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Over-clock FAIL

realbaz

realbaz

realbaz

Associate
Joined
23 Oct 2010
Posts
4
After purchasing a new powerpack, i overclocked my FSB to 250, lowerd my ram from 1066 to 833 mhz (couldnt find ram multiplier) the computer loaded into the desktop, then crashed. any ideas?

i am running

INTEL PENTIUM DUAL CORE E5200 RUNNING @ 2.50GHz
Biostar P43-a7
4gb DDR2 ram
Nvidia 8400 GS
Psu : 600 W,
 
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I purchased it from a shop in my local town , tested it and it output around 580W, anyway why could my pc be freezing? i will consider getting a better psu
 
Hello and welcome to the forums.

Please remove the competitor link before a mod see's ;)

With the price of that psu I am not surprised, get yourself a decent PSU.

Did you increase the CPU voltage.
 
Ignoring the cheap PSU issue that you seem adament is ok...

I wouldn't just be chucking the fsb in straight into the deep end; build it up gradually from the stock fsb and volts and when you have stability issues then up the volts slightly, until you get to a point of diminishing gains.
 
realbaz said:
I purchased it from a shop in my local town
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first mistake, local computer shops rarely stock decent equipment, 12 quid for something that could quite easily take 300 quids worth of hardware with it, thats a bad choice ;)
tested it and it output around 580W, anyway why could my pc be freezing? i will consider getting a better psu
Click to expand...

dont consider getting, DO IT, if your overclocking, you run the risk of parts dying, if your using a shoddy substandard PSU for the job, then your just asking for trouble.
 
I upgraded from a 700W "cheap" PSU to a 700W OCZ PSU and my overclock became stable, I could even push it further.

As already said, you really need a better PSU for overclocking. Overclocking isnt an instant thing either, take your time over it, read up on your stuff and you will find your overclocks become easier to achieve. It took me a few days to get 3.2Ghz stable, it took me a further few months to get 3.6Ghz stable.
 
realbaz said:
I purchased it from a shop in my local town , tested it and it output around 580W, anyway why could my pc be freezing? i will consider getting a better psu
Click to expand...

Just how did you do this? Your rig will pull less than 150w at the wall. Also there is no way a £12 psu will output anything remotely near 600w. You will be lucky if it manages 300w without blowing up and taking your rig with it.
 
You need to gradually increase the FSB, testing for stability at each stage. I used to have exactly the same CPU with a budget power supply and mobo, and it wouldn't go above 2.8GHz. When I upgraded the power supply I found it was stable at 3GHz. All on standard voltages.
 
I didnt do the testing, one of the hardware specialists from collage did, it seems to boot up stable with around 240 FSB, but the pc hangs on stress tests, would it be best to increase voltage or decrease FSB? && im getting a better psu within the next month or two.
 
realbaz said:
I didnt do the testing, one of the hardware specialists from collage did, it seems to boot up stable with around 240 FSB, but the pc hangs on stress tests, would it be best to increase voltage or decrease FSB? && im getting a better psu within the next month or two.
Click to expand...

Not raining on your parade or anything, but properly testing a PSU requires some seriously specialised kit, such as that made by Chroma. My guess is that the hardware specialist checked the voltage on the rails and multiplied up by the "claimed" amps to get to 580 watts.

I'd drop the idea of overclocking until you've spent ~£40 on a proper PSU.
 
pcAnywhere said:
Not raining on your parade or anything, but properly testing a PSU requires some seriously specialised kit, such as that made by Chroma. My guess is that the hardware specialist checked the voltage on the rails and multiplied up by the "claimed" amps to get to 580 watts.

I'd drop the idea of overclocking until you've spent ~£40 on a proper PSU.
Click to expand...

You can do it on the cheap though.... 12v car headlight bulbs work quite nicely as a dummy load, but you need to know what you are doing and you'll need to power 10 of them at once in order to pull ~500w.

I've done it myself after modifiying PSU's, but this was all low voltage Battery powered stuff so was relatively safe compared to higher mains voltages.

£60-£80 is a bargain for a decent 500W PSU when you consider how much power it produces... I've seen some 200W PSU's cost over £100 but these are 48v ones which are used for telecoms...
 
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