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I have a older soyo 7vem motherboard with a P3 866mhz which says running at 133/6.5 during boot. It's temp runns approx 36*C/ 96*F. I have never really tried to oc a cpu before but I would like to try mabey bump it up to 900.
I really don't know where to begin I have read here about adjusting the fsb.
Closest thing I can find is Frequency/ Voltage Control in bios.
Auto Detect DIMM/PCI Clk is Disabled
Spread Spectrum Disabled
CPU Host Clock (CPU/PCI) 133/33MHz
CPU Host Clock has following optionsDefault
66/33
75/37
83/41
100/33
103/34
112/37
124/41
133/33
140/35There really is no inbetween that I can find.
Both sticks of ram are pc133 256mb ea.
I take it there is no way to lock pci and just up the fsb? Would it hurt the cpu or motherboard if i selected 140/35?
Remember I have never tried to oc b4.Thanks Chad
ASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

Just change the setting to 140/35 & you're done.
Asus A7N8X-X
1800+ @ 8 x 210MHz
512MB PC3200
Asus Ti4800SE 128MB
WinME/WinXP Pro

Well that was so easy on that it was scary.
The CPU temp dropped to 32c which is odd too??Thanks! I'll keep my eye on the ol temp.
Now off to experiment on another lol.
What's a good CPU to experiment on in a Soyo SY-6BA+IV ??
Right now I got a crappy ol celeron 700 running at 66fsb & 320mb "256mb pc133/64mb pc100"
Only reason I put in the celeron was to see if it works. It's on a slot to socket 370 adaptor. Only CPU's I have are a couple 233 slot 1's, a couple 350's, skt370 500cel & 366cel.
Some how I can't set the speed manually in bios for the 700 celeron which reads 108x6.5 at boot. I tried setting fsb to 110/35 and beeps like crazy at me. So I gotta keep resettin bios.
Everest Reports it as cpu clock 701MHz
10.5 X Multipler & CPU FSB 66.82I can't even find a 10.5 x in the bios?
i'm more to believe that Everest is telling the truth as oc the fsb of a celeron 66 to 108 sounds too far fetched.
LOL how far can I clock a 233 before it frys? As long as I don't kill the mobo that is.
ASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

The multiplier is locked on almost ALL Intel CPUs. You may be able to change the multiplier setting in the BIOS, but when you reboot, you'll find that the change didn't actually take effect. The FSB is the only thing you can experiment with. You should always raise it in small increments of about 3-5MHz at a time (when possible), then test the system after making the change.
When you see settings like 140/35, the 2nd number is the PCI speed. It's best not to let the PCI go above 38MHz.
Your 700Mhz Celeron is supposed to run at 10.5 x 66MHz FSB. Kicking the FSB up to 110MHz was just WAY too much. That would have put the CPU speed at 1155MHz, which is a 65% overclock. Generally speaking, if you can overclock your CPU by 20%, you've done good.
Asus A7N8X-X
1800+ @ 8 x 210MHz
512MB PC3200
Asus Ti4800SE 128MB
WinME/WinXP Pro

"how far can I clock a 233 before it frys?"
Actually, overclocking won't fry a CPU...if you set the speed too high, the system will either become unstable, or it won't boot at all (like the beeping you had).
What WILL fry a CPU is overheating it, or adding too much voltage. Just make sure to monitor your temps, & if you raise the CPU voltage in an attempt to stabilize the overclock, be very cautious as to how high you go with it.
Asus A7N8X-X
1800+ @ 8 x 210MHz
512MB PC3200
Asus Ti4800SE 128MB
WinME/WinXP Pro

"When you see settings like 140/35, the 2nd number is the PCI speed. It's best not to let the PCI go above 38MHz."
The normal PCI frequency is 33 mhz, and 35 mhz is about the highest that's allowed. Any higher, and your ide devices will go crazy...your hard drives will start destroying data, etc.
You should try and keep PCI at 33 mhz to protect your data. If the motherboard doesn't give you a feature to lock the PCI, then the best thing to do would be to replace the motherboard. An older, cheapo mobo might be better if it gives you more control.

Sorry I didn't mean 110/35 x 10.5 it was 110/35 x 6.5 which stated it was 715MHz. Which was the setting that beeped at me.
Don't even ask me how I managed to do this! I set 90/30 x 8.0 which should have made it 720MHz... Now I saved these settings, Let it reboot itself and then it said 145 x 6.5 running @ 950Mhz!!! According to Everest it's CPU 952MHz CPU Multiplier 10.5 CPU FSB 90.68MHz overclocked at 36%!!!!!!
It's running alot faster! Stable enough to open Everest but not exactly what I wanted plus it's probably hard on that poor cpu. Even though I have a big ol Socket A type cooler on it and it's only running at 24c, Bios reads cpu temp at 34c.
Now what I would like to know is how is this possible? & Why won't it keep my multiplier setting? All three reading are different! The bios setting, the bootup reading, & Everest!
CPU Ratio X 8.0 Is the highest possible Multiplier of all settings on this mobo.
To state it Clearly it says in bios
CPU Frequency MHz Manual
CPU Host/PCI Clock :90/30MHz
CPU Ratio :X 8.0= 720MHz
AGP Frequency Mhz : Auto = 90MHz
Vcore Voltage Adjust: NormalUpon Save & let it reboot 146 x 6.5
Is this Mobo screwy or what? Should I leave it at 952Mhz ?? :) lolASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

Update! I'm runnin at 850Mhz 80 fsb x 10.5.
It seems no matter what i change in the bios it's locked at 10.5 x multiplier. I set it at 3x and reboot 10.5.
Got me??
ASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

Ha you'll like this one!
CPU(s)
Number of CPUs 1
Name Intel Celeron
Code Name Coppermine
Specification Intel Celeron 700MHz
Family / Model / Stepping 6 8 6
Extended Family / Model 0 0
Brand ID 1
Package Socket 370 FC-PGA
Core Stepping cC0
Technology 0.18 ยต
Supported Instructions Sets MMX, SSE
CPU Clock Speed 1002.2 MHz
Clock multiplier x 10.5
Front Side Bus Frequency 95.4 MHz
Bus Speed 95.4 MHz
L1 Data Cache 16 KBytes, 4-way set associative, 32 Bytes line size
L1 Instruction Cache 16 KBytes, 4-way set associative, 32 Bytes line size
L2 Cache 128 KBytes, 4-way set associative, 32 Bytes line size
L2 Latency 2
L2 Speed 1002.2 MHz (Full)
L2 Location On Chip
L2 ECC Check enabled
L2 Data Prefetch Logic no
L2 Bus Width 256 bits
Something must be wrong with this pc It should have locked up big time! It won't hold a 100 fsb tho.Mabey time to pop in that 233 and see if i can get it up to 1ghz lol
I ain't changin anything to be jokin or playin this is just plain wierd !
ASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

I had my fun with it and it's back down to 700MHz.
If it was up to me / possible since the board is acting funny I would have just liked to oc the fsb to 100 and set multilier to 7x and lock pci settings @ the 35 mark.
The strange activity could be because of the slot to socket adaptor but hey I only paid like $10 for the board last year.
ASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

well, the thing is Celeron (as well as PIII) are multiplier-locked - that is if you change the multiplier in BIOS, your CPU will disregard it and go with whatever it was supposed to be. I hava a PIII 1 GHz (which I tried to OC with my Chaintech mobo) with adjusting the multiplier up to 8 from 7.5 to no effect. That CPU used 7.5 no matter what. Then I changed FSB to 140 and that ran fine for a while, but now it doesn't want to do 1050 (maybe because my 300 watt PSU burned and the "new" 250 watt isn't pumping enough juice (another thing you should look after). But as it was corretly mentiond by jam, you tried to OC your CPU by 65%!!! (66*10.5 = 700, but 110*10.5 = 1125) which is why you get these beeps - you are asking too much of a CPU. The reason mobos have the multiplier option is because some non-intel CPUs may be avaliable that do not have a multiplier lock and go in the same socket. Sooo don't bother with trying to change a multiplier. FSB is the only way to go with Intel CPUs
THat's my 2 cents

The 110/35 was before I relized that it the celeron was locked at 10.5x multiplier.
Thanks for the info, I guess i'll have to do some investigations with cpu multipliers now I didn't know they could be locked.
I was amazed to get it up to 1002.2MHz @95.4fsb.
Is there any sights out there that has a list of locked & unlocked cpu's?chad
ASUS A7V8X
AMD XP 2700+ 2.17ghz
768mb ddr 2700
nVidia 128mb FX 5200
WD 80gb SE
DVD R/RW

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