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Need a 775 replacement CPU!

peanutismint

peanutismint

peanutismint

Associate
Joined
5 Sep 2003
Posts
760
Location
Cardiff Geordie
I bought a Core 2 Duo CPU from member's market about a year ago. Have only just been in a house big enough to have a PC set up (laptop til then!!) and it seems the CPU is DOA. I'm not too fussed, it's probably my own fault for taking so long to use the flipping thing! :-) but anywho, long & short of it is, I need another socket 775 CPU. My mobo is an ASRock 4Core1333-FullHD which supports:

LGA 775 for Intel® Core™ 2 Extreme / Core™ 2 Quad / Core™ 2 Duo / Pentium® Dual Core / Celeron®, supporting Quad Core Yorkfield and Dual Core Wolfdale processors

I'm using the machine for music recording so don't need a massive amount of CPU power, not looking to spend LOADS, either - for reference i think the 2GHz chip I bought from MM was £40?? But if the board supports bette chips, perhaps I'd do well to go for a quad core or something? I don't know....

If anyone could suggest a good choice of chip, please let me know.

You must keep all trade discussion within the Members Market.
 
Brilliant £50 motherboard that. I built a system for my mum with a Q6600 in it and it clocked it to 3.6GHz no problem. A Q6600 in MM is about £80 at the moment and that's what I'd buy.
 
If you don't mind going OEM (1 year warranty and no cooler supplied) then the Q6700 gives a nice bang-for-buck that works nicely with multi-threaded apps and can encode pretty well.

The Q8200 is £30 cheaper and is retail so you get a stock cooler, but it has a slower clockspeed and won't overclock as well as a Q6700, although if you need quad on a tight budget and don't want to OC, then it should be alright.
 
Cheers Vox; yeah I already have a cooler and I'm not planning to overclock but I suppose it can't hurt to have the option! £80 is more than I was looking to spend, but good to have an idea of an upper window.

Will stick a note on the MM see if anyone bites!
 
peanutismint said:
I'm using the machine for music recording so don't need a massive amount of CPU power
Click to expand...

No such thing! :)

You'll want a Quad. I dont know of any DAW's that arent quad supported, and will offer substantial performance boosts over a dual core.

Q6600 overclocked should last you years for audio production.
 
I'm 95% sure....everything powers up, fans, hard drives, PCI cards, but system won't boot. Nothing onscreen, not even a flicker. Took it to a repair place (same building where I work) and they tried just the CPU in one of their systems, and it wouldn't boot either, so unless it's a combination of things...at the moment I'm hoping it's just the CPU.

I should probably mention that whilst I say DOA, I just mean it's NOW dead, not that it never worked - I quickly put it in another machine at work as soon as it arrived just to check it and it seemed to work fine, but then as I say, it sat in its box a cupboard in my tiny flat for a year, until a few weeks ago when I moved house....
 
Weird! :confused:

Anyway if your wanting a new LGA775 chip on a budget then your probably looking at one of the new Pentium® dual cores, either an Intel® Pentium® E5200 (2.5GHz/12.5x200/2MB) or the newer Intel® Pentium® E6300 (2.8GHz/10.5x266/2MB/VT)

These are marketed under the Pentium® brand name but basically your getting a proper Wolfdale processor that runs on a lesser FSB (200-266 vs 333) and has less cache (2MB vs 6MB).

I would have suggested looking for a nice used processor from auction or OcUK MM but I dare say your not to keen to buy another used chip! :p

Intel® Pentium® E6300 gets my vote, it's a great chip and overclocks to 3.33GHz effortlessly . . . even in a basic board that only allows selecting FSB from 266MHz to 333MHz :cool:
 
Cool, thanks for that advice - will include the 6300 in my search.

Nah, I'm more than happy to try another used chip, in fact I've already posted in the wanted section! :) Maybe it should be once bitten twice shy, but this is the first thing I've bought from MM which has failed....and hopefully the last!
 
Peanut sent me his *broken* chip for testing!

Intel® Core™2 Duo E6300 - Full [Auto] 1862MHz (7x266)

1.112v
1.240v
1.248v
1.264v

27°C - 43°C

IBT (64-bit) 10 Loops Stable

1862mhzstable.gif
 
Intel® Core™2 Duo E6300 - [Auto] 3150MHz (7x450) EIST Disabled

1.456v
1.464v

43°C - 64°C
43°C - 72°C (IBT)

Prime95 Small FFTs (64-bit) 2 Hour Stable
IBT (64-bit) 10 Loops Stable

3150mhzstable.gif


3150mhzstable1.gif
 
Wow, detailed! :-) I don't even know what most of that means (I assume the different voltages are overclocked speeds??) but at least it's proved the chip is ok.

Thanks so much! For those of you who don't know, Big.Wayne PM'd me and offered to test the chip out for me - and I'm hugely grateful. Random acts of kindness really do exist in real life! :)

So now - who'd like to test my motherboard??! ;)
 
Heh no worries peanut, I did mean to just test it quickly to check it was working but one one thing led to another and it's been running all day at one speed or another! :p

I'm just finishing now and will get this chip out and posted back to you. The final test I've done is to confirm how much *actual* voltage your Conroe-E6300 needs when overclock to 2.8GHz (7x400) as this would appear to be it's sweetspot (i.e not hard to achieve).

The 2.8GHz (and other) results I posted above was done with the motherboard set on [Auto] vCore, I changed this to manual and slowly but surely worked my way downwards until I reached this point!

Nice little chip . . . I let you take it from here! :cool:

Intel® Core™2 Duo E6300 - 2800MHz (7x400) EIST Disabled

1.128v

1.136v

29°C - 46°C

IBT (64-bit) 20 Loops Stable

peanute63002800mhzulv.gif
 
Hey mate, got the chip back, stuck it in my machine - booted up first time!!! I'm not sure what happened!! I mustn't have had it seated right....although I did re-seat it several times!! Weird!!

Thanks for the OCing tip - I'd love to give it a go, but i'm worried about heat issues... Can I ask what cooling method you were using? I'm using a stock Intel cooler - I wanted to get something fancy but the guy in the shop said that in his opinion I'd be wasting my money getting anything else as the differential between coolers is nominal.... I didn't want to believe him, but I've never known a shop salesman to favour the cheaper option so I figured maybe he was onto something??!

Anyway, it seems like my chip is running at 60-65° when idle (around 80° per core)....a far cry from your temps of 45° per core when OC'd!! Any suggestions? I guess case fans don't really help the CPU much, right?? Especially as I'm trying to keep noise down in my system....Would you spring for a MASSIVE heatsink/fan combination?
 
Hey Peanut!

um those temps seem mentally high for an idle stock processor :confused:

65°C idle? . . . I'm thinking that you either didn't fit the heatsink correctly (those push-pins are a pain!) or your motherboard is over-volting the chip? . . . My money is on the heatsink not being fitted correctly! :p

I was cooling your processor with a Thermalright Ultra-120 eXtreme and a quiet AKASA 120mm PWM smart-fan, it's one of the Premium aircoolers and comes with a hefty pricetag new unless you can hunt for a used one. On modest overclocks with careful vCore control its possible to not even use a fan if you have good case cooling!



Speaking of case cooling I would say its pretty important to get this sorted, even a premium aircooler will struggle if its working inside a baking hot case! A couple of quiet 120mm fans blowing air in and sucking air out works wonders! Of course it all comes down to your chassis and if it has support for larger fans, I highly recommend the Antec 300 case!

The stock cooler should be fine for basic useage, it's a bit whiny when the fan is spinning at full whack but fairly quiet when running on reduced rpms. I think it's probably worth your while picking up a good value heatsink, there are a couple of decent Zalmans HSF's that have been priced slashed!


£12.98 inc bargain!
 
Hahah thanks for that, yeah I thought it was running a bit hot..... Probably just haven't fitted the HS properly; will have another go tomorrow. You're right about those push pins - dead fiddly! :)

Funnily enough, I have an Antec 300! :D It's got 1 x intake drawing air over the HDDs and 2 x large exhausts in the back, so the case temps are somewhere around 25° :) Much better!

As I say I'll have another look at the HS tomorrow; may have just come undone...failing that I'll check out one of those heatsinks. Bargain!

Thanks again mate for the continued help!!
 
Just reading you thread and a thought popped into my head.

Have you d/l and installed the latest BIOS from Asrock? The old BIOS if you havnt updated might not recognise the chip however unlikely it is sometimes the little things make a big difference. Tried a CMOS clearance aswell?
 
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