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Penium D 805 L1 Cache 16kb

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September 19, 2006 4:25:39 AM

can any one explain why it is only reconising 16kb instead of the 26kb+32kb

More about : penium 805 cache 16kb

September 19, 2006 4:35:43 AM

The Pentium 4 (Netburst) architecture is a little different in the fact that it does not utilize a traditional L1 Instruction Cache, but rather a Trace Cache capable of holding 12,000 microoperations (It will display as 12K uops). There is a traditional L1 Data Cache of 16KB.

All that said, be a little more specific. If the CPU is recoginzing 16KB of L1 cache per core (Per Core), then that is normal. If it only sees one cache of 16KB, then there might be a problem.

What does it say exactly, and what are you using to determine this? Are you using CPU-Z or something like that?
September 19, 2006 4:39:11 AM

with cpu-z cache L1 data 2 x 16 KBytes
i am also having a problem with my oc it wont lemme go over 3.5. i have more then enough cooling two 25cm case fans and a 16cm heatsink/fan
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September 19, 2006 4:50:20 AM

The overclock sounds more like an issue with the motherboard - you may have hit its FSB limit.
September 19, 2006 4:53:25 AM

965G-DS3 i dont think it has one that low
September 19, 2006 4:55:39 AM

It doesn't.

On CPU-Z, it also shows FSB frequency in the lower left corner of the first page - what is that frequency at?
September 19, 2006 5:02:19 AM

rated fsb 536MHz analso when i was putting it togethier i saw that one of the pins on the mb for the cpu was incorrectly molded i wouldnt think this would be of a problem but any ideas to why the l1 cache is only saying 2x16 Kbites
September 19, 2006 5:08:40 AM

The deformed pin must have been a ground pin - if it was being used, you would have noticed when the CPU wouldn't have started up/worked correctly.

The L1 Cache should read 2 x 16KB L1 Data (Or 32KB L1 Data). Below it should be the entry for the Trace Cache, which reads 2 x 12K uops (Or 24K uops). That's normal.

The only reason for your failed overclock that I can offer is that the D 805 is only rated for a 533MHz FSB. Your board by default supports an 800/1066MHz FSB.
September 19, 2006 5:15:01 AM

i got the first part but what about the 800/1066 thing iv heard people using this mb for 805 for oc is there something im doing wrong
September 19, 2006 5:27:33 AM

The Gigabyte 965-DS3 is designed to run with processors that use a 200 or 266MHz Front Side Bus. Because Intel quad-pumps the FSB, the rated front side bus speed for the board is 800/1066MHz, depending on the processor it is used with. The Pentium D 805, on the other hand, is designed to run with a 133MHz (533MHz Quad Pumped) front side bus. To summarize:

Board: 800/1066MHz FSB; CPU: 533MHz FSB

The CPU is topping out on its limits before the motherboard. I don't know what OCs other people are getting with this board. This may not be the case, but its the best and most logical explanation I am capable of offering you.

wusy is the overclocking guy around here. Try asking him if you get a chance.
September 27, 2006 6:43:22 AM

iv read on the new egg replys and otherplaces that they have got them to a 200mhz fsb it works.
September 27, 2006 7:43:54 AM

That is true but all processors are not identical. You may just not be able to get that high.
September 27, 2006 12:27:45 PM

this is due to intel s inclusive cache....although cpuz is right when it give the amount of cache, it s "wrong" when you make a computation to see the l1 cache latency, as the l1 data cache is not used,the data are taken from the cache l2, as it contains these datas, this l2 cache being an inclusive one, the l1 cache data are always present in the cache l2............same way with all intel proc. , back to the time of the p2 and p3........
September 27, 2006 3:16:05 PM

Quote:
It's pretty much frying the VRM11.0 slowly especially when overclocking.


Now that you've mentioned it, do you have an idea on how to know what VRM a board's using (say, like an AsRock ConRoeXfire with an i945P MCH, for instance), without only stating that, if it supports Core, then...

Quote:
The reason I'm guessing idontcarerealy can't reach over 3.5Ghz is either the VRM is overheating and thus vcore fluctuating badly or he bought a CNPS9500 like everyone else(THG is going to pay for that!)


Isn't CNPS9500LED one of the best coolers around? If else, what would you recommend, then?

Sorry for being off topic. Thanks.


Cheers!
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