Corsair vengeance running at 657 MHz only

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ghouse12311

Ambassador of Buzz
I bought a new pc yesterday with one stick of corsair vengeance 4gb ddr3 1600MHz ram but CPU-Z shows that it is running at 657MHz only and it is scoring 5.4 on windows performance index. I heard that it scores more than 7 in windows performance index. Is my RAM faulty or do I have to overclock it to run at 1600MHz ?

This is my current config:

i3 3220
Gigabyte GA-B75M-D3H
Corsair CXV2 430 watts PSU
Corsair vengeance 4GB 1600MHz
Cooler master elite cm 350
Samsung 20 inch LED monitor


Planning to add a Gigabyte GTX 660 this Saturday.
 
The Sorcerer

The Sorcerer

oh wow...Xenforo!!!
Set it manually on the bios. Setting it to default values is not overclock. Just go to your bios, search for memory settings and bump it to 1600MHz. Save and restart. Nothing more.

The memory sticks are running on 1333MHz btw. Once you set it on 1600MHz CPU-Z will show 800mhz. Why? DDR3 as in Double Data Rate.
 
OP
G

ghouse12311

Ambassador of Buzz
The Sorcerer said:
Set it manually on the bios. Setting it to default values is not overclock. Just go to your bios, search for memory settings and bump it to 1600MHz. Save and restart. Nothing more.

The memory sticks are running on 1333MHz btw. Once you set it on 1600MHz CPU-Z will show 800mhz.
Click to expand...

but i have only one stick of this ram...shouldn't it show full frequency(1333MHz) if there is only one ram stick used?

will change in BIOS and check
 
W

whitestar_999

Super Moderator
Staff member
there is no significant performance benefit by running ram anything above 1333.core i 2xxx officially supports upto 1333 ram & that is why 1600 or above ram will run at 1333 unless manually overclocked.leave your ram running as such.
 
The Sorcerer

The Sorcerer

oh wow...Xenforo!!!
whitestar_999 said:
there is no significant performance benefit by running ram anything above 1333.core i 2xxx officially supports upto 1333 ram & that is why 1600 or above ram will run at 1333 unless manually overclocked.leave your ram running as such.
Click to expand...
i3 3220 supports upto 32GB memory and upto 1600MHz DRAM Frequency.

*ark.intel.com/products/65693/Intel-Core-i3-3220-Processor-(3M-Cache-3_30-GHz)
 
sukesh1090

sukesh1090

Adam young
@op,
its gigabyte mobos which prefers to run at 1333MHz.so as said by sorcerer,go to BIOS settings and there in memory settings bump the numbers from 667 to 800 and also if you want you can change the latencies to 9,which will be i guess shown as 11 in BIOS.just change those numbers by seing right or left side where the normal values for that particular option will be shown.if you need more info ask for it before you do something wrong.
 
OP
G

ghouse12311

Ambassador of Buzz
sukesh1090 said:
@op,
its gigabyte mobos which prefers to run at 1333MHz.so as said by sorcerer,go to BIOS settings and there in memory settings bump the numbers from 667 to 800 and also if you want you can change the latencies to 9,which will be i guess shown as 11 in BIOS.just change those numbers by seing right or left side where the normal values for that particular option will be shown.if you need more info ask for it before you do something wrong.
Click to expand...

hey man thanks for replying..

why it is only 800Mhz since it is only one ram stick of 1600MHz? if i add another ram will it be still 800Mhz?

also what is latencies?
 
The Sorcerer

The Sorcerer

oh wow...Xenforo!!!
Your system is using 1600MHz. Like I said before: DDR. Double Data Rate. CPU Z and such programs show actual clock speed but in reality DDR type rams have 2 times the transition of data per transfer, hence double data rate so therefore DRAM frequency is 1600MHz. So if CPU-Z says 800, in reality its 1600. You can google for more information, they ought to have clearer explanation.

If you buy another memory with same latency, frequency and assuming the the IC on the newer memory kit is compatible with older one, it will. But better off avoiding this by selling the old one and buying the new one. That's why memories are sold in kits and not single units- unless you prefer 1 large memory stick. Even the same manufacturer/specs can have different ICs. Avoid the headache.
 
OP
G

ghouse12311

Ambassador of Buzz
The Sorcerer said:
Your system is using 1600MHz. Like I said before: DDR. Double Data Rate. CPU Z and such programs show actual clock speed but in reality DDR type rams have 2 times the transition of data per transfer, hence double data rate so therefore DRAM frequency is 1600MHz. So if CPU-Z says 800, in reality its 1600. You can google for more information, they ought to have clearer explanation.

If you buy another memory with same latency, frequency and assuming the the IC on the newer memory kit is compatible with older one, it will. But better off avoiding this by selling the old one and buying the new one. That's why memories are sold in kits and not single units- unless you prefer 1 large memory stick. Even the same manufacturer/specs can have different ICs. Avoid the headache.
Click to expand...

changed the setting in BIOS and the frequency multiplier automatically got set 16 and CPU-Z now shows ~798.2 Mhz...
 
tkin

tkin

Back to school!!
You could also load the XMP for preset timings, vengeance XMP is set @ 1600MHz.
 
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