad it works. By the way, I've been running 1.9 V since late July/early Aug. with a PEP66 without problems (100% load 24/7), although I would never recommend it to anyone. 1.8 V would be fine though.

 

[Cyberian89]

it's good that you say that, eug, becuase i just pulled the voltage up to 1.85, becuase at 1.8 it is only stable for about 0,5-1 hour. i hope that the problem is a too LOW voltage not a too HIGH, because i can't reduce it any further... ( i tried 1.75 - as you predicted it doesn't work)

rupert

 

[Eug]

That's interesting, because on my P2B (not S) I can't run 1.85 V 100% consistently (if it boots it boots at 1.9). (I can run 1.8 and 1.9, and strangely enough 1.7, 1.6 and 1.5.)

I don't think too HIGH a voltage (under 1.9) would be the problem. Judging by the results of other users, most (but not all) 566 chips need at least 1.75 V to hit 850 MHz, and some need 1.8 - 1.85.

 

[Cyberian89]

1,85 Volts seem much better. the system does not crash, but it shows strange behaviour after some time of work (e.g. word won't open document when burnP6 is running in background, when you turn it off and wait ten seconds it works perfect). i have now again reduced the voltage to 1,8 v, and will now use only burnP6 over a longer time period. if it does not work, i will again use it on 1,9 v, perhaps i will really need that.

there is one thing that does not sound so good: the fan of the pep66 is blowing directly onto my case, and the case is heating up very much at that point. i fear that this might be the problem...

rupert

 

[Nick Stone]

I think the fan for the Pep66 is supposed to blow out away from the MB.