A short while ago i posted a thread asking for help on getting my little brother's computer to a) run at 450mhz and b)to get the correct processor speed reported in BIOS. I was asked whether there was any motherboard model or manufacturer on the motherboard, so i've just looked and found the following: ACER M151 B1 9738 TS7 DC2870000C SMC FCDC37C935APM C9722-C5585-AIC 6T95458-2 Phoenix 1995 MK42 ALI M1533 A1 97939 TS7 I've tried keying those into a search engine but they yield no results and mean sbsolutely nothing to me! The only other thing i can tell you is that one of the BIOS settings is 66mhz as oppose to 75mhz or 100mhz and that there is a blue switch panel on the motherboard, with six switches on it. Using different ones alters the processor speed reported in BIOS, but the highest i have been able to get it so far is 333mhz...and when this is the case Windows freezes whilst loading! Any suggestions guys? I'm at the end of my tether and as you'll have gathered, i'm no expert!

ok lets start from the beginning. Looked at your last post for reference. What'll be needed is the model and P/N of the computer. Its printed on a sticker somewhere on the computer or goto http://www.acersupport.com/desktop/index.html Those above numbers look like they come off chips and 1 label and really don't id the motherboard. I looked on acers web site but there are way too many. Problem with brand computers is they usually have special built parts etc and will have branded part numbers vs manufacturer part numbers. actually you can go to the web site and find the manual. Acer has decent documentation showing switch settings, specs, etc..

Justin, many thanks for this. I've located the P/N but having been to Acer's website it refuses to recognise it! (9B.KC77F.G12) As such, i'm at a dead loss as to what to do next. Thanks again for your time.

Ignore the above post. I've now discovered my model at... http://www.acersupport.com/desktop/html/p4000.html ...but i'll never be able to make head nor tail of the jumper settings etc it refers to! Is there any 'idiots' guide to this sort of thing?! All i want to do is flick a couple of switches into the correct positions and watch the computer go at 400mhz and be reported as such...i take it this isn't going to be easy?! I wish i was clever! Lol.

Here's what we know about the AMD K6-2 AFX...its a 2.2v chip made to run at 100Mhz fsb. Thanks for the info as AMD made at least 4 K6-2 flavor chips. And the motherboard offers 60, 66, 75 and 83Mhz settings and miltipliers (host bus) from 1.5 to 4.0 (I think the highest is actually 4.5) by .5 increments. If, at this point, you're at 333Mhz I have to assume your settings are for 83Mhz x 4.0 which, according to acer, is max for this board. If the multi trick will work (fools the K6 into thinking it's seeing a 6.0 miltiplier) then we're back to jam's previous suggested setting: "However, if you have the optional 75mhz FSB setting, you can hit 450mhz by using the 2x trick (6 x 75mhz = 450)." Originally on jp1, I'm assuming jumper 2-3 was on, sw1 was off, off, off, off, on, off and jp18, jp19, jp20 were all on 1-2 for 200Mhz Now on jp1, I'm assuming jumper 1-2 is on, sw1 is on, off, on, on, off, off and jp18, jp19, jp20 are on 2-3, 1-2, 2-3 for 333Mhz. If I'm wrong please give me the current settings you're hitting 333Mhz with. I think you'll find a better pic of this motherboard at the link below my name. Please post back and maybe we can get to the bottom of this. Skip http://th99.pley.org/m/A-B/35880.htm

OK...that board doesn't have a 100mhz FSB setting, so you'll have to improvise to try to get the most out of the K6-2/450. If you wanna overclock, you may be able to get it to run at 500mhz. Try the "Host Bus/PCI Bus Frequency" (FSB/PCI) at 83.3/33mhz & the "Host Bus/PCI Bus Ratio" (multiplier) at 2.0. A "trick" with the K6-2 is that it interprets the 2.0 multiplier setting as 6.0...so 6 x 83.3 = 500mhz. Chances are fair that your CPU will handle that speed. If not, set the FSB/PCI to 75/30mhz & multiplier to 2.0, you'll get 450...6 x 75 = 450mhz Here's the other settings to check, but chances are, they're already set correctly or it probably wouldn't run at all: CPU Core Voltage = 2.2v CPU Voltage Type = Dual voltage type CPU I don't know what you have for h/w monitoring, onboard sound or onboard video...I have to assume they're already set correctly too. Good luck...

the manual and skipcox's pic shows the jumper settings its really easy, match the settings above with the respective tables on the spec sheet http://www.acersupport.com/desktop/html/p4000_jumpers.html or use skipcox's pic. It is larger and shows you location of jumpers etc. We all started out like this. Fortunately for you the internet is at your disposal, whereas I started before I had access or when the beginning of the internet for us common folk (at the time prodigy was the only ISP)..and didn't have a vast resource of info and ppl jam and skip put really good info out though for your level may be a bit confusing for reference I would print the jumper setting table and try the various combos for multiplier and fsb and write down the resulting frequency you get..if it doesn't work note it also Also don't limit your testing to the K6 settings either, try the different CPU jumpers. to enable or set a jumper, say Last comment: having a faster CPU doesn't always guarantee you'll get that speed cuz you have to consider the motherboard's capabilities